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june 2008 rev 4 1/22 1 m27w512 512 kbit (64 kbit x8) low-voltage otp eprom features 2.7 to 3.6 v supply voltage in read operation access time: 100 ns pin compatibility with m27c512 low power consumption ? 15 a max standby current ? 15 ma max active current at 5 mhz programming time 100 s/byte high reliability cmos technology ? 2000 v esd protection ? 200 ma latch-up protection immunity electronic signature ? manufacturer code: 20h ? device code: 3dh ecopack ? packages plcc32 (k) www.st.com
contents m27w512 2/22 contents 1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1 read mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 two line output control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.4 system considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.5 programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.6 presto iib programming algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.7 program inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.8 program verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.9 electronic signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 dc and ac parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6 part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
m27w512 list of tables 3/22 list of tables table 1. signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 2. operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 3. electronic signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 4. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 table 5. ac measurement conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 table 6. capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 table 7. read mode dc characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 table 8. read mode ac characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 table 9. programming mode dc characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 10. margin mode ac characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 11. programming mode ac characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 12. plcc32 - 32 lead plastic leaded chip carrier, package mechanical data. . . . . . . . . . . . . . 19 table 13. ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 table 14. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
list of figures m27w512 4/22 list of figures figure 1. logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. lcc connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 3. programming flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 4. ac testing input output waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 5. ac testing load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 6. read mode ac waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 figure 7. margin mode ac waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 figure 8. programming and verify mode ac waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 figure 9. plcc32 - 32 lead plastic leaded chip carrier, package outline . . . . . . . . . . . . . . . . . . . . . 19
m27w512 description 5/22 1 description the m27w512 is a low-voltage, 512 kbit otp (one-time programmable) eprom. it is ideally suited to microprocessor systems and are organized as 65536 by 8 bits. the m27w512 operates in the read mode with a supply voltage as low as 2.7 v at ?40 to 85 c temperature range. the decrease in operating power allows either a reduction of the size of the battery or an increase in the time between battery recharges. for applications where the content is programmed only one time and erasure is not required, the m27w512 is offered in plcc32 packages. figure 1. logic diagram ai01584 16 q0-q7 v cc m27w512 gv pp v ss 8 a0-a15 e
description m27w512 6/22 figure 2. lcc connections table 1. signal names signal names function a0-a15 address inputs q0-q7 data outputs e chip enable gv pp output enable / program supply v cc supply voltage v ss ground nc not connected internally du don?t use ai01585 a13 a8 a10 q4 17 a0 nc q0 q1 q2 du q3 a6 a3 a2 a1 a5 a4 9 a14 a9 1 a15 a11 q6 a7 q7 32 du v cc m27w512 a12 nc q5 gv pp e 25 v ss
m27w512 device operation 7/22 2 device operation the modes of operations of the m27w512 are listed in table 2: operating modes . a single power supply is required in the read mode. all inputs are ttl levels except for g v pp and 12v on a9 for electronic signature. 2.1 read mode the m27w512 has two control functions, both of which must be logically active in order to obtain data at the outputs. chip enable (e ) is the power control and should be used for device selection. output enable (g ) is the output control and should be used to gate data to the output pins, independent of device selection. assuming that the addresses are stable, the address access time (t avqv ) is equal to the delay from e to output (t elqv ). data is available at the output after a delay of t glqv from the falling edge of g , assuming that e has been low and the addresses have been stable for at least t avqv -t glqv . 2.2 standby mode the m27w512 has a standby mode which reduces the supply current from 15ma to 15a with low voltage operation v cc 3.6v, see table 7: read mode dc characteristics . characteristics table for details. the m27w512 is placed in the standby mode by applying a cmos high signal to the e input. when in the standby mode, the outputs are in a high impedance state, independent of the g v pp input. table 2. operating modes (1) 1. x = v ih or v il , v id = 12v 0.5v. mode e g v pp a9 q7-q0 read v il v il x data out output disable v il v ih x hi-z program v il pulse v pp x data in program inhibit v ih v pp x hi-z standby v ih x x hi-z electronic signature v il v il v id codes table 3. electronic signature identifier a0 q7 q6 q5 q4 q3 q2 q1 q0 hex data manufacturer code v il 00100000 20h device code v ih 00111101 3dh
device operation m27w512 8/22 2.3 two line output control because eproms are usually used in larger memory arrays, the product features a 2 line control function which accommodates the use of multiple memory connection. the two line control function allows: the lowest possible memory power dissipation complete assurance that output bus contention will not occur. for the most efficient use of these two control lines, e should be decoded and used as the primary device selecting function, while g should be made a common connection to all devices in the array and connected to the read line from the system control bus. this ensures that all deselected memory devices are in their low power standby mode and that the output pins are only active when data is required from a particular memory device. 2.4 system considerations the power switching characteristics of advanced cmos eproms require careful decoupling of the devices. the supply current, i cc , has three segments that are of interest to the system designer: the standby current level, the active current level, and transient current peaks that are produced by the falling and rising edges of e . the magnitude of the transient current peaks is dependent on the capacitive and inductive loading of the device at the output. the associated transient voltage peaks can be suppressed by complying with the two line output control and by properly selected decoupling capacitors. it is recommended that a 0.1f ceramic capacitor be used on every device between v cc and v ss . this should be a high frequency capacitor of low inherent inductance and should be placed as close to the device as possible. in addition, a 4.7f bulk electrolytic capacitor should be used between v cc and v ss for every eight devices. the bulk capacitor should be located near the power supply connection point.the purpose of the bulk capacitor is to overcome the voltage drop caused by the inductive effects of pcb traces.
