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1 features ? compatible with mcs-51 ? products 4k bytes of user programmable quickflash memory 2.7v to 5.5v operating range fully static operation: 0 hz to 16 mhz three-level program memory lock 128 x 8-bit internal ram 32 programmable i/o lines two 16-bit timer/counters six interrupt sources programmable serial channel low-power idle and power-down modes description the at87lv51 is a low-voltage, high-performance cmos 8-bit microcontroller with 4k bytes of quickflash one-time programmable (otp) read only memory. the device is manufactured using atmel?s high-density nonvolatile memory technology and is compatible with the industry standard mcs-51 instruction set and pinout. the on-chip quickflash allows the program memory to be user programmed by a conven- tional nonvolatile memory programmer. by combining a versatile 8-bit cpu with quickflash on a monolithic chip, the atmel at87lv51 is a powerful microcontroller that provides a highly flexible and cost-effective solution to many embedded control applications. pdip 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 p1.0 p1.1 p1.2 p1.3 p1.4 p1.5 p1.6 p1.7 rst (rxd) p3.0 (txd) p3.1 (int0) p3.2 (int1) p3.3 (t0) p3.4 (t1) p3.5 (wr) p3.6 (rd) p3.7 xtal2 xtal1 gnd vcc p0.0 (ad0) p0.1 (ad1) p0.2 (ad2) p0.3 (ad3) p0.4 (ad4) p0.5 (ad5) p0.6 (ad6) p0.7 (ad7) ea/vpp ale/prog psen p2.7 (a15) p2.6 (a14) p2.5 (a13) p2.4 (a12) p2.3 (a11) p2.2 (a10) p2.1 (a9) p2.0 (a8) tqfp 1 2 3 4 5 6 7 8 9 10 11 33 32 31 30 29 28 27 26 25 24 23 p1.5 p1.6 p1.7 rst (rxd) p3.0 nc (txd) p3.1 (int0) p3.2 (int1) p3.3 (t0) p3.4 (t1) p3.5 p0.4 (ad4) p0.5 (ad5) p0.6 (ad6) p0.7 (ad7) eavpp nc ale/prog psen p2.7 (a15) p2.6 (a14) p2.5 (a13) 44 43 42 41 40 39 38 37 36 35 34 12 13 14 15 16 17 18 19 20 21 22 (wr) p3.6 (rd) p3.7 xtal2 xtal1 gnd gnd (a8) p2.0 (a9) p2.1 (a10) p2.2 (a11) p2.3 (a12) p2.4 p1.4 p1.3 p1.2 p1.1 p1.0 nc vcc p0.0 (ad0) p0.1 (ad1) p0.2 (ad2) p0.3 (ad3) plcc 7 8 9 10 11 12 13 14 15 16 17 39 38 37 36 35 34 33 32 31 30 29 p1.5 p1.6 p1.7 rst (rxd) p3.0 nc (txd) p3.1 (int0) p3.2 (int1) p3.3 (t0) p3.4 (t1) p3.5 p0.4 (ad4) p0.5 (ad5) p0.6 (ad6) p0.7 (ad7) ea/vpp nc ale/prog psen p2.7 (a15) p2.6 (a14) p2.5 (a13) 6 5 4 3 2 1 44 43 42 41 40 18 19 20 21 22 23 24 25 26 27 28 (wr) p3.6 (rd) p3.7 xtal2 xtal1 gnd nc (a8) p2.0 (a9) p2.1 (a10) p2.2 (a11) p2.3 (a12) p2.4 p1.4 p1.3 p1.2 p1.1 p1.0 nc vcc p0.0 (ad0) p0.1 (ad1) p0.2 (ad2) p0.3 (ad3) 8-bit microcontroller with 4k bytes quickflash ? at87lv51 preliminary pin configurations rev. 1602a?04/00 (continued)
at87lv51 2 block diagram
at87lv51 3 the at87lv51 provides the following standard features: 4k bytes of quickflash otp program memory, 128 bytes of ram, 32 i/o lines, two 16-bit timer/counters, a five-vec- tor, 2-level interrupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry. in addition, the at87lv51 is designed with static logic for operation down to zero frequency and supports two software-selectable power-saving modes. the idle mode stops the cpu while allowing the ram, timer/counters, serial port and interrupt system to continue functioning. the power-down mode saves the ram contents but freezes the oscillator disabling all other chip functions until the next hardware reset. pin description vcc supply voltage. gnd ground. port 0 port 0 is an 8-bit open drain bidirectional i/o port. as an output port, each pin can sink eight ttl inputs. when 1s are written to port 0 pins, the pins can be used as high- impedance inputs. port 0 may also be configured to be the multiplexed low- order address/data bus during accesses to external pro- gram and data memory. in this mode, p0 has internal pull-ups. port 0 also receives the code bytes during quickflash pro- gramming and outputs the code bytes during program verification. external pull-ups are required