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cy7c1354cv25 cy7c1356cv25 9-mbit (256 k 36/512 k 18) pipelined sram with nobl? architecture cypress semiconductor corporation ? 198 champion court ? san jose , ca 95134-1709 ? 408-943-2600 document number: 38-05537 rev. *m revised september 25, 2012 9-mbit (256 k 36/512 k 18) pipelined sram with nobl? architecture features pin-compatible with and functionally equivalent to zbt? supports 250-mhz bus operations with zero wait states available speed grades are 250, 200, and 166 mhz internally self-timed output buffe r control to eliminate the need to use asynchronous oe fully registered (inputs and outputs) for pipelined operation byte write capability single 2.5 v power supply (v dd ) fast clock-to-output times ? 2.8 ns (for 250-mhz device) clock enable (cen ) pin to suspend operation synchronous self-timed writes available in pb-free 100-pin tqfp package, pb-free and non pb-free 119-ball bga package and 165-ball fbga package ieee 1149.1 jtag-compatible boundary scan burst capability?linear or interleaved burst order ?zz? sleep mode option and stop clock option functional description the cy7c1354cv25/cy7c1356cv25 [1] are 2.5 v, 256 k 36/512 k 18 synchronous pipelined burst srams with no bus latency? (nobl ?? logic, respectively. they are designed to support unlimited true back-to-back read/write operations with no wait states. the cy7c1354cv25/cy7c1356cv25 are equipped with the advanced (nobl) logic required to enable consecutive read/write operations with data being transferred on every clock cycle. this feature dramatically improves the thro ughput of data in systems that require freq uent write/read transitions. the cy7c1354cv25/cy7c1356cv25 are pin-compatible with and functionally equivalent to zbt devices. all synchronous inputs pass through input registers controlled by the rising edge of the clock. all data outputs pass through output registers controlled by the rising edge of the clock. the clock input is qualified by the clock enable (cen ) signal, which when deasserted suspends operation an d extends the previous clock cycle. write operations are controll ed by the byte write selects (bw a ?bw d for cy7c1354cv25 and bw a ?bw b for cy7c1356cv25) and a write enable (we ) input. all writes are conducted with on-chip synchron ous self-timed write circuitry. three synchronous chip enables (ce 1 , ce 2 , ce 3 ) and an asynchronous output enable (oe ) provide for easy bank selection and output tri-state c ontrol. in order to avoid bus contention, the output drivers ar e synchronously tri-stated during the data portion of a write sequence. logic block diagram ? cy7c1354cv25 a0, a1, a c mode bw a bw b we ce1 ce2 ce3 oe read logic dqs dqp a dqp b dqp c dqp d d a t a s t e e r i n g o u t p u t b u f f e r s memory array e e input register 0 address register 0 write address register 1 write address register 2 write registry and data coherency control logic burst logic a0' a1' d1 d0 q1 q0 a0 a1 c adv/ld adv/ld e input register 1 s e n s e a m p s e clk cen write drivers bw c bw d zz sleep control o u t p u t r e g i s t e r s note 1. for best-practices recommendations, plea se refer to the cypress application note system design guidelines on www.cypress.com .
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 2 of 33 logic block diagram ? cy7c1356cv25 a0, a1, a c mode bw a bw b we ce1 ce2 ce3 oe read logic dqs dqp a dqp b d a t a s t e e r i n g o u t p u t b u f f e r s memory array e e input register 0 address register 0 write address register 1 write address register 2 write registry and data coherency control logic burst logic a0' a1' d1 d0 q1 q0 a0 a1 c adv/ld adv/ld e input register 1 s e n s e a m p s o u t p u t r e g i s t e r s e clk cen write drivers zz sleep control
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 3 of 33 contents selection guide ................................................................ 4 pin configurations ........................................................... 4 pin definitions .................................................................. 7 functional overview ........................................................ 8 single read accesses ................................................ 8 burst read accesses .................................................. 8 single write accesses ................................................. 8 burst write accesses .................................................. 9 sleep mode ................................................................. 9 interleaved burst address tabl e ................................. 9 linear burst address table ......................................... 9 zz mode electrical characteri stics .............................. 9 truth table ...................................................................... 10 partial truth table for read/write ................................ 11 partial truth table for read/write ................................ 11 ieee 1149.1 serial boundary sc an (jtag) ... ........... .... 12 disabling the jtag feature ...................................... 12 test access port (tap) ............................................. 12 performing a tap r eset .......... .............. .......... 12 tap registers ...................................................... 12 tap instruction set ................................................... 13 tap controller state diagram ....................................... 14 tap controller block diagram ...................................... 15 tap timing ...................................................................... 15 tap ac switching characteristics ............................... 16 2.5 v tap ac test conditions ....................................... 16 2.5 v tap ac output load equivalent ......................... 16 tap dc electrical characteristics and operating conditions ..................................................... 17 identification register definitions ................................ 17 scan register sizes ....................................................... 17 instruction codes ........................................................... 17 boundary scan exit order ...... ....................................... 18 boundary scan exit order ...... ....................................... 19 maximum ratings ........................................................... 20 operating range ............................................................. 20 electrical characteristics ............................................... 20 capacitance .................................................................... 21 thermal resistance ........................................................ 21 ac test loads and waveforms ..................................... 21 switching characteristics .............................................. 22 switching waveforms .................................................... 23 ordering information ...................................................... 26 ordering code definitions ..... .................................... 26 package diagrams .......................................................... 27 acronyms ........................................................................ 30 document conventions ................................................. 30 units of measure ....................................................... 30 document history page ................................................. 31 sales, solutions, and legal information ...................... 33 worldwide sales and design s upport ......... .............. 33 products .................................................................... 33 psoc solutions ......................................................... 33