m27w512 device operation 9/22 figure 3. programming flowchart 2.5 programming the m27w512 has been designed to be fully compatible with the m27c512 and has the same electronic signature. as a result, the m27w512 can be programmed as the m27c512 on the same programming equipment applying 12.75v on v pp and 6.25v on v cc . the m27w512 can use presto iib programming algorithm that drastically reduces the programming time. nevertheless to achieve compatibility with all pr ogramming equipment, presto ii programming algorithm can be used as well. when delivered, all bits of the m27w512 are in the '1' state. data is introduced by selectively programming '0's into the desired bit locations. although only '0's will be programmed, both '1 's and '0's can be present in the data word. the m27w512 is in the programming mode when v pp input is at 12.75v and e is pulsed to v il . the data to be programmed is applied to 8 bits in parallel to the data output pins. the levels required for the address and data inputs are ttl. v cc is specified to be 6.25v 0.25v. ai00738c n = 0 last addr verify e = 100 s pulse ++n = 25 ++ addr v cc = 6.25v, v pp = 12.75v fail check all bytes 1st: v cc = 5v 2nd: v cc = 2.7v yes no yes no yes no set margin mode reset margin mode
device operation m27w512 10/22 2.6 presto iib programming algorithm presto iib programming algorithm allows the whole array to be programmed with a guaranteed margin, in a typical time of 6.5 seconds. this can be achieved with stmicroelectronics m27w512 due to several design innovations described in the m27w512 datasheet to improve programming efficiency and to provide adequate margin for reliability. before starting the programming the internal margin mode circuit must be set in order to guarantee that each cell is programmed with enough margin. then a sequence of 100s program pulses is applied to each byte until a correct verify occurs (see figure 3 ). no overprogram pulses are applied since the verify in margin mode at v cc much higher than 3.6v, provides the necessary margin. 2.7 program inhibit programming of multiple devices in parallel with different data is also easily accomplished. except for e , all like inputs including g v pp of the parallel m27w512 may be common. a ttl low level pulse applied to a m27w512 e input, with v pp at 12.75v, will program this device. a high level e input inhibits the other m27w512 from being programmed. 2.8 program verify a verify (read) should be performed on the programmed bits to determine that they were correctly programmed. the verify is accomplished with g at v il . data should be verified with t elqv after the falling edge of e . 2.9 electronic signature the electronic signature (es) mode allows the reading out of a binary code from an eprom that will identify its manufacturer an d type. this mode is intended for use by programming equipment to automatically match the device to be programmed with its corresponding programming algorithm. the es mode is functional in the 25c 5c ambient temperature range that is required when programming the m27w512. to activate the es mode, the programming equipment must force 11.5v to 12.5v on address line a9 of the m27w512. two identifier bytes may then be sequenced from the device outputs by toggling address line a0 from v il to v ih . all other address lines must be held at v il during electronic signature mode. byte 0 (a0 = v il ) represents the manufacturer code and byte 1 (a0 = v ih ) the device identifier code. for the stmicroelectronics m27w512, these two identifier bytes are given in ta b l e 3 and can be read-out on outputs q7 to q0. note that the m27w512 and m27c512 have the same identifier byte.