during program verification. port 1 port 1 is an 8-bit bidirectional i/o port with internal pull-ups. the port 1 output buffers can sink/source four ttl inputs. when 1s are written to port 1 pins they are pulled high by the internal pull-ups and can be used as inputs. as inputs, port 1 pins that are externally being pulled low will source current (i il ) because of the internal pull-ups. port 1 also receives the low-order address bytes during quickflash programming and verification. port 2 port 2 is an 8-bit bidirectional i/o port with internal pull-ups. the port 2 output buffers can sink/source four ttl inputs. when 1s are written to port 2 pins they are pulled high by the internal pull-ups and can be used as inputs. as inputs, port 2 pins that are externally being pulled low will source current (i il ) because of the internal pull-ups. port 2 emits the high-order address byte during fetches from external program memory and during accesses to external data memory that use 16-bit addresses (movx @ dptr). in this application, it uses strong internal pull-ups when emitting 1s. during accesses to external data mem- ory that use 8-bit addresses (movx @ ri), port 2 emits the contents of the p2 special function register. port 2 also receives the high-order address bits and some control signals during quickflash programming and verification. port 3 port 3 is an 8-bit bidirectional i/o port with internal pull-ups. the port 3 output buffers can sink/source four ttl inputs. when 1s are written to port 3 pins they are pulled high by the internal pull-ups and can be used as inputs. as inputs, port 3 pins that are externally being pulled low will source current (i il ) because of the pull-ups. port 3 also serves the functions of various special features of the at87lv51 as listed below: port 3 also receives some control signals for quickflash programming and verification. rst reset input. a high on this pin for two machine cycles while the oscillator is running resets the device. ale/prog address latch enable output pulse for latching the low byte of the address during accesses to external memory. this pin is also the program pulse input (prog ) during quick- flash programming. in normal operation ale is emitted at a constant rate of 1/6 the oscillator frequency and may be used for external tim- ing or clocking purposes. note, however, that one ale pulse is skipped during each access to external data memory. port pin alternate functions p3.0 rxd (serial input port) p3.1 txd (serial output port) p3.2 int0 (external interrupt 0) p3.3 int1 (external interrupt 1) p3.4 t0 (timer 0 external input) p3.5 t1 (timer 1 external input) p3.6 wr (external data memory write strobe) p3.7 rd (external data memory read strobe)
at87lv51 4 psen program store enable is the read strobe to external pro- gram memory. when the at87lv51 is executing code from external pro- gram memory, psen is activated twice each machine cycle, except that two psen activations are skipped during each access to external data memory. ea /vpp external access enable. ea must be strapped to gnd in order to enable the device to fetch code from external pro- gram memory locations starting at 0000h, up to ffffh. note, however, that if lock bit 1 is programmed, ea will be internally latched on reset. ea should be strapped to vcc for internal program executions. this pin also receives the 12-volt programming enable volt- age (vpp) during quickflash programming. xtal1 input to the inverting oscillator amplifier and input to the internal clock operating circuit. xtal2 output from the inverting oscillator amplifier. special function registers a map of the on-chip memory area called the special func- tion register (sfr) space is shown in table 1. table 1. at87lv51 sfr map and reset values 0f8h 0ffh 0f0h b 00000000 0f7h 0e8h 0efh 0e0h acc 00000000 0e7h 0d8h 0dfh 0d0h psw 00000000 0d7h 0c8h 0cfh 0c0h 0c7h 0b8h ip xx000000 0bfh 0b0h p3 11111111 0b7h 0a8h ie 0x000000 0afh 0a0h p2 11111111 0a7h 98h scon 00000000 sbuf xxxxxxxx 9fh 90h p1 11111111 97h 88h tcon 00000000 tmod 00000000 tl0 00000000 tl1 00000000 th0 00000000 th1 00000000 8fh 80h p0 11111111 sp 00000111 dpl 00000000 dph 00000000 pcon 0xxx0000 87h