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 4 of 33 selection guide description 250 mhz 200 mhz 166 mhz unit maximum access time 2.8 3.2 3.5 ns maximum operating current 250 220 180 ma maximum cmos standby current 40 40 40 ma pin configurations figure 1. 100-pin tqfp (14 20 1.4 mm) pinout a a a a a 1 a 0 v ss v dd a a a a a a v ddq v ss dqb dqb dqb v ss v ddq dqb dqb v ss nc v dd dqa dqa v ddq v ss dqa dqa v ss v ddq v ddq v ss dqc dqc v ss v ddq dqc v dd v ss dqd dqd v ddq v ss dqd dqd dqd v ss v ddq a a ce 1 ce 2 bwa ce 3 v dd v ss clk we cen oe nc(18m) a a 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 a a adv/ld zz cy7c1354cv25 a a a a a 1 a 0 v ss v dd a a a a a a a nc nc v ddq v ss nc dqpa dqa dqa v ss v ddq dqa dqa v ss nc v dd dqa dqa v ddq v ss dqa dqa nc nc v ss v ddq nc nc nc nc nc nc v ddq v ss nc nc dqb dqb v ss v ddq dqb dqb v dd v ss dqb dqb v ddq v ss dqb dqb dqpb nc v ss v ddq nc nc nc a a ce 1 ce 2 nc nc bwb bwa ce 3 v dd v ss clk we cen oe nc(18m) a a 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 a a adv/ld zz mode cy7c1356cv25 bwd mode bwc dqc dqc dqc dqc dqpc dqd dqd dqd dqpb dqb dqa dqa dqa dqa dqpa dqb dqb (256 k 36) (512 k 18) bwb nc nc nc dqc nc nc(288m) nc(144m) nc(72m) nc(36m) nc(288m) nc(144m) nc(72m) nc(36m) dqpd
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 5 of 33 figure 2. 119-ball bga (14 22 2.4 mm) pinout pin configurations (continued) 234567 1 a b c d e f g h j k l m n p r t u dq a v ddq nc/576m nc/1g dq c dq d dq c dq d aa aa nc/18m v ddq ce 2 a v ddq v ddq v ddq v ddq nc/144m nc a dq c dq c dq d dq d tms v dd a nc/72m dqp d a a adv/ld ace 3 nc v dd aanc v ss v ss nc dqp b dq b dq b dq a dq b dq b dq a dq a nc tdi tdo v ddq tck v ss v ss v ss nc v ss v ss v ss v ss mode ce 1 v ss oe v ss v ddq bw c a v ss we v ddq v dd nc v dd v ss clk nc bw a cen v ss v ddq v ss zz nc/288m a a a1 a0 v ss v dd nc cy7c1354cv25 (256 k 36) dqp c dq b a nc/36m dq c dq b dq c dq c dq c dq b dq b dq a dq a dq a dq a dqp a dq d dq d dq d dq d bw d bw b 234567 1 a b c d e f g h j k l m n p r t u nc/36m dq a v ddq nc/576m nc/1g nc dq b dq b dq b dq b aa aa nc/18m v ddq ce 2 a nc v ddq nc v ddq v ddq v ddq nc nc nc/144m nc/72m a dq b dq b dq b dq b nc nc nc nc tms v dd a a dqp b a a adv/ld a ce 3 nc v dd aanc v ss v ss nc nc dqp a dq a dq a dq a dq a dq a dq a dq a nc tdi tdo v ddq tck v ss v ss v ss nc v ss v ss v ss v ss v ss mode ce 1 v ss nc oe v ss v ddq bw b av ss nc v ss we nc v ddq v dd nc v dd nc v ss clk nc nc bw a cen v ss nc v ddq v ss nc zz nc/288m a a a a1 a0 v ss nc v dd nc cy7c1356cv25 (512 k 18)
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 6 of 33 figure 3. 165-ball fbga (13 15 1.4 mm) pinout pin configurations (continued) 234 567 1 a b c d e f g h j k l m n p r tdo nc/576m nc/1g dqp c dq c dqp d nc dq d a ce 1 bw b ce 3 bw c cen ce2 dq c dq d dq d mode nc dq c dq c dq d dq d dq d nc/36m nc/72m v ddq bw d bw a clk we v ss v ss v ss v ss v ddq v ss v dd v ss v ss v ss nc v ss v ss v ss v ss v ddq v ddq nc v ddq v ddq v ddq v ddq a a v dd v ss v dd v ss v ss v ddq v dd v ss v dd v ss v dd v ss v ss v ss v dd v dd v ss v dd v ss v ss nc tck a0 v ss tdi a a dq c v ss dq c v ss dq c dq c nc v ss v ss v ss v ss nc v ss a1 dq d dq d nc/144m nc v ddq v ss tms 891011 nc/288m a a adv/ld nc oe nc/18m a nc v ss v ddq nc dqp b v ddq v dd dq b dq b dq b nc dq b nc dq a dq a v dd v ddq v dd v ddq dq b v dd nc v dd dq a v dd v ddq dq a v ddq v dd v dd v ddq v dd v ddq dq a v ddq a a v ss a a a dq b dq b dq b zz dq a dq a dqp a dq a a v ddq a 234 567 1 a b c d e f g h j k l m n p r tdo nc/576m nc/1g nc nc dqp b nc dq b a ce 1 ce 3 bw b cen ce2 nc dq b dq b mode nc dq b dq b nc nc nc nc/36m nc/72m v ddq bw a clk we v ss v ss v ss v ss v ddq v ss v dd v ss v ss v ss nc v ss v ss v ss v ss v ddq v ddq nc v ddq v ddq v ddq v ddq a a v dd v ss v dd v ss v ss v ddq v dd v ss v dd v ss v dd v ss v ss v ss v dd v dd v ss v dd v ss v ss nc tck a0 v ss tdi a a dq b v ss nc v ss dq b nc nc v ss v ss v ss v ss nc v ss a1 dq b nc nc/144m nc v ddq v ss tms 891011 nc/288m a a adv/ld a oe nc/18m a nc v ss v ddq nc dqp a v ddq v dd nc dq a dq a nc nc nc dq a nc v dd v ddq v dd v ddq dq a v dd nc v dd nc v dd v ddq dq a v ddq v dd v dd v ddq v dd v ddq nc v ddq a a v ss a a a dq a nc nc zz dq a nc nc dq a a v ddq a cy7c1356cv25 (512 k 18) cy7c1354cv25 (256 k 36) a a nc nc
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 7 of 33 pin definitions pin name i/o type pin description a 0 , a 1 , a input- synchronous address inputs used to select one of the address locations . sampled at the rising edge of the clk. bw a , bw b , bw c , bw d input- synchronous byte write select inputs, active low . qualified with we to conduct writes to the sram. sampled on the rising edge of clk. bw a controls dq a and dqp a , bw b controls dq b and dqp b , bw c controls dq c and dqp c , bw d controls dq d and dqp d . we input- synchronous write enable input, active low . sampled on the rising edge of clk if cen is active low. this signal must be asserted low to initiate a write sequence. adv/ld input- synchronous advance/load input used to advance the on-chip address counter or load a new address . when high (and cen is asserted low) the internal burst count er is advanced. when low, a new address can be loaded into the device for an access. after being deselected, adv/ld should be driven low in order to load a new address. clk input- clock clock input . used to capture all synchronous inputs to the device. clk is qualified with cen . clk is only recognized if cen is active low. ce 1 input- synchronous chip enable 1 input, active low . sampled on the rising edge of clk. used in conjunction with ce 2 and ce 3 to select/deselect the device. ce 2 input- synchronous chip enable 2 input, active high . sampled on the rising edge of clk. used in conjunction with ce 1 and ce 3 to select/deselect the device. ce 3 input- synchronous chip enable 3 input, active low . sampled on the rising edge of clk. used in conjunction with ce 1 and ce 2 to select/deselect the device. oe input- asynchronous output enable, active low . combined with the synchronous logic block inside the device to control the direction of the i/o pins. when low, the i/o pins are allowed to behave as outputs. when deasserted high, i/o pins are tri-stated, and act as input data pins. oe is masked during the data portion of a write sequence, during the first clock when emerging from a deselected state and when the device has been deselected. cen input- synchronous clock enable input, active low . when asserted low the clock signal is recognized by the sram. when deasserted high the clock signal is masked. since deasserting cen does not deselect the device, cen can be used to extend the previous cycle when required. dq s i/o- synchronous bidirectional data i/o lines . as inputs, they feed into an on-chip da ta register that is triggered by the rising edge of clk. as outputs, they deliver the da ta contained in the memory location specified by addresses during the pr evious clock rise of the read cycle. the di rection of the pins is controlled by oe and the internal control logic. when oe is asserted low, the pins can behave as outputs. when high, dq a ?dq d are placed in a tri-state condition. the out puts are automatically tr i-stated during the data portion of a write sequence, during the first clock wh en emerging from a deselected state, and when the device is deselected, regardless of the state of oe . dqp x i/o- synchronous bidirectional data parity i/o lines . functionally, these signals are identical to dq [a:d]. during write sequences, dqp a is controlled by bw a , dqp b is controlled by bw b , dqp c is controlled by bw c , and dqp d is controlled by bw d . mode input strap pin mode input . selects the burst order of the device. tied hi gh selects the interleaved burst order. pulled low selects the linear burst order. mode should not change states durin g operation. when left floating mode will default high, to an interleaved burst order. tdo jtag serial output synchronous serial data-out to the jtag circuit . delivers data on the negative edge of tck. tdi jtag serial input synchronous serial data-in to the jtag circuit . sampled on the rising edge of tck. tms test mode select synchronous this pin controls the test access port state machine . sampled on the rising edge of tck. tck jtag-clock clock input to the jtag circuitry .
