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32mx72 bits pc133 sdram unbuffered dimm based on 32mx8 sdram with lvttl, 4 banks & 8k refresh this document is a general product description and is subject to change without notice. hyundai electronics does not assume any responsibility for use of circuits described. no patent licenses are implied. rev. 1.2/feb.01 hym72v32736at8 series description the hyundai hym72v32736at8 series are 32mx72bits ecc synchronous dram modules. the modules are composed of nine 32mx8bits cmos synchronous drams in 400mil 54pin tsop-ii package, one 2kbit eeprom in 8pin tssop package on a 168pin glass-epoxy printed circuit board. one 0.22uf and one 0.0022uf decoupling capacitors per each sdram are mounted on the pcb. the hyundai hym72v32736at8 series are dual in-line memory modules suitable for easy interchange and addition of 256mbytes memory. the hyundai hym72v32736at8 series are fully synchronous operation referenced to the positive edge of the clock . all inputs and outputs are synchronized with the rising edge of the clock input. the data paths are internally pipelined to achieve very high bandwidth. features ? pc133/pc100mhz support ? 168pin sdram unbuffered dimm ? serial presence detect with eeprom ? 1.25(31.75mm) height pcb with single sided com- ponents ? single 3.3 0.3v power supply ? all device pins are compatible with lvttl interface ? data mask function by dqm ? sdram internal banks : four banks ? module bank : one physical bank ? auto refresh and self refresh ? 8192 refresh cycles / 64ms ? programmable burst length and burst type - 1, 2, 4 or 8 or full page for sequential burst - 1, 2, 4 or 8 for interleave burst ? programmable cas latency ; 2, 3 clocks ordering information part no. clock frequency internal bank ref. power sdram package plating HYM72V32736AT8-H 133mhz 4 banks 8k normal tsop-ii gold
pc133 sdram unbuffered dimm rev. 1.2/feb.01 2 hym72v32736at8 series pin description pin pin name description ck0~ck3 clock inputs the system clock input. all other inputs are registered to the sdram on the rising edge of clk cke0 clock enable controls internal clock signal and when deactivated, the sdram will be one of the states among power down, suspend or self refresh /s0, /s2 chip select enables or disables all inputs except ck, cke and dqm ba0, ba1 sdram bank address selects bank to be activated during /ras activity selects bank to be read/written during /cas activity a0 ~ a12 address row address : ra0 ~ ra12, column address : ca0 ~ ca9 auto-precharge flag : a10 /ras, /cas, /we row address strobe, column address strobe, write enable /ras, /cas and /we define the operation refer function truth table for details dqm0~dqm7 data input/output mask controls output buffers in read mode and masks input data in write mode dq0 ~ dq63 data input/output multiplexed data input / output pin cb0 ~ cb7 check bit input/output check bits for ecc vcc power supply (3.3v) power supply for internal circuits and input buffers v ss ground ground scl spd clock input serial presence detect clock input sda spd data input/output serial presence detect data input/output sa0~2 spd address input serial presence detect address input wp write protect for spd write protect for serial presence detect on dimm nc no connection no connection
pc133 sdram unbuffered dimm rev. 1.2/feb.01 3 hym72v32736at8 series pin assignments front side back side front side back side pin no. name pin no. name pin no. name pin no. name 1 vss 85 vss 41 vcc 125 *ck1 2 dq0 86 dq32 42 ck0 126 a12 3 dq1 87 dq33 43 vss 127 vss 4 dq2 88 dq34 44 nc 128 cke0 5 dq3 89 dq35 45 /s2 129 nc 6 vcc 90 vcc 46 dqm2 130 dqm6 7 dq4 91 dq36 47 dqm3 131 dqm7 8 dq5 92 dq37 48 nc 132 nc 9 dq6 93 dq38 49 vcc 133 vcc 10 dq7 94 dq39 50 nc 134 nc architecture key 51 nc 135 nc 52 cb2 136 cb6 11 dq8 95 dq40 53 cb3 137 cb7 12 vss 96 vss 54 vss 138 vss 13 dq9 97 dq41 55 dq16 139 dq48 14 dq10 98 dq42 56 dq17 140 dq49 15 dq11 99 dq43 57 dq18 141 dq50 16 dq12 100 dq44 58 dq19 142 dq51 17 dq13 101 dq45 59 vcc 143 vcc 18 vcc 102 vcc 60 dq20 144 dq52 19 dq14 103 dq46 61 nc 145 nc 20 dq15 104 dq47 62 nc 146 nc 21 cb0 105 cb4 63 nc 147 