at87lv51 5 note that not all of the addresses are occupied, and unoccupied addresses may not be implemented on the chip. read accesses to these addresses will, in general, return random data and write accesses will have an inde- terminate effect. user software should not write 1s to these unlisted loca- tions, since they may be used in future products to invoke new features. in that case, the reset or inactive values of the new bits will always be 0. timer 0 and 1 timer 0 and timer 1 in the at87lv51 operate the same way as timer 0 and timer 1 in the at89c51. oscillator characteristics xtal1 and xtal2 are the input and output, respectively, of an inverting amplifier, which can be configured for use as an on-chip oscillator as shown in figure 1. either a quartz crystal or ceramic resonator may be used. to drive the device from an external clock source, xtal2 should be left unconnected while xtal1 is driven as shown in figure 2. there are no requirements on the duty cycle of the external clock signal, since the input to the internal clocking circuitry is through a divide-by-two flip-flop, but minimum and maxi- mum voltage high and low time specifications must be observed. figure 1. oscillator connections note: c1, c2 = 30 pf 10 pf for crystals = 40 pf 10 pf for ceramic resonators figure 2. external clock drive configuration idle mode in idle mode, the cpu puts itself to sleep while all the on- chip peripherals remain active. the mode is invoked by software. the content of the on-chip ram and all the spe- cial function registers remains unchanged during this mode. the idle mode can be terminated by any enabled interrupt or by a hardware reset. it should be noted that when idle is terminated by a hard- ware reset, the device normally resumes program execution from where it left off, up to two machine cycles before the internal reset algorithm takes control. on-chip hardware inhibits access to internal ram in this event, but access to the port pins is not inhibited. to eliminate the possibility of an unexpected write to a port pin when idle is terminated by reset, the instruction following the one that invokes idle should not be one that writes to a port pin or to external memory. power-down mode in power-down mode, the oscillator is stopped and the instruction that invokes power-down is the last instruction executed. the on-chip ram and special function registers retain their values until the power-down mode is termi- nated. the only exit from power-down is a hardware reset. reset redefines the sfrs but does not change the on-chip ram. the reset should not be activated before v cc is restored to its normal operating level and must be held active long enough to allow the oscillator to restart and stabilize. c2 xtal2 gnd xtal1 c1 xtal2 xtal1 gnd nc external oscillator signal
at87lv51 6 status of external pins during idle and power-down modes program memory lock bits the at87lv51 has three lock bits that can be left unpro- grammed (u) or can be programmed (p) to obtain the additional features listed in the table below: lock bit protection modes when lock bit 1 is programmed, the logic level at the ea pin is sampled and latched during reset. if the device is pow- ered up without a reset, the latch initializes to a random value, and holds that value until reset is activated. it is nec- essary that the latched value of ea be in agreement with the current logic level at that pin in order for the device to function