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 8 of 33 functional overview the cy7c1354cv25/cy7c1356cv25 are synchronous-pipelined burst nobl srams designed specifically to eliminate wait states during write/read transitions. all synchronous inputs pass through input registers controlled by the rising edge of the clock. the clock signal is qualified with the clock enable input signal (cen ). if cen is high, the clock signal is not recognized and all internal states are maintained. all synchronous operations are qualified with cen . all data outputs pass through output registers controlled by the rising edge of the clock. maximum access dela y from the clock rise (t co ) is 2.8 ns (250-mhz device). accesses can be initiated by asserting all three chip enables (ce 1 , ce 2 , ce 3 ) active at the rising edge of the clock. if clock enable (cen ) is active low and adv/ld is asserted low, the address presented to the device will be latched. the access can either be a read or write oper ation, depending on the status of the write enable (we ). bw [d:a] can be used to conduct byte write operations. write operations are qualified by the write enable (we ). all writes are simplified with on- chip synchronous self-t imed write circuitry. three synchronous chip enables (ce 1 , ce 2 , ce 3 ) and an asynchronous output enable (oe ) simplify depth expansion. all operations (reads, writes, and de selects) are pipelined. adv/ld should be driven low once the device has been deselected in order to load a new address for the next operation. single read accesses a read access is initiated when the following conditions are satisfied at clock rise: (1) cen is asserted low, (2) ce 1 , ce 2 , and ce 3 are all asserted active, (3) the write enable input signal we is deasserted high, and (4) adv/ld is asserted low. the address presented to the address inputs is latched into the address register and presented to the memory core and control logic. the control logic determines that a read access is in progress and allows the requested data to propagate to the input of the output register. at the rising edge of the next clock the requested data is allowed to propagate through the output register and onto the data bus within 2.8 ns (250-mhz device) provided oe is active low. after the first clock of the read access the output buffers are controlled by oe and the internal control logic. oe must be driven low in order for the device to drive out the requested data. during the second clock, a subsequent operation (read/write/ deselect) can be initiated. deselecting the device is also pipelined. therefore, when the sram is deselected at clock rise by one of the chip enable signals, its output will tri-state following the next clock rise. burst read accesses the cy7c1354cv25/cy7c1356cv25 have an on-chip burst counter that allows the user the ability to supply a single address and conduct up to four reads without reasserting the address inputs. adv/ld must be driven low in order to load a new address into the sram, as described in single read accesses . the sequence of the burst coun ter is determined by the mode input signal. a low input on mode selects a linear burst mode, a high selects an interleaved burst sequence. both burst counters use a0 and a1 in the burst sequence, and will wrap around when incremented sufficiently. a high input on adv/ld will increment the internal burst counter regardless of the state of chip enables inputs or we . we is latched at the beginning of a burst cycle. therefore, the type of access (read or write) is maintained throughout the burst sequence. single write accesses write access are initiated when the following conditions are satisfied at clock rise: (1) cen is asserted low, (2) ce 1 , ce 2 , and ce 3 are all asserted active, and (3) the write signal we is asserted low. the address presented to a 0 ?a 16 is loaded into the address register. the write signals are latched into the control logic block. on the subsequent clock rise t he data lines are automatically tri-stated regardless of the state of the oe input signal. this allows the external logic to present the data on dq and dqp (dq a,b,c,d /dqp a,b,c,d for cy7c1354cv25 and dq a,b /dqp a,b for cy7c1356cv25). in addition, the address for the subsequent access (read/write/deselect) is latched into the address register (provided the appropriate control signals are asserted). v dd power supply power supply inputs to the core of the device . v ddq i/o power supply power supply for the i/o circuitry . v ss ground ground for the device . should be connected to ground of the system. nc ? no connects . this pin is not connected to the die. nc/18m, nc/36m, nc/72m, nc/144m, nc/288m, nc/576m, nc/1g ? these pins are not connected . they will be used for expansion to the 18m, 36m, 72m, 144m 288m, 576m, and 1g densities. zz input- asynchronous zz ?sleep? input . this active high input plac es the device in a non-time critical ?sleep? condition with data integrity preserved. for normal operation, this pin has to be low or left floating. zz pin has an internal pull-down. pin definitions (continued) pin name i/o type pin description
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 9 of 33 on the next clock rise the data presented to dq and dqp (dq a,b,c,d /dqp a,b,c,d for cy7c1354cv25 and dq a,b /dqp a,b for cy7c1356cv25) (or a subset for byte write operations, see write cycle description table for details) inputs is latched into the device and the write is complete. the data written during the writ e operation is controlled by bw (bw a,b,c,d for cy7c1354cv25 and bw a,b for cy7c1356cv25) signals. the cy7c1354cv25/cy7c1356cv25 provides byte write capability that is described in the write cycle description table. asserting the write enable input (we ) with the selected byte write select (bw ) input will selectively write to only the desired bytes. bytes not selected during a byte write operation will remain unaltered. a syn chronous self-timed write mechanism has been provided to simplify the write operations. byte write capability has been included in order to greatly simplify read/modify/write sequences, which can be reduced to simple byte write operations. because the cy7c1354cv25/cy7c1356cv25 are common i/o devices, data should not be driven into the device while the outputs are active. the output enable (oe ) can be deasserted high before presenting data to the dq and dqp (dq a,b,c,d /dqp a,b,c,d for cy7c1354cv25 and dq a,b /dqp a,b for cy7c1356cv25) inputs. doing so will tri-state the output drivers. as a safety precaution, dq and dqp (dq a,b,c,d /dqp a,b,c,d for cy7c1354cv25 and dq a,b /dqp a,b for cy7c1356cv25) are automatically tri-stated during th e data portion of a write cycle, regardless of the state of oe . burst write accesses the cy7c1354cv25/cy7c1356cv25 has an on-chip burst counter that allows the user the ability to supply a single address and conduct up to four write operations without reasserting the address inputs. adv/ld must be driven low in order to load the initial address, as described in single write accesses . when adv/ld is driven high on the subsequent clock rise, the chip enables (ce 1 , ce 2 , and ce 3 ) and we inputs are ignored and the burst counter is incremented. the correct bw (bw a,b,c,d for cy7c1354cv25 and bw a,b for cy7c1356cv25) inputs must be driven in each cycle of the burst wr ite in order to write the correct bytes of data. sleep mode the zz input pin is an asynchronous input. asserting zz places the sram in a power conservation ?sleep? mode. two clock cycles are required to enter into or exit from this ?sleep? mode. while in this mode, data inte grity is guaranteed. accesses pending when entering the ?sleep? mode are not considered valid nor is the completion of the operation guaranteed. the device must be deselected prior to entering the ?sleep? mode. ce 1 , ce 2 , and ce 3, must remain inactive for the duration of t zzrec after the zz input returns low. interleaved burst address table (mode = floating or v dd ) first address a 1 , a 0 second address a 1 , a 0 third address a 1 , a 0 fourth address a 1 , a 0 00 01 10 11 01 00 11 10 10 11 00 01 11 10 01 00 linear burst address table (mode = gnd) first address a 1 , a 0 second address a 1 , a 0 third address a 1 , a 0 fourth address a 1 , a 0 00 01 10 11 01 10 11 00 10 11 00 01 11 00 01 10 zz mode electrical characteristics parameter description test conditions min max unit i ddzz sleep mode standby current zz ? v dd ?? 0.2 v ? 50 ma t zzs device operation to zz zz ?? v dd ? 0.2 v ? 2t cyc ns t zzrec zz recovery time zz ? 0.2 v 2t cyc ?ns t zzi zz active to sleep current th is parameter is sampled ? 2t cyc ns t rzzi zz inactive to exit sleep curr ent this parameter is sampled 0 ? ns