nc 22 cb1 106 cb5 64 vss 148 vss 23 vss 107 vss 65 dq21 149 dq53 24 nc 108 nc 66 dq22 150 dq54 25 nc 109 nc 67 dq23 151 dq55 26 vcc 110 vcc 68 vcc 152 vcc 27 /we 111 /cas 69 dq24 153 dq56 28 dqm0 112 dqm4 70 dq25 154 dq57 29 dqm1 113 dqm5 71 dq26 155 dq58 30 /s0 114 nc 72 dq27 156 dq59 31 nc 115 /ras 73 vcc 157 vcc 32 vss 116 vss 74 dq28 158 dq60 33 a0 117 a1 75 dq29 159 dq61 34 a2 118 a3 76 dq30 160 dq62 35 a4 119 a5 77 dq31 161 dq63 36 a6 120 a7 78 vss 162 vss 37 a8 121 a9 79 ck2 163 *ck3 38 a10/ap 122 ba0 80 nc 164 nc 39 ba1 123 a11 81 wp 165 sa0 40 vcc 124 vcc 82 sda 166 sa1 voltage key 83 scl 167 sa2 84 vcc 168 vcc note : * ck1, ck3 are connected with termination r/c (refer to the block diagram)
pc133 sdram unbuffered dimm rev. 1.2/feb.01 4 hym72v32736at8 series block diagram note : 1. the serial resistor values of dqs are 10ohms 2. the padding capacitance of termination r/c for ck1,ck3 is 10pf
pc133 sdram unbuffered dimm rev. 1.2/feb.01 5 hym72v32736at8 series serial presence detect byte number function description function value note -h -h byte0 # of bytes written into serial memory at module manufacturer 128 bytes 80h byte1 total # of bytes of spd memory device 256 bytes 08h byte2 fundamental memory type sdram 04h byte3 # of row addresses on this assembly 13 0dh 1 byte4 # of column addresses on this assembly 10 0ah byte5 # of module banks on this assembly 1 bank 01h byte6 data width of this assembly 72 bits 48h byte7 data width of this assembly (continued) - 00h byte8 voltage interface standard of this assembly lvttl 01h byte9 sdram cycle time @/cas latency=3 7.5ns 75h byte10 access time from clock @/cas latency=3 5.4ns 54h byte11 dimm configuration type ecc 02h byte12 refresh rate/type 7.8125us / self refresh supported 82h byte13 primary sdram width x8 08h byte14 error checking sdram width x8 08h byte15 minimum clock delay back to back random column address tccd = 1 clk 01h byte16 burst lenth supported 1,2,4,8,full page 8fh 2 byte17 # of banks on each sdram device 4 banks 04h byte18 sdram device attributes, /cas lataency 3 04h byte19 sdram device attributes, /cs lataency /cs latency=0 01h byte20 sdram device attributes, /we lataency /we latency=0 01h byte21 sdram module attributes neither buffered nor registered 00h byte22 sdram device attributes, general +/- 10% voltage tolerence, burst read single bit write, precharge all, auto precharge, early ras precharge 0eh byte23 sdram cycle time @/cas latency=2 - 00h byte24 access time from clock @/cas latency=2 - 00h byte25 sdram cycle time @/cas latency=1 - 00h byte26 access time from clock @/cas latency=1 - 00h byte27 minimum row precharge time (trp) 20ns 14h byte28 minimum row active to row active delay (trrd) 15ns 0fh byte29 minimum /ras to /cas delay (trcd) 20ns 14h byte30 minimum /ras pulse width (tras) 45ns 2dh byte31 module bank density 256mb 40h byte32 command and address signal input setup time 1.5ns 15h byte33 command and address signal input hold time 0.8ns 08h byte34 data signal input setup time 1.5ns 15h byte35 data signal input hold time 0.8ns 08h byte36 ~61 superset information (may be used in future) - 00h byte62 spd revision intel spd1.2b 12h 3, 8 byte63 checksum for byte 0~62 - e2h byte64 manufacturer jedec id code hyundai jeded id b1h byte65 ~71 ....manufacturer jedec id code unused ffh byte72 manufacturing location hei (korea area) hea (united states area) heu (europe area) hej (japan area) asia area 0*h 1*h 2*h 3*h 4*h 10
pc133 sdram unbuffered dimm rev. 1.2/feb.01 6 hym72v32736at8 series byte number function description function value note -h -h byte73 manufacturer?s part number (component) 7 (sdram) 37h 4, 5 byte74 manufacturer?s part number (256mb based) 2 31h 4, 5 byte75 manufacturer?s part number (voltage interface) v (3.3v, lvttl) 56h 4, 5 byte76 manufacturer?s part number (memory width) 3 33h 4, 5 byte77 ....manufacturer?s part number (memory width) 2 32h 4, 5 byte78 manufacturer?s part number (data width) 7 37h 4, 5 byte79 ....manufacturer?s part number (data width) 3 33h 4, 5 byte80 manufacturer?s part number (refresh, sdram bank) 6 (8k refresh, 4banks) 36h 4, 5 byte81 manufacturer?s part number (generation) a 41h 4,5 byte82 manufacturer?s part number (package type) t 54h 4, 5 byte83 manufacturer?s part number (component configuration) 8 (x8 based) 48h 4, 5 byte84 manufacturer?s part number (hyphent) - (hyphen) 2dh 4, 5 byte85 manufacturer?s part number (min. cycle time) h 48h 4, 5 byte86 ~90 manufacturer?s part number blanks 20h 4, 5 byte91 revision code (for component) process code - 4, 6 byte92 ....revision code (for pcb) process code - 4, 6 byte93 manufacturing date work week - 3, 6 byte94 ....manufacturing date year - 3, 6 byte95 ~98 assembly serial number - - 6 byte99 ~125 manufacturer specific data (may be used in future) none 00h byte126 reserved refer to note9 64h 7, 8, 9 byte127 intel specification details for 100mhz support refer to note7 f5h 7, 8, 9 byte128 ~256 unused storage locations - 00h continued note : 1. the bank address is excluded 2. 1, 2, 4, 8 for interleave burst type 3. bcd adopted 4. ascii adopted 5. basically hyundai writes part no. except for ?hym? in byte 73~90 to use the limited 18 bytes from byte 73 to byte 90 6. not fixed but dependent 7. ck0, ck2 connected to dimm, tbd junction temp, cl2(3) support, intel defined concurrent auto precharge suport 8. refer to the most recent intel and jedec spd specification 9. these values are applied to pc100 applications only per intel pc sdram specification 10. refer to hei web site
pc133 sdram unbuffered dimm rev. 1.2/feb.01 7 hym72v32736at8 series absolute maximum ratings note : operation at above absolute maximum rating can adversely affect device reliability. dc operating condition (t a =0 to 70 c ) note : 1.all voltages are referenced to v ss = 0v 2.v ih (max) is acceptable 5.6v ac pulse width with <=3ns of duration. 3.v il (min) is acceptable -2.0v ac pulse width with <=3ns of duration. ac operating test condition (t a =0 to 70 c , v dd =3.3 0.3v, v ss =0v) note : 1.output load to measure access times is equivalent to two ttl gates and one capacitor (50pf). for details, refer to ac/dc outpu t load circuit parameter symbol rating unit ambient temperature t a 0 ~ 70 c storage temperature t stg -55 ~ 125 c voltage on any pin relative to v ss v in , v out -1.0 ~ 4.6 v voltage on v dd relative to v ss v dd, v ddq -1.0 ~ 4.6 v short circuit output current i os 50 ma power dissipation p d 1 w soldering temperature time t solder 260 10 c sec parameter symbol min typ max unit note power supply voltage v dd , v ddq 3.0 3.3 3.6 v 1 input high voltage v ih 2.0 3.0 v ddq + 0.3 v 1,2 input low voltage v il -0.3 0 0.8 v 1,3 parameter symbol value unit note ac input high / low level voltage v ih / v il 2.4/0.4 v input timing measurement reference level voltage vtrip 1.4 v input rise / fall time tr / tf 1 ns output timing measurement reference level voltage voutref 1.4 v output load capacitance for access time measurement c l 50 pf 1
pc133 sdram unbuffered dimm rev. 1.2/feb.01 8 hym72v32736at8 series capacitance (ta=25 c , f=1mhz) output load circuit parameter pin symbol -h unit min max input capacitance ck0, ck2 c i1 25 40 pf cke0 c i2 35 55 pf /s0, /s2 c i3 25 40 pf a0~12, ba0, ba1 c i4 35 55 pf /ras, /cas, /we c i5 35 55 pf dqm0~dqm7 ci 6 10 25 pf data input / output capacitance dq0 ~ dq63 c i/o 6 20 pf vtt =1.4v rt=250 w 50 pf output 50 pf output dc output load circuit ac output load circuit
pc133 sdram unbuffered dimm rev. 1.2/feb.01 9 hym72v32736at8 series dc characteristics i (ta=0 to 70 c , v dd =3.3 0.3v) note : 1.v in = 0 to 3.6v, all other pins are not tested under v in =0v 2.d out is disabled, v out =0 to 3.6 dc characteristics ii note : 1. i dd1 and i dd4 depend on output loading and cycle rates. specified values are measured with the output open 2. min. of trrc (refresh ras cycle time) is shown at ac characteristics ii parameter symbol min. max unit note input leakage current i li -16 16 ua 1 output leakage current i lo -1 1 ua 2 output high voltage v oh 2.4 - v i oh = -4ma output low voltage v ol - 0.4 v i ol = +4ma parameter symbol test condition speed unit note -h operating current i dd1 burst length=1, one bank active t rc 3 t rc (min), i ol =0ma 990 ma 1 precharge standby current in power down mode i dd2p cke v il (max), t ck = min 18 ma i dd2ps cke v il (max), t ck = 18 precharge standby current in non power down mode i dd2n cke 3 v ih (min), cs 3 v ih (min), t ck = min input signals are changed one time during 2clks. all other pins 3 v dd -0.2v or 0.2v 180 ma i dd2ns cke 3 v ih (min), t ck = input signals are stable. 