properly. programming the quickflash the at87lv51 is shipped with the on-chip quickflash memory array ready to be programmed. the programming interface needs a high-voltage (12-volt) program enable signal and is compatible with conventional third-party quickflash or eprom programmers. the at87lv52 code memory array is programmed byte- by-byte. programming algorithm: before programming the at87lv51, the address, data and control signals should be set up according to the quickflash programming modes table and figure 3 and figure 4. to program the at87lv51, the following sequence should be followed: 1. input the desired memory location on the address lines. 2. input the appropriate data byte on the data lines. 3. activate the correct combination of control signals. 4. raise ea /v pp to 12v. 5. pulse ale/prog once to program a byte in the quickflash array or the lock bits. the byte-write cycle is self-timed and typically takes no more than 1.5 ms. repeat steps 1 through 5, changing the address and data for the entire array or until the end of the object file is reached. data polling: the at87lv51 features data polling to indi- cate the end of a write cycle. during a write cycle, an attempted read of the last byte written will result in the com- plement of the written data on p0.7. once the write cycle has been completed, true data is valid on all outputs, and the next cycle may begin. data polling may begin any time after a write cycle has been initiated. ready/busy : the progress of byte programming can also be monitored by the rdy/bsy output signal. p3.4 is pulled low after ale goes high during programming to indicate busy. p3.4 is pulled high again when programming is done to indicate ready. program verify: if lock bits lb1 and lb2 have not been programmed, the programmed code data can be read back via the address and data lines for verification. the lock bits cannot be verified directly. verification of the lock bits is achieved by observing that their features are enabled. reading the signature bytes: the signature bytes are read by the same procedure as a normal verification of locations 030h and 031h, except that p3.6 and p3.7 need to be pulled to a logic low. the values returned are: (030h) = 1eh indicates manufactured by atmel (031h) = 87h indicates 87f family (032h) = 03h indicates 87lv51 mode program memory ale psen port0 port1 port2 port3 idle internal 1 1 data data data data idle external 1 1 float data address data power-down internal 0 0 data data data data power-down external 0 0 float data data data program lock bits protection type lb1 lb2 lb3 1 u u u no program lock features. 2 p u u movc instructions executed from external program memory are disabled from fetching code bytes from internal memory, ea is sampled and latched on reset, and further programming of the quickflash is disabled. 3 p p u same as mode 2, also verify is disabled. 4 p p p same as mode 3, also external execution is disabled.
at87lv51 7 programming interface every code byte in the quickflash array can be pro- grammed by using the appropriate combination of control signals. the write operation cycle is self-timed and once initiated, will automatically time itself to completion. all major programming vendors offer worldwide support for the atmel microcontroller series. please contact your local programming vendor for the appropriate software revision. quickflash programming modes figure 3. programming the quickflash memory figure 4. verifying the quickflash memory mode rst psen ale/prog ea /v pp p2.6 p2.7 p3.6 p3.7 write code data h l 12v l h h h read code data h l h h l l h h write lock bit - 1 h l 12v h h h h bit - 2 h l 12v h h l l bit - 3hl 12vhlhl read signature byte h l h h l l l l a0 - a7 addr. 0000h/0fffh 3 -16 mhz a8 - a11 +5v p1 p2.6 p3.6 p2.0 - p2.3 p2.7 p3.7 xtal2 xtal1 gnd at87lv51 p0 ale v cc ea rst psen pgm data v ih /v pp v ih prog rdy/ bs y p3.4 see quickflash programming modes table addr. 0000h/0fffh a0 - a7 a8 - a11 at87lv51 p1 p2.6 p3.6 p2.0 - p2.3 p2.7 p3.7 xtal2 p0 ale v cc ea 3 -16 mhz xtal1 gnd rst psen pgm data (use 10k pull-ups) v ih v ih +5v see quickflash programming modes table