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 10 of 33 truth table the truth table for cy7c1354cv25/cy7c1356cv25 follows. [2, 3, 4, 5, 6, 7, 8] operation address used ce zz adv/ ld we bw x oe cen clk dq deselect cycle none h l l x x x l l?h tri-state continue deselect cycle none x l h x x x l l?h tri-state read cycle (begin burst) external l l l h x l l l?h data out (q) read cycle (continue burst) n ext x l h x x l l l?h data out (q) nop/dummy read (begin burst) e xternal l l l h x h l l?h tri-state dummy read (continue burst) next x l h x x h l l?h tri-state write cycle (begin burst) external l l l l l x l l?h data in (d) write cycle (continue burst) next x l h x l x l l?h data in (d) nop/write abort (begin burst) none l l l l h x l l?h tri-state write abort (continue burst) next x l h x h x l l?h tri-state ignore clock edge (stall) current x l x x x x h l?h ? sleep mode none xh x xxxx x tri-state notes 2. x = ?don?t care?, h = logic high, l = logic low, ce stands for all chip enables active. bw x = l signifies at least one byte write select is active, bw x = valid signifies that the desired byte write selects are asserted , see write cycle description table for details. 3. write is defined by we and bw x . see write cycle description table for details. 4. when a write cycle is detected, all i/os are tri-stated, even during byte writes. 5. the dq and dqp pins are contro lled by the current cycle and the oe signal. 6. cen = h inserts wait states. 7. device will power-up deselected and the i/os in a tri-state condition, regardless of oe . 8. oe is asynchronous and is not sampled with the clock rise. it is masked internally during write cycles. during a read cycle dqs a nd dqp x = tri-state when oe is inactive or when the device is deselected, and dqs = data when oe is active.
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 11 of 33 partial truth table for read/write the partial truth table for read/write for cy7c1354cv25 follows. [9, 10, 11, 12] function (cy7c1354cv25) we bw d bw c bw b bw a read h x x x x write ? ? no bytes written l h h h h write byte a? ? (dq a and dqp a )lhhhl write byte b ? (dq b and dqp b )lhhlh write bytes b, a l h h l l write byte c ? ? (dq c and dqp c )lhlhh write bytes c, a l h l h l write bytes c, b l h l l h write bytes c, b, a l h l l l write byte d ? ? (dq d and dqp d )llhhh write bytes d, a l l h h l write bytes d, b l l h l h write bytes d, b, a l l h l l write bytes d, c l l l h h write bytes d, c, a l l l h l write bytes d, c, b l l l l h write all bytes lllll partial truth table for read/write the partial truth table for read/write for cy7c1356cv25 follows. [9, 10, 11, 12] function (cy7c1356cv25) we bw b bw a read h x x write ? no bytes written l h h write byte a ?? (dq a and dqp a )lhl write byte b ? (dq b and dqp b )llh write both bytes l l l notes 9. x = ?don?t care?, h = logic high, l = logic low, ce stands for all chip enables active. bw x = l signifies at least one byte write select is active, bw x = valid signifies that the desired byte write selects are asserted , see write cycle description table for details. 10. write is defined by we and bw x . see write cycle description table for details. 11. when a write cycle is detected, all i/os are tri-stated, even during byte writes. 12. table only lists a partial listing of the byte write combinations. any combination of bw x is valid. appropriate write will be done based on which byte write is active.
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 12 of 33 ieee 1149.1 serial boundary scan (jtag) the cy7c1354cv25/cy7c1356cv25 incorporates a serial boundary scan test access port (tap) in the bga package only. the tqfp package does not offer this functionality. this part operates in accordance with ieee standard 1149.1-1900, but doesn?t have the set of functions required for full 1149.1 compliance. these functions from the ieee specification are excluded because their inclusion places an added delay in the critical speed path of the sram. note the tap controller functions in a manner that does not conflict with the operation of other devices using 1149.1 fully compliant taps. the tap operates using jedec-standard 2.5 v i/o logic levels. the cy7c1354cv25/cy7c1356cv25 contains a tap controller, instruction register, boundary scan register, bypass register, and id register. disabling the jtag feature it is possible to operate the sram without using the jtag feature. to disable the tap co ntroller, tck must be tied low (v ss ) to prevent clocking of the device. tdi and tms are internally pulled up and may be unconnected. they may alternately be connected to v dd through a pull-up resistor. tdo should be left unconnected. upon power-up, the device will come up in a reset state which wil l not interfere with the operation of the device. test access port (tap) test clock (tck) the test clock is used only with the tap controller. all inputs are captured on the rising edge of tc k. all outputs are driven from the falling edge of tck. test mode select (tms) the tms input is used to give commands to the tap controller and is sampled on the rising edge of tck. it is allowable to leave this ball unconnected if the tap is not used. the ball is pulled up internally, resulting in a logic high level. test data-in (tdi) the tdi ball is used to serially input information into the registers and can be connected to the input of any of the registers. the register between tdi and tdo is chosen by the instruction that is loaded into the tap instruction register. for information on loading the instruction register, see tap controller state diagram on page 14 . tdi is internally pulled up and can be unconnected if the tap is unus ed in an application. tdi is connected to the most signific ant bit (msb) of any register. test data-out (tdo) the tdo output ball is used to serially clock data-out from the registers. the output is active depending upon the current state of the tap state machine (see instruction codes on page 17 ). the output changes on the falling edge of tck. tdo is connected to the least significant bit (lsb) of any register. performing a tap reset a reset is performed by forcing tms high (v dd ) for five rising edges of tck. this reset does not affect the operation of the sram and may be performed while the sram is operating. at power-up, the tap is reset internally to ensure that tdo comes up in a high z state. tap registers registers are connected betw een the tdi and tdo balls and allow data to be scanned into and out of the sram test circuitry. only one register can be selected at a time through the instruction register. data is serially loaded into the tdi ball on the rising edge of tck. data is output on the tdo ball on the falling edge of tck. instruction register three-bit instructions can be serially loaded into the instruction register. this register is loaded when it is placed between the tdi and tdo balls as shown in the tap controller block diagram on page 15 . upon power-up, the instruction register is loaded with the idcode instruction. it is also loaded with the idcode instruction if the controller is placed in a reset state as described in the previous section. when the tap controller is in th e capture-ir state, the two least significant bits are loaded with a binary ?01? pattern to allow for fault isolation of the board-level serial test data path. bypass register to save time when serially shifting data through registers, it is sometimes advantageous to skip certain chips. the bypass register is a single-bit register that can be placed between the tdi and tdo balls. this allows data to be shifted through the sram with minimal delay. the by pass register is set low (v ss ) when the bypass instruction is executed. boundary scan register the boundary scan register is connected to all the input and bidirectional balls on the sram. the boundary scan register is loaded with the contents of the ram i/o ring when the tap controll er is in the capture-dr state and is then placed between the tdi and tdo balls when the controller is moved to the shift-dr state. the extest, sample/preload and sample z instructions can be used to capture the contents of the i/o ring. the boundary scan exit order on page 18 and boundary scan exit order on page 19 show the order in which the bits are connected. each bit corresponds to one of the bumps on the sram package. the msb of the register is connected to tdi, and the lsb is connected to tdo. identification (id) register the id register is loaded with a vendor-specific, 32-bit code during the capture-dr state when the idcode command is loaded in the instruction register . the idcode is hardwired into the sram and can be shifted out when the tap controller is in the shift-dr state. the id regist er has a vendor code and other information described in the identification register definitions on page 17 .