90 active standby current in power down mode i dd3p cke v il (max), t ck = min 63 ma i dd3ps cke v il (max), t ck = 63 active standby current in non power down mode i dd3n cke 3 v ih (min), cs 3 v ih (min), t ck = min input signals are changed one time during 2clks. all other pins 3 v dd -0.2v or 0.2v 360 ma i dd3ns cke 3 v ih (min), t ck = input signals are stable. 360 burst mode operating current i dd4 t ck 3 t ck (min), i ol =0ma all banks active 1080 ma 1 auto refresh current i dd5 t rrc 3 t rrc (min), all banks active 1980 ma 2 self refresh current i dd6 cke 0.2v 36 ma
pc133 sdram unbuffered dimm rev. 1.2/feb.01 10 hym72v32736at8 series ac characteristics i (ac operating conditions unless otherwise noted) note : 1.assume tr / tf (input rise and fall time ) is 1ns if tr & tf > 1ns, then [(tr+tf)/2-1]ns should be added to the parameter 2.access times to be measured with input signals of 1v/ns edge rate, from 0.8v to 2.0v if tr > 1ns, then (tr/2-0.5)ns should be added to the parameter parameter symbol -h unit note min max system clock cycle time cas latency = 3 tck3 7.5 1000 ns clock high pulse width tchw 2.5 - ns 1 clock low pulse width tclw 2.5 - ns 1 access time from clock cas latency = 3 tac3 - 5.4 ns 2 data-out hold time toh 2.7 - ns data-input setup time tds 1.5 - ns 1 data-input hold time tdh 0.8 - ns 1 address setup time tas 1.5 - ns 1 address hold time tah 0.8 - ns 1 cke setup time tcks 1.5 - ns 1 cke hold time tckh 0.8 - ns 1 command setup time tcs 1.5 - ns 1 command hold time tch 0.8 - ns 1 clk to data output in low-z time tolz 1 - ns clk to data output in high-z time cas latency = 3 tohz3 2.7 5.4 ns
pc133 sdram unbuffered dimm rev. 1.2/feb.01 11 hym72v32736at8 series ac characteristics ii note : 1. a new command can be given trrc after self refresh exit parameter symbol -h unit note min max ras cycle time operation trc 65 - ns auto refresh trrc 65 - ns ras to cas delay trcd 20 - ns ras active time tras 45 100k ns ras precharge time trp 20 - ns ras to ras bank active delay trrd 15 - ns cas to cas delay tccd 1 - clk write command to data-in delay twtl 0 - clk data-in to precharge command tdpl 2 - clk data-in to active command tdal 5 - clk dqm to data-out hi-z tdqz 2 - clk dqm to data-in mask tdqm 0 - clk mrs to new command tmrd 2 - clk precharge to data output hi-z cas latency = 3 tproz3 3 - clk power down exit time tpde 1 - clk self refresh exit time tsre 1 - clk 1 refresh time tref - 64 ms
pc133 sdram unbuffered dimm rev. 1.2/feb.01 12 hym72v32736at8 series device operating option table HYM72V32736AT8-H command truth table note : 1. exiting self refresh occurs by asynchronously bringing cke from low to high 2. x = don t care, h = logic high, l = logic low. ba =bank address, ra = row address, ca = column address, opcode = operand code, nop = no operation cas latency trcd tras trc trp tac toh 133mhz(7.5ns) 3clks 3clks 6clks 9clks 3clks 5.4ns 2.7ns 125mhz(8ns) 3clks 3clks 6clks 9clks 3clks 6ns 3ns 100mhz(10ns) 2clks 2clks 5clks 7clks 2clks 6ns 3ns command cken-1 cken cs ras cas we dqm addr a10/ ap ba note mode register set h x l l l l x op code no operation h x h x x x x x l h h h bank active h x l l h h x ra v read h x l h l h x ca l v read with autoprecharge h write h x l h l l x ca l v write with autoprecharge h precharge all banks h x l l h l x x h x precharge selected bank l v burst stop h x l h h l x x dqm h x v x auto refresh h h l l l h x x burst-read-single- write h x l l l h x a9 pin high (other pins op code) self refresh 1 entry h l l l l h x x exit l h h x x x x l h h h precharge power down entry h l h x x x x x l h h h exit l h h x x x x l h h h clock suspend entry h l h x x x x x l v v v exit l h x x
pc133 sdram unbuffered dimm rev. 1.2/feb.01 13 hym72v32736at8 series package demension

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