at87lv51 8 quickflash programming and verification characteristics t a = 0c to 70c, v cc = 5.0v 10% quickflash programming and verification waveforms symbol parameter min max units v pp programming enable voltage 11.5 12.5 v i pp programming enable current 1.0 ma 1/t clcl oscillator frequency 3 16 mhz t avgl address setup to prog low 48t clcl t ghax address hold after prog 48t clcl t dvgl data setup to prog low 48t clcl t ghdx data hold after prog 48t clcl t ehsh p2.7 (enable ) high to v pp 48t clcl t shgl v pp setup to prog low 10 s t ghsl v pp hold after prog 10 s t glgh prog width 1 110 s t avqv address to data valid 48t clcl t elqv enable low to data valid 48t clcl t ehqz data float after enable 048t clcl t ghbl prog high to busy low 1.0 s t wc byte write cycle time 2.0 ms t glgh t ghsl t avgl t shgl t dvgl t ghax t avqv t ghdx t ehsh t elqv t wc busy ready t ghbl t ehqz p1.0 - p1.7 p2.0 - p2.3 ale/prog port 0 logic 1 logic 0 ea/v pp v pp p2.7 (enable) p3.4 (rdy/bsy) programming address verification address data i n data i n
at87lv51 9 absolute maximum ratings* dc characteristics the values shown in this table are valid for t a = -40 c to 85 c and v cc = 2.7v to 5.5v, unless otherwise noted. notes: 1. under steady state (non-transient) conditions, i ol must be externally limited as follows: maximum i ol per port pin: 10 ma maximum i ol per 8-bit port: port 0: 26 ma ports 1, 2, 3: 15 ma maximum total iol for all output pins: 71ma if i ol exceeds the test condition, v ol may exceed the related specification. pins are not guaranteed to sink current greater than the listed test conditions. 2. minimum v cc for power-down is 2v. operating temperature.................................. -55 c to +125 c *notice: stresses beyond those listed under ? absolute maximum ratings ? may cause permanent dam- age to the device. this is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. storage temperature ..................................... -65 c to +150 c voltage on any pin with respect to ground .....................................-1.0v to +7.0v maximum operating voltage ............................................ 6.0v dc output current...................................................... 15.0 ma symbol parameter condition min max units v il input low voltage (except ea ) -0.5 0.2 v cc - 0.1 v v il1 input low voltage (ea ) -0.5 0.2 v cc - 0.3 v v ih input high voltage (except xtal1, rst) 0.2 v cc + 0.9 v cc + 0.5 v v ih1 input high voltage (xtal1, rst) 0.7 v cc v cc + 0.5 v v ol output low voltage (1) (ports 1,2,3) i ol = 1.6 ma 0.45 v v ol1 output low voltage (1) (port 0, ale, psen ) i ol = 3.2 ma 0.45 v v oh output high voltage (ports 1,2,3, ale, psen ) i oh = -60 a, v cc = 5v 10% 2.4 v i oh = -20 a 0.75 v cc v i oh = -10 a0.9 v cc v v oh1 output high voltage (port 0 in external bus mode) i oh = -800 a, v cc = 5v 10% 2.4 v i oh = -300 a 0.75 v cc v i oh = -80 a0.9 v cc v i il logical 0 input current (ports 1,2,3) v in = 0.45v -50 a i tl logical 1 to 0 transition current (ports 1,2,3) v in = 2v, v cc = 5v 10% -650 a i li input leakage current (port 0, ea ) 0.45 < v in < v cc 10 a rrst reset pulldown resistor 50 300 k ? c io pin capacitance test freq. = 1 mhz, t a = 25 c10pf i cc power supply current active mode, 12 mhz, v cc = 6v/3v 20/5.5 ma idle mode, 12 mhz, v cc = 6v/3v 5/1 ma power-down mode (2) v cc = 6v 100 a v cc = 3v 20 a