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 13 of 33 tap instruction set overview eight different instructions are possible with the three bit instruction register. al l combinations are listed in the instruction codes table. three of thes e instructions are listed as reserved and should not be used. the other five instructions are described in detail below. instructions are loaded into the tap controller during the shift-ir state when the instruction register is placed between tdi and tdo. during this state, instructions are shifted through the instruction register through the tdi and tdo balls. to execute the instruction once it is shifted in, the tap controller needs to be moved into the update-ir state. idcode the idcode instruction causes a vendor-specific, 32-bit code to be loaded into the instruction register. it also places the instruction register between the tdi and tdo balls and allows the idcode to be shifted out of the device when the tap controller enters the shift-dr state. the idcode instruction is loade d into the instruction register upon power-up or whenever the tap controller is given a test logic reset state. sample z the sample z instruction causes the boundary scan register to be connected between the tdi and tdo pins when the tap controller is in a shift-dr state. the sample z command puts the output bus into a high z state until the next command is given during the ?update ir? state. sample/preload sample/preload is a 1149.1 mandatory instruction. when the sample/preload instructions are loaded into the instruction register and the tap controller is in the capture-dr state, a snapshot of data on the inputs and output pins is captured in the boundary scan register. the user must be aware that t he tap controller clock can only operate at a frequency up to 20 mhz, while the sram clock operates more than an order of magnitude faster. because there is a large difference in the clock frequencies, it is possible that during the capture-dr state, an input or output will undergo a transition. the tap may then tr y to capture a signal while in transition (metastable state). this will not harm the device, but there is no guarantee as to the value that will be captured. repeatable results may not be possible. to guarantee that the boundary scan register will capture the correct value of a signal, the sram signal must be stabilized long enough to meet the tap controller?s capture set-up plus hold times (t cs and t ch ). the sram clock input might not be captured correctly if there is no way in a design to stop (or slow) the clock during a sample/preload instruction. if this is an issue, it is still possible to capture all other signals and simply ignore the value of the ck an d ck# captured in the boundary scan register. once the data is captured, it is possible to shift out the data by putting the tap into the shift-dr state. this places the boundary scan register between the tdi and tdo pins. preload allows an initial data pattern to be placed at the latched parallel outputs of the boun dary scan register cells prior to the selection of another boundary scan test operation. the shifting of data for the sample and preload phases can occur concurrently when require d?that is, while data captured is shifted out, the preloaded data can be shifted in. bypass when the bypass instruction is loaded in the instruction register and the tap is placed in a shift- dr state, the bypass register is placed between the tdi and tdo pins. the advantage of the bypass instruction is that it shortens the boundary scan path when multiple devices are connected together on a board. extest the extest instruction enables the preloaded data to be driven out through the system ou tput pins. this inst ruction also selects the boundary scan register to be connected for serial access between the tdi and tdo in the shift-dr controller state. reserved these instructions are not im plemented but are reserved for future use. do not use these instructions.
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 14 of 33 tap controller state diagram the tap controller state diagram follows. [13] test-logic reset run-test/ idle select dr-scan select ir-scan capture-dr shift-dr capture-ir shift-ir exit1-dr pause-dr exit1-ir pause-ir exit2-dr update-dr exit2-ir update-ir 1 1 1 0 1 1 0 0 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 1 0 1 0 1 1 1 1 0 note 13. the 0/1 next to each state represents the value of tms at the rising edge of the tck.
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 15 of 33 tap controller block diagram tap timing bypass register 0 instruction register 0 1 2 identification register 0 1 2 29 30 31 . . . boundary scan register 0 1 2 . . x . . . s election circuitr y selection circuitry tck tms tap controller tdi tdo t tl test clock (tck) 123456 test mode select (tms) t th test data-out (tdo) t cyc test data-in (tdi) t tmsh t tmss t tdih t tdis t tdox t tdov don?t care undefined
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 16 of 33 2.5 v tap ac test conditions input pulse levels ...............................................v ss to 2.5 v input rise and fall time ....................................................1 ns input timing reference levels .. ..................................... 1.25 v output reference levels .............................................. 1.25 v test load termination supply voltage .................. ........1.25 v 2.5 v tap ac output load equivalent tap ac switchi ng characteristics over the operating range parameter [14, 15] description min max unit clock t tcyc tck clock cycle time 50 ? ns t tf tck clock frequency ? 20 mhz t th tck clock high time 20 ? ns t tl tck clock low time 20 ? ns output times t tdov tck clock low to tdo valid ? 10 ns t tdox tck clock low to tdo invalid 0 ? ns set-up times t tmss tms set-up to tck clock rise 5 ? ns t tdis tdi set-up to tck clock rise 5 ? ns t cs capture set-up to tck rise 5 ? ns hold times t tmsh tms hold after tck clock rise 5 ? ns t tdih tdi hold after clock rise 5 ? ns t ch capture hold after clock rise 5 ? ns tdo 1.25v 20pf z = 50 ? o 50 ? notes 14. t cs and t ch refer to the set-up and hold time requirements of latching data from the boundary scan register. 15. test conditions are specified using t he load in tap ac test conditions. t r /t f = 1 ns.
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 17 of 33 tap dc electrical characteristics and operating conditions (0 c < t a < +70 c; v dd = 2.5 v 0.125 v unless otherwise noted) parameter [16] description test conditions min max unit v oh1 output high voltage i oh = ?1.0 ma, v ddq = 2.5 v 2.0 ? v v oh2 output high voltage i oh = ?100 a, v ddq = 2.5 v 2.1 ? v v ol1 output low voltage i ol = 8.0 ma, v ddq = 2.5 v ? 0.4 v v ol2 output low voltage i ol = 100 a v ddq = 2.5 v ? 0.2 v v ih input high voltage v ddq = 2.5 v 1.7 v dd + 0.3 v v il input low voltage v ddq = 2.5 v ?0.3 0.7 v i x input load current gnd < v in < v ddq ?5 5 a identification regi ster definitions instruction field cy7c1354cv25 cy7c1356cv25 description revision number (31:29) 000 000 reserved for version number. cypress device id (28:12) 01011001000100110 01011001000010110 reserved for future use. cypress jedec id (11:1) 00000110100 00000110100 allows unique identification of sram vendor. id register presence (0) 1 1 indicate the presence of an id register. scan register sizes register name bit size ( 36) bit size ( 18) instruction 3 3 bypass 1 1 id 32 32 boundary scan order (119-ball bga package) 69 69 boundary scan order (165-ball fbga package) 69 69 instruction codes instruction code description extest 000 captures the input/output ring contents. places the boundar y scan register between the tdi and tdo. forces all sram outputs to high z state. idcode 001 loads the id register wit h the vendor id code and places the register between tdi and tdo. this operation does not affect sram operation. sample z 010 captures the input/output contents. plac es the boundary scan register between tdi and tdo. forces all sram output drivers to a high z state. reserved 011 do not use: this instruct ion is reserved for future use. sample/preload 100 captures the input/ output ring contents. places the bou ndary scan register between tdi and tdo. does not affect the sram operation. reserved 101 do not use: this instruct ion is reserved for future use. reserved 110 do not use: this instruct ion is reserved for future use. bypass 111 places the bypass register between tdi and tdo. this operation does not affect sram operation. note 16. all voltages referenced to v ss (gnd).