m27w512 maximum rating 11/22 3 maximum rating stressing the device outside the ratings listed in ta bl e 4 may cause permanent damage to the device. these are stress ratings only, and operation of the device at these, or any other conditions outside those indicated in the operat ing sections of this specification, is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. refer also to the stmicroe lectronics sure program and other relevant quality documents. table 4. absolute maximum ratings symbol parameter value unit t a ambient operating temperature (1) 1. depends on range. ?40 to 125 c t bias temperature under bias ?50 to 125 c t stg storage temperature ?65 to 150 c v io (2) 2. minimum dc voltage on input or output is ?0.5v wi th possible undershoot to ?2.0v for a period less than 20ns. maximum dc voltage on output is v cc +0.5v with possible overshoot to v cc +2v for a period less than 20ns. input or output voltage (except a9) ?2 to 7 v v cc supply voltage ?2 to 7 v v a9 (2) a9 voltage ?2 to 13.5 v v pp program supply voltage ?2 to 14 v
dc and ac parameters m27w512 12/22 4 dc and ac parameters this section summarizes the operating and measurement conditions, and the dc and ac characteristics of the device. the parameters in the dc and ac characteristic tables that follow are derived from tests performed under the measurement conditions summarized in the relevant tables. designers should check that the operating conditions in their circuit match the measurement conditions when relying on the quoted parameters. figure 4. ac testing input output waveform figure 5. ac testing load circuit table 5. ac measurement conditions high speed standard input rise and fall times 10ns 20ns input pulse voltages 0 to 3v 0.4v to 2.4v input and output timing ref. voltages 1.5v 0.8v and 2v ai01822 3v high speed 0v 1.5v 2.4v standard 0.4v 2.0v 0.8v ai01823b 1.3v out c l c l = 30pf for high speed c l = 100pf for standard c l includes jig capacitance 3.3k 1n914 device under test
m27w512 dc and ac parameters 13/22 table 6. capacitance symbol parameter test condition (1)(2) min max unit c in input capacitance v in = 0v 6 pf c out output capacitance v out = 0v 12 pf 1. t a = 25c, f = 1mhz 2. sampled only, not 100% tested. table 7. read mode dc characteristics symbol parameter test condition (1) min max unit i li input leakage current 0v v in v cc 10 a i lo output leakage current 0v v out v cc 10 a i cc supply current e = v il , g = v il , i out = 0ma, f = 5mhz v cc 3.6v 15 ma i cc1 supply current (standby) ttl e = v ih 1ma i cc2 supply current (standby) cmos e > v cc ? 0.2v, v cc 3.6v 15 a i pp program current v pp = v cc 10 a v il input low voltage ?0.6 0.2 v cc v v ih (2) input high voltage 0.7 v cc v cc + 0.5 v v ol output low voltage i ol = 2.1ma 0.4 v v oh output high voltage ttl i oh = ?1ma 2.4 v 1. v cc must be applied simultaneously with or before v pp and removed simultaneously or after v pp . 2. maximum dc voltage on output is v cc +0.5v.
dc and ac parameters m27w512 14/22 figure 6. read mode ac waveforms table 8. read mode ac characteristics symbol alt parameter test condition (1) m27w512 unit -70 (2) -80 (2) -100 v cc = 3.0 to 3.6v v cc = 2.7 to 3.6v v cc = 2.7 to 3.6v min max min max min max t avqv t acc address valid to output valid e = v il , g = v il 70 80 100 ns t elqv t ce chip enable low to output valid g = v il 70 80 100 ns t glqv t oe output enable low to output valid e = v il 40 50 60 ns t ehqz (3) t df chip enable high to output hi-z g = v il 0 40 0 50 60 ns t ghqz (3) t df output enable high to output hi-z e = v il 0 40 0 50 60 ns t axqx t oh address transition to output transition e = v il , g = v il 00 ns 1. v cc must be applied simultaneously with or before v pp and removed simultaneously or after v pp . 2. speed obtained with high speed ac measurement conditions. 3. sampled only, not 100% tested. ai00735b taxqx tehqz a0-a15 e g q0-q7 tavqv tghqz tglqv telqv valid hi-z valid
m27w512 dc and ac parameters 15/22 table 9. programming mode dc characteristics symbol parameter test condition (1)(2) min max unit i li input leakage current v il v in v ih 10 a i cc supply current 50 ma i pp program current e = v il 50 ma v il input low voltage ?0.3 0.8 v v ih input high voltage 2 v cc + 0.5 v v ol output low voltage i ol = 2.1ma 0.4 v v oh output high voltage ttl i oh = ?1ma 3.6 v v id a9 voltage 11.5 12.5 v 1. t a = 25 c; v cc = 6.25v 0.25v; v pp = 12.75v 0.25v 2. v cc must be applied simultaneously with or before v pp and removed simultaneously or after v pp . table 10. margin mode ac characteristics symbol alt parameter test condition (1)(2) min max unit t a9hvph t as9 v a9 high to v pp high 2 s t vphel t vps v pp high to chip enable low 2 s t a10heh t as10 v a10 high to chip enable high (set) 1 s t a10leh t as10 v a10 low to chip enable high (reset) 1 s t exa10x t ah10 chip enable transition to v a10 transition 1 s t exvpx t vph chip enable transition to v pp transition 2 s t vpxa9x t ah9 v pp transition to v a9 transition 2 s 1. t a = 25 c; v cc = 6.25v 0.25v; v pp = 12.75v 0.25v 2. v cc must be applied simultaneously with or before v pp and removed simultaneously or after v pp .