at87lv51 10 ac characteristics under operating conditions, load capacitance for port 0, ale/prog , and psen = 100 pf; load capacitance for all other outputs = 80 pf. external program and data memory characteristics symbol parameter 16 mhz oscillator variable oscillator units min max min max 1/t clcl oscillator frequency 0 16 mhz t lhll ale pulse width 85 2t clcl - 40 ns t avll address valid to ale low 22 t clcl - 40 ns t llax address hold after ale low 32 t clcl - 30 ns t lliv ale low to valid instruction in 150 4t clcl - 100 ns t llpl ale low to psen low 32 t clcl - 30 ns t plph psen pulse width 142 3t clcl - 45 ns t pliv psen low to valid instruction in 82 3t clcl - 105 ns t pxix input instruction hold after psen 00ns t pxiz input instruction float after psen 37 t clcl - 25 ns t pxav psen to address valid 75 t clcl - 8 ns t aviv address to valid instruction in 207 5t clcl - 105 ns t plaz psen low to address float 10 10 ns t rlrh rd pulse width 275 6t clcl - 100 ns t wlwh wr pulse width 275 6t clcl - 100 ns t rldv rd low to valid data in 147 5t clcl - 165 ns t rhdx data hold after rd 00ns t rhdz data float after rd 65 2t clcl - 60 ns t lldv ale low to valid data in 350 8t clcl - 150 ns t avdv address to valid data in 397 9t clcl - 165 ns t llwl ale low to rd or wr low 137 239 3t clcl - 50 3t clcl + 50 ns t avwl address to rd or wr low 122 4t clcl - 130 ns t qvwx data valid to wr transition 13 t clcl - 50 ns t qvwh data valid to wr high 287 7t clcl - 150 ns t whqx data hold after wr 13 t clcl - 50 ns t rlaz rd low to address float 0 0 ns t whlh rd or wr high to ale high 23 103 t clcl - 40 t clcl + 40 ns
at87lv51 11 external program memory read cycle external data memory read cycle t lhll t lliv t pliv t llax t pxiz t plph t plaz t pxav t avll t llpl t aviv t pxix a8 - a15 a0 - a7 a0 - a7 a8 - a15 instr in ale port 0 port 2 psen t lhll t lldv t llwl t llax t whlh t avll t rlrh t avdv t avwl t rlaz t rhdx t rldv t rhdz a0 - a7 from ri or dpl p2.0 - p2.7 or a8 - a15 from dph a0 - a7 from pcl a8 - a15 from pch data in instr in ale port 0 port 2 psen rd
at87lv51 12 external data memory write cycle external clock drive waveforms external clock drive symbol parameter min max units 1/t clcl oscillator frequency 0 16 mhz t clcl clock period 62.5 ns t chcx high time 20 ns t clcx low time 20 ns t clch rise time 20 ns t chcl fall time 20 ns t lhll t llwl t llax t whlh t avll t wlwh t avwl t qvwx t qvwh t whqx a0 - a7 from ri or dpl p2.0 - p2.7 or a8 - a15 from dph a0 - a7 from pcl a8 - a15 from pch data out instr in ale port 0 port 2 psen wr t chcx t chcx t clcx t clcl t chcl t clch v - 0.5v cc 0.45v 0.2 v - 0.1v cc 0.7 v cc
at87lv51 13 serial port timing: shift register mode test conditions the values in this table are valid for v cc = 2.7v to 5.5v and load capacitance = 80 pf shift register mode timing waveforms ac testing input/output waveforms (1) note: 1. ac inputs during testing are driven at v cc - 0.5v for a logic ? 1 ? and 0.45v for a logic ? 0 ? . timing measure- ments are made at v ih min. for a logic ? 1 ? and v il max. for a logic ? 0 ? . float waveforms (1) note: 1. for timing purposes, a port pin is no longer floating when a 100 mv change from load voltage occurs. a port pin begins to float when a 100 mv change from the loaded v oh /v ol level occurs. symbol parameter 12 mhz oscillator variable oscillator units min max min max t xlxl serial port clock cycle time 1.0 12t clcl s t qvxh output data setup to clock rising edge 700 10t clcl - 133 ns t xhqx output data hold after clock rising edge 50 2t clcl - 117 ns t xhdx input data hold after clock rising edge 0 0 ns t xhdv clock rising edge to input data valid 700 10t clcl - 133 ns t xhdv t qvxh t xlxl t xhdx t xhqx input data clear ri output data instruction ale clock 0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 set ti set ri 8 valid valid valid valid valid valid valid valid write to sbuf 0.45v test points v - 0.5v cc 0.2 v + 0.9v cc 0.2 v - 0.1v cc timing reference points v load v load - 0.1v v load + 0.1v v ol + 0.1v v ol - 0.1v