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 18 of 33 boundary scan exit order (256 k 36) bit # 119-ball id 165-ball id 1k4 b6 2h4 b7 3m4 a7 4f4 b8 5b4 a8 6g4 a9 7c3 b10 8b3 a10 9d6 c11 10 h7 e10 11 g6 f10 12 e6 g10 13 d7 d10 14 e7 d11 15 f6 e11 16 g7 f11 17 h6 g11 18 t7 h11 19 k7 j10 20 l6 k10 21 n6 l10 22 p7 m10 23 n7 j11 24 m6 k11 25 l7 l11 26 k6 m11 27 p6 n11 28 t4 r11 29 a3 r10 30 c5 p10 31 b5 r9 32 a5 p9 33 c6 r8 34 a6 p8 35 p4 r6 36 n4 p6 37 r6 r4 38 t5 p4 39 t3 r3 40 r2 p3 41 r3 r1 42 p2 n1 43 p1 l2 44 l2 k2 45 k1 j2 46 n2 m2 47 n1 m1 48 m2 l1 49 l1 k1 50 k2 j1 51 not bonded (preset to 1) not bonded (preset to 1) 52 h1 g2 53 g2 f2 54 e2 e2 55 d1 d2 56 h2 g1 57 g1 f1 58 f2 e1 59 e1 d1 60 d2 c1 61 c2 b2 62 a2 a2 63 e4 a3 64 b2 b3 65 l3 b4 66 g3 a4 67 g5 a5 68 l5 b5 69 b6 a6 boundary scan exit order (continued) (256 k 36) bit # 119-ball id 165-ball id
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 19 of 33 boundary scan exit order (512 k 18) bit # 119-ball id 165-ball id 1k4 b6 2h4 b7 3m4 a7 4f4 b8 5b4 a8 6g4 a9 7c3 b10 8b3 a10 9t2 a11 10 not bonded (preset to 0) not bonded (preset to 0) 11 not bonded (preset to 0) not bonded (preset to 0) 12 not bonded (preset to 0) not bonded (preset to 0) 13 d6 c11 14 e7 d11 15 f6 e11 16 g7 f11 17 h6 g11 18 t7 h11 19 k7 j10 20 l6 k10 21 n6 l10 22 p7 m10 23 not bonded (preset to 0) not bonded (preset to 0) 24 not bonded (preset to 0) not bonded (preset to 0) 25 not bonded (preset to 0) not bonded (preset to 0) 26 not bonded (preset to 0) not bonded (preset to 0) 27 not bonded (preset to 0) not bonded (preset to 0) 28 t6 r11 29 a3 r10 30 c5 p10 31 b5 r9 32 a5 p9 33 c6 r8 34 a6 p8 35 p4 r6 36 n4 p6 37 r6 r4 38 t5 p4 39 t3 r3 40 r2 p3 41 r3 r1 42 not bonded (preset to 0) not bonded (preset to 0) 43 not bonded (preset to 0) not bonded (preset to 0) 44 not bonded (preset to 0) not bonded (preset to 0) 45 not bonded (preset to 0) not bonded (preset to 0) 46 p2 n1 47 n1 m1 48 m2 l1 49 l1 k1 50 k2 j1 51 not bonded (preset to 1) not bonded (preset to 1) 52 h1 g2 53 g2 f2 54 e2 e2 55 d1 d2 56 not bonded (preset to 0) not bonded (preset to 0) 57 not bonded (preset to 0) not bonded (preset to 0) 58 not bonded (preset to 0) not bonded (preset to 0) 59 not bonded (preset to 0) not bonded (preset to 0) 60 not bonded (preset to 0) not bonded (preset to 0) 61 c2 b2 62 a2 a2 63 e4 a3 64 b2 b3 65 not bonded (preset to 0) not bonded (preset to 0) 66 g3 not bonded (preset to 0) 67 not bonded (preset to 0) a4 68 l5 b5 69 b6 a6 69 b6 a6 69 b6 a6 68 l5 b5 69 b6 a6 66 g3 not bonded (preset to 0) 67 not bonded (preset to 0) a4 68 l5 b5 69 b6 a6 boundary scan exit order (continued) (512 k 18) bit # 119-ball id 165-ball id
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 20 of 33 maximum ratings exceeding maximum ratings may shorten the useful life of the device. user guidelines are not tested. storage temperature .. ............... ............... ?65 c to +150 c ambient temperature with power applied ............ ............... ............... ?55 c to +125 c supply voltage on v dd relative to gnd .......?0.5 v to +3.6 v supply voltage on v ddq relative to gnd ...... ?0.5 v to +v dd dc to outputs in tri-state ...................?0.5 v to v ddq + 0.5 v dc input voltage ................................. ?0.5 v to v dd + 0.5 v current into outputs (low) ........................................ 20 ma static discharge voltage (per mil-std-883, method 3015) .............. ........... > 2001 v latch-up current ................................................... > 200 ma operating range range ambient temperature v dd / v ddq commercial 0 c to +70 c 2.5 v 5% industrial ?40 c to +85 c electrical characteristics over the operating range parameter [17, 18] description test conditions min max unit v dd power supply voltage 2.375 2.625 v v ddq i/o supply voltage for 2.5 v i/o 2.375 v dd v v oh output high voltage for 2.5 v i/o, i oh = ? 1.0 ma 2.0 ? v v ol output low voltage for 2.5 v i/o, i ol = 1.0 ma ? 0.4 v v ih input high voltage for 2.5 v i/o 1.7 v dd + 0.3 v v v il input low voltage [17] for 2.5 v i/o ?0.3 0.7 v i x input leakage current except zz and mode gnd ? v i ? v ddq ?5 5 ? a input current of mode input = v ss ?30 ? ? a input = v dd ?5 ? a input current of zz input = v ss ?5 ? ? a input = v dd ?30 ? a i oz output leakage current gnd ? v i ? v ddq, output disabled ?5 5 ? a i dd v dd operating supply v dd = max, i out = 0 ma, f = f max = 1/t cyc 4-ns cycle, 250 mhz ?250ma 5-ns cycle, 200 mhz ?220ma 6-ns cycle, 166 mhz ?180ma i sb1 automatic ce power-down current ? ttl inputs max v dd , device deselected, v in ? v ih or v in ? v il , f = f max = 1/t cyc 4-ns cycle, 250 mhz ?130ma 5-ns cycle, 200 mhz ?120ma 6-ns cycle, 166 mhz ?110ma i sb2 automatic ce power-down current ? cmos inputs max v dd , device deselected, v in ? 0.3 v or v in > v ddq ?? 0.3 v, f = 0 all speed grades ?40ma notes 17. overshoot: v ih(ac) < v dd + 1.5 v (pulse width less than t cyc /2), undershoot: v il(ac) > ?2 v (pulse width less than t cyc /2). 18. t power-up : assumes a linear ramp from 0 v to v dd (min) within 200 ms. during this time v ih < v dd and v ddq ? v dd .
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 21 of 33 i sb3 automatic ce power-down current ? cmos inputs max v dd , device deselected, v in ? 0.3 v or v in > v ddq ?? 0.3 v, f = f max = 1/t cyc 4-ns cycle, 250 mhz ?120ma 5-ns cycle, 200 mhz ?110ma 6-ns cycle, 166 mhz ?100ma i sb4 automatic ce power-down current ? ttl inputs max v dd , device deselected, v in ? v ih or v in ? v il , f = 0 all speed grades ?40ma electrical characteristics (continued) over the operating range parameter [17, 18] description test conditions min max unit capacitance parameter [19] description test conditions 100-pin tqfp max 119-ball bga max 165-ball fbga max unit c in input capacitance t a = 25 c, f = 1 mhz, v dd = 2.5 v, v ddq = 2.5 v 555pf c clk clock input capacitance 5 5 5 pf c i/o input/output capacitance 5 7 7 pf thermal resistance parameter [19] description test conditions 100-pin tqfp package 119-ball bga package 165-ball fbga package unit ? ja thermal resistance (junction to ambient) test conditions follow standard test methods and procedures for measuring thermal impedance, per eia/jesd51. 29.41 34.1 16.8 c/w ? jc thermal resistance (junction to case) 6.13 14 3.0 c/w ac test loads and waveforms figure 4. ac test loads and waveforms output r = 1667 ? r = 1538 ? 5pf including jig and scope (a) (b) output r l = 50 ? z 0 = 50 ? v t = 1.25 v 2.5 v all input pulses v ddq gnd 90% 10% 90% 10% ? 1 ns ? 1 ns (c) 2.5 v i/o test load note 19. tested initially and after any design or proc ess change that may affect these parameters.
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 22 of 33 switching characteristics over the operating range parameter [20, 21] description -250 -200 -166 unit min max min max min max t power [22] v cc (typical) to the first access read or write 1?1?1?ms clock t cyc clock cycle time 4.0?5?6?ns f max maximum operating frequency ? 250 ? 200 ? 166 mhz t ch clock high 1.8 ? 2.0 ? 2.4 ? ns t cl clock low 1.8 ? 2.0 ? 2.4 ? ns output times t co data output valid after clk rise ? 2.8 ? 3.2 ? 3.5 ns t eov oe low to output valid ? 2.8 ? 3.2 ? 3.5 ns t doh data output hold after clk rise 1.25 ? 1.5 ? 1.5 ? ns t chz clock to high z [23, 24, 25] 1.25 2.8 1.5 3.2 1.5 3.5 ns t clz clock to low z [23, 24, 25] 1.25 ? 1.5 ? 1.5 ? ns t eohz oe high to output high z [23, 24, 25] ? 2.8 ? 3.2 ? 3.5 ns t eolz oe low to output low z [23, 24, 25] 0?0?0?ns set-up times t as address set-up before clk rise 1.4 ? 1.5 ? 1.5 ? ns t ds data input set-up before clk rise 1.4 ? 1.5 ? 1.5 ? ns t cens cen set-up before clk rise 1.4 ? 1.5 ? 1.5 ? ns t wes we , bw x set-up before clk rise 1.4 ? 1.5 ? 1.5 ? ns t als adv/ld set-up before clk rise 1.4 ? 1.5 ? 1.5 ? ns t ces chip select set-up 1.4 ? 1.5 ? 1.5 ? ns hold times t ah address hold after clk rise 0.4 ? 0.5 ? 0.5 ? ns t dh data input hold after clk rise 0.4 ? 0.5 ? 0.5 ? ns t cenh cen hold after clk rise 0.4 ? 0.5 ? 0.5 ? ns t weh we , bw x hold after clk rise 0.4?0.5?0.5?ns t alh adv/ld hold after clk rise 0.4 ? 0.5 ? 0.5 ? ns t ceh chip select hold after clk rise 0.4 ? 0.5 ? 0.5 ? ns notes 20. timing reference level is when v ddq = 2.5 v. 21. test conditions shown in (a) of figure 4 on page 21 unless otherwise noted. 22. this part has a voltage regulator internally; t power is the time power needs to be supplied above v dd minimum initially, before a read or write operation can be initiated. 23. t chz , t clz , t eolz , and t eohz are specified with ac test conditions shown in (b) of figure 4 on page 21 . transition is measured 200 mv from steady-state voltage. 24. at any given voltage and temperature, t eohz is less than t eolz and t chz is less than t clz to eliminate bus contention between srams when sharing the same data bus. these specifications do not imply a bus contention condition, but reflect parameters guaranteed over worst case user condi tions. device is designed to achieve high z prior to low z under the same system conditions. 25. this parameter is sampled and not 100% tested.
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 23 of 33 switching waveforms figure 5. read/write timing [26, 27, 28] write d(a1) 123 456789 clk t cyc t cl t ch 10 ce t ceh t ces we cen t cenh t cens bw x adv/ld t ah t as address a1 a2 a3 a4 a5 a6 a7 t dh t ds data in-out (dq) t clz d(a1) d(a2) d(a5) q(a4) q(a3) d(a2+1) t doh t chz t co write d(a2) burst write d(a2+1) read q(a3) read q(a4) burst read q(a4+1) write d(a5) read q(a6) write d(a7) deselect oe t oev t oelz t oehz t doh don?t care undefined q(a6) q(a4+1) notes 26. for this waveform zz is tied low. 27. when ce is low, ce 1 is low, ce 2 is high and ce 3 is low. when ce is high, ce 1 is high or ce 2 is low or ce 3 is high. 28. order of the burst sequence is determined by the status of the mode (0 = linear, 1 = interleaved). burst operations are opti onal.
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 24 of 33 figure 6. nop, stal l and deselect cycles [29, 30, 31] switching waveforms (continued) read q(a3) 456 78910 clk ce we cen bw x adv/ld address a3 a4 a5 d(a4) data in-out (dq) a1 q(a5) write d(a4) stall write d(a1) 123 read q(a2) stall nop read q(a5) deselect continue deselect don?t care undefined t chz a2 d(a1) q(a2) q(a3) notes 29. for this waveform zz is tied low. 30. when ce is low, ce 1 is low, ce 2 is high and ce 3 is low. when ce is high, ce 1 is high or ce 2 is low or ce 3 is high. 31. the ignore clock edge or stall cycle (clock 3) illustrated cen being used to create a pause. a write is not performed during this cycle.
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 25 of 33 figure 7. zz mode timing [32, 33] switching waveforms (continued) t zz i supply clk zz t zzrec all inputs (except zz) don?t care i ddzz t zzi t rzzi outputs (q) high-z deselect or read only notes 32. device must be deselected when entering zz mode. see cycle descr iption table for all possible signal conditions to deselect the device. 33. i/os are in high z when exiting zz sleep mode.