at87lv51 14 ordering information speed (mhz) power supply ordering code package operation range 12 2.7v to 5.5v at87lv51-12ac at87lv51-12jc at87lv51-12pc 44a 44j 40p6 commercial (0 c to 70 c) at87lv51-12ai at87lv51-12ji at87lv51-12pi 44a 44j 40p6 industrial (-40 c to 85 c) 16 2.7v to 5.5v at87lv51-16ac at87lv51-16jc at87lv51-16pc 44a 44j 40p6 commercial (0 c to 70 c) at87lv51-16ai at87lv51-16ji AT87LV51-16PI 44a 44j 40p6 industrial (-40 c to 85 c) package type 44a 44-lead, thin plastic gull wing quad flatpack (tqfp) 44j 44-lead, plastic j-leaded chip carrier (plcc) 40p6 40-pin, 0.600" wide, plastic dull inline package (pdip)
at87lv51 15 packaging information *controlling dimension: millimeters 1.20(0.047) max 10.10(0.394) 9.90(0.386) sq 12.21(0.478) 11.75(0.458) sq 0.75(0.030) 0.45(0.018) 0.15(0.006) 0.05(0.002) 0.20(.008) 0.09(.003) 0 7 0.80(0.031) bsc pin 1 id 0.45(0.018) 0.30(0.012) .045(1.14) x 45 pin no. 1 identify .045(1.14) x 30 - 45 .012(.305) .008(.203) .021(.533) .013(.330) .630(16.0) .590(15.0) .043(1.09) .020(.508) .120(3.05) .090(2.29) .180(4.57) .165(4.19) .500(12.7) ref sq .032(.813) .026(.660) .050(1.27) typ .022(.559) x 45 max (3x) .656(16.7) .650(16.5) .695(17.7) .685(17.4) sq sq 2.07(52.6) 2.04(51.8) pin 1 .566(14.4) .530(13.5) .090(2.29) max .005(.127) min .065(1.65) .015(.381) .022(.559) .014(.356) .065(1.65) .041(1.04) 0 15 ref .690(17.5) .610(15.5) .630(16.0) .590(15.0) .012(.305) .008(.203) .110(2.79) .090(2.29) .161(4.09) .125(3.18) seating plane .220(5.59) max 1.900(48.26) ref 44a, 44-lead, thin (1.0 mm) plastic gull wing quad flat package (tqfp) dimensions in millimeters and (inches)* 44j, 44-lead, plastic j-leaded chip carrier (plcc) dimensions in inches and (millimeters) 40p6, 40-pin, 0.600" wide, plastic dual inline package (pdip) dimensions in inches and (millimeters) jedec standard ms-011 ac
? atmel corporation 2000. atmel corporation makes no warranty for the use of its products, other than those expressly contained in the company ? s standard war- ranty which is detailed in atmel ? s terms and conditions located on the company ? s web site. the company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any tim e without notice, and does not make any commitment to update the information contained herein. no licenses to patents or other intellectu al prop- erty of atmel are granted by the company in connection with the sale of atmel products, expressly or by implication. atmel ? s products are not authorized for use as critical components in life support devices or systems. atmel headquarters atmel operations corporate headquarters 2325 orchard parkway san jose, ca 95131 tel (408) 441-0311 fax (408) 487-2600 europe atmel u.k., ltd. coliseum business centre riverside way camberley, surrey gu15 3yl england tel (44) 1276-686-677 fax (44) 1276-686-697 asia atmel asia, ltd. room 1219 chinachem golden plaza 77 mody road tsimhatsui east kowloon hong kong tel (852) 2721-9778 fax (852) 2722-1369 japan atmel japan k.k. 9f, tonetsu shinkawa bldg. 1-24-8 shinkawa chuo-ku, tokyo 104-0033 japan tel (81) 3-3523-3551 fax (81) 3-3523-7581 atmel colorado springs 1150 e. cheyenne mtn. blvd. colorado springs, co 80906 tel (719) 576-3300 fax (719) 540-1759 atmel rousset zone industrielle 13106 rousset cedex france tel (33) 4-4253-6000 fax (33) 4-4253-6001 fax-on-demand north america: 1-(800) 292-8635 international: 1-(408) 441-0732 e-mail literature@atmel.com web site http://www.atmel.com bbs 1-(408) 436-4309 printed on recycled paper. 1602a ? 04/00/xm marks bearing ? and/or ? are registered trademarks and trademarks of atmel corporation. terms and product names in this document may be trademarks of others.

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