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 26 of 33 ordering code definitions ordering information cypress offers other versions of this type of product in many different configurations an d features. the below table contains o nly the list of parts that are currently av ailable.for a complete listing of all options, visit the cypress website at www.cypress.com and refer to the product summary page at http://www.cypress.com/products or contact your local sales representative. cypress maintains a worldwide network of offices, solution cent ers, manufacturer?s representativ es and distributors. to find th e office closest to you, visit us at http://www.cypress.com/ go/datasheet/offices . speed (mhz) ordering code package diagram part and package type operating range 166 CY7C1354CV25-166AXC 51-85050 100-pin tqfp (14 20 1.4 mm) pb-free commercial cy7c1356cv25-166axc cy7c1354cv25-166bzc 51-85180 165-ball fbga (13 15 1.4 mm) 200 cy7c1354cv25-200axc 51-85050 100-pin tqfp (14 20 1.4 mm) pb-free commercial temperature range: c = commercial pb-free package type: xx = a or bz a = 100-pin tqfp bz = 165-ball fbga speed grade: xxx = 166 mhz or 200 mhz v25 = 2.5 v process technology ? 90 nm 135x = 1354 or 1356 1354 = pl, 256 kb 36 (9 mb) 1356 = pl, 512 kb 18 (9 mb) technology code: c = cmos marketing code: 7 = sram company id: cy = cypress c 135x c - xxx x v25 c cy 7 xx
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 27 of 33 package diagrams figure 8. 100-pin tqfp (14 20 1.4 mm) a100ra package outline, 51-85050 51-85050 *d
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 28 of 33 figure 9. 119-ball pbga (14 22 2.4 mm) bg119 package outline, 51-85115 package diagrams (continued) 51-85115 *d
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 29 of 33 figure 10. 165-ball fbga (13 15 1.4 mm) bb165d/b w165d (0.5 ball diameter) package outline, 51-85180 package diagrams (continued) 51-85180 *f
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 30 of 33 acronyms document conventions units of measure acronym description bga ball grid array ce chip enable cen clock enable cmos complementary metal oxide semiconductor eia electronic industries alliance fbga fine-pitch ball grid array i/o input/output jedec joint electron devices engineering council jtag joint test action group lsb least significant bit msb most significant bit nobl no bus latency oe output enable sram static random access memory tap test access port tck test clock tdi test data-in tdo test data-out tms test mode select tqfp thin quad flat pack ttl transistor-transistor logic we write enable symbol unit of measure c degree celsius mhz megahertz a microampere ma milliampere mm millimeter ms millisecond mv millivolt ns nanosecond ? ohm % percent pf picofarad vvolt wwatt
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 31 of 33 document history page document title: cy7c1354cv25/cy7c1356cv25, 9-mbit (256 k 36/512 k 18) pipelined s ram with nobl? architecture document number: 38-05537 rev. ecn no. issue date orig. of change description of change ** 242032 see ecn rkf new data sheet *a 278969 see ecn rkf changed boundary scan order to match the b rev of these devices *b 284929 see ecn rkf / vbl included dc characteristics table changed isb1 and isb3 from dc characteristic table as follows: isb1: 225 mhz -> 130 ma, 200 mhz -> 120 ma, 167 mhz -> 110 ma isb3: 225 mhz -> 120 ma, 200 mhz -> 110 ma, 167 mhz -> 100 ma changed iddzz to 50ma. added bg and bz pkg lead-free part numbers to ordering info section. *c 323636 see ecn pci changed frequency of 225 mhz into 250 mhz added t cyc of 4.0 ns for 250 mhz changed ? ja and ? jc for tqfp package from 25 and 9 c/w to 29.41 and 6.13 c/w respectively changed ? ja and ? jc for bga package from 25 and 6 c/w to 34.1 and 14.0 c/w respectively changed ? ja and ? jc for fbga package from 27 and 6 c/w to 16.8 and 3.0 c/w respectively modified address expansion as per jedec standard removed comment of lead-free bg and bz packages availability *d 332879 see ecn pci unshaded 200 and 166 mhz speed bin in the ac/dc table and selection guide added address expansion pins in the pin definition table removed description of extest ou tput bus tri-state on page # 11 modified v ol , v oh test conditions updated ordering information table *e 357258 see ecn pci changed from preliminary to final changed i sb2 from 35 to 40 ma removed shading on 250mhz speed bin in selection guide and ac/dc table updated ordering information table *f 377095 see ecn pci modified test condition in note# 15 from v ddq < v dd to v ddq ? v dd *g 408298 see ecn rxu changed address of cypress semiconductor corporation on page# 1 from ?3901 north first street? to ?198 champion court? changed three-state to tri-state. modified ?input load? to ?input leakag e current except zz and mode? in the electrical characteristics table. replaced package name column with package diagram in the ordering information table. updated the ordering information table. *h 501793 see ecn vkn added the maximum rating for supply voltage on v ddq relative to gnd changed t th , t tl from 25 ns to 20 ns and t tdov from 5 ns to 10 ns in tap ac switching characteristics table. updated the ordering information table. *i 2898958 03/25/10 njy removed inactive parts from the ordering information table. updated package diagrams. *j 3033272 09/19/2010 njy added ordering code definitions added acronyms and units of measure minor edits and updated in new template *k 3052726 10/08/10 njy removed pruned part cy7c1356c v25-200axc from the ordering information table. *l 3385314 09/29/2011 prit updated package diagrams .
cy7c1354cv25 cy7c1356cv25 document number: 38-05537 rev. *m page 32 of 33 *m 3754566 09/25/2012 prit updated package diagrams (spec 51-85115 (changed revision from *c to *d), spec 51-85180 (changed revision from *c to *f)). document history page (continued) document title: cy7c1354cv25/cy7c1356cv25, 9-mbit (256 k 36/512 k 18) pipelined s ram with nobl? architecture document number: 38-05537 rev. ecn no. issue date orig. of change description of change
document number: 38-05537 rev. *m revised september 25, 2012 page 33 of 33 nobl and no bus latency are trademarks of cypress semiconductor corporation. zbt is a trademark of integrated device technology , inc. all products and company names mentioned in this document may be the trademarks of their respective holders. cy7c1354cv25 cy7c1356cv25 ? cypress semiconductor corporation, 2004-2012. the information contained herein is subject to change without notice. cypress s emiconductor corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a cypress product. nor does it convey or imply any license under patent or other rights. cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement wi th cypress. furthermore, cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. the inclusion of cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies cypress against all charges. any source code (software and/or firmware) is owned by cypress semiconductor corporation (cypress) and is protected by and subj ect to worldwide patent protection (united states and foreign), united states copyright laws and internatio nal treaty provisions. cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the cypress source code and derivative works for the sole purpose of creating custom software and or firmware in su pport of licensee product to be used only in conjunction with a cypress integrated circuit as specified in the applicable agreement. any reproduction, modification, translation, compilation, or repre sentation of this source code except as specified above is prohibited without the express written permission of cypress. disclaimer: cypress makes no warranty of any kind, express or implied, with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. cypress reserves the right to make changes without further notice to t he materials described herein. cypress does not assume any liability arising out of the application or use of any product or circuit described herein. cypress does not authori ze its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. the inclusion of cypress? prod uct in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies cypress against all charges. use may be limited by and subject to the applicable cypress software license agreement. sales, solutions, and legal information worldwide sales and design support cypress maintains a worldwide network of offices, solution center s, manufacturer?s representatives, and distributors. to find t he office closest to you, visit us at cypress locations . products automotive cypress.co m/go/automotive clocks & buffers cypress.com/go/clocks interface cypress. com/go/interface lighting & power control cypress.com/go/powerpsoc cypress.com/go/plc memory cypress.com/go/memory optical & image sensing cypress.com/go/image psoc cypress.com/go/psoc touch sensing cyp ress.com/go/touch usb controllers cypress.com/go/usb wireless/rf cypress.com/go/wireless psoc solutions psoc.cypress.com/solutions psoc 1 | psoc 3 | psoc 5

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