dc and ac parameters m27w512 16/22 figure 7. margin mode ac waveforms 1. a8 high level = 5v; a9 high level = 12v. ai00736b ta9hvph tvpxa9x a8 e gv pp a10 set v cc tvphel ta10leh texvpx ta10heh a9 a10 reset texa10x table 11. programming mode ac characteristics symbol alt parameter test condition (1)(2) min max unit t avel t as address valid to chip enable low 2 s t qvel t ds input valid to chip enable low 2 s t vchel t vcs v cc high to chip enable low 2 s t vphel t oes v pp high to chip enable low 2 s t vplvph t prt v pp rise time 50 ns t eleh t pw chip enable program pulse width (initial) 95 105 s t ehqx t dh chip enable high to input transition 2 s t ehvpx t oeh chip enable high to v pp transition 2 s t vplel t vr v pp low to chip enable low 2 s t elqv t dv chip enable low to output valid 1 s t ehqz (3) t dfp chip enable high to output hi-z 0 130 ns t ehax t ah chip enable high to address transition 0 ns 1. t a = 25 c; v cc = 6.25v 0.25v; v pp = 12.75v 0.25v 2. v cc must be applied simultaneously with or before v pp and removed simultaneously or after v pp . 3. sampled only, not 100% tested.
m27w512 dc and ac parameters 17/22 figure 8. programming and verify mode ac waveforms ai00737 tvplel program data in a0-a15 e gv pp q0-q7 data out tavel tqvel tvchel tvphel tehqx tehvpx teleh telqv tehax tehqz verify valid v cc
package mechanical data m27w512 18/22 5 package mechanical data in order to meet environmental requirements, st offers the m27w512 in ecopack ? packages. these packages have a lead-free second level interconnect. the category of second level interconnect is marked on the package and on the inner box label, in compliance with jedec standard jesd97. the maximum ratings related to soldering conditions are also marked on the inner box label. ecopack is an st trademark. ecopack specifications are available at www.st.com .
m27w512 package mechanical data 19/22 figure 9. plcc32 - 32 lead plastic leaded chip carrier, package outline 1. drawing is not to scale. table 12. plcc32 - 32 lead plastic leaded chip carrier, package mechanical data symbol millimeters inches (1) 1. values in inches are converted from mm and rounded to 4 decimal digits. typ min max typ min max a 3.175 3.556 0.1250 0.1400 a1 1.530 2.413 0.0602 0.0950 a2 0.381 - 0.0150 - b 0.330 0.533 0.0130 0.0210 b1 0.660 0.813 0.0260 0.0320 cp 0.100 0.0039 d 12.319 12.573 0.4850 0.4950 d1 11.354 11.506 0.4470 0.4530 d2 4.780 5.660 0.1882 0.2228 d3 7.620 - - 0.3000 - - e 14.859 15.113 0.5850 0.5950 e1 13.894 14.046 0.5470 0.5530 e2 6.050 6.930 0.2382 0.2728 e3 10.160 - - 0.4000 - - e 1.270 - - 0.0500 - - f 0.000 0.127 0.0000 0.0050 r 0.889 - - 0.0350 - - n (number of pins) 32 32 plcc-a d e3 e1 e 1 n d1 d3 cp b e2 e b1 a1 a r 0.51 (.020) 1.14 (.045) f a2 e2 d2 d2
part numbering m27w512 20/22 6 part numbering table 13. ordering information scheme for a list of available options (speed, package, etc.) or for further information on any aspect of this device, please contact your nearest st sales office. example: m27w512 -100 k 6 tr device type m27 supply voltage w = 2.7 v to 3.6 v device function 512 = 512 kbit (64 kb x 8) speed -100= 100 ns package k = plcc32 temperature range 6 = ?40 to 85 c options blank = standard packing tr = tape and reel packing
m27w512 revision history 21/22 7 revision history table 14. document revision history date revision changes 20-mar-2000 1.1 fdip28w package dimension, l max added ( ta b l e 1 2 ) tsop32 package dimension changed ( ta bl e 1 3 ) 0 to 70c temperature range deleted speed classes changed 15-jun-2001 1.2 typing error ( ta bl e 8 ) 30-aug-2002 1.3 package mechanical data clarified for fdip28w ( ta b l e 1 2 ), pdip28 ( ta bl e 1 3 ), plcc32 ( ta b l e 1 2 , figure 9 ) and tsop28 ( ta bl e 1 3 , figure 11 ) 08-nov-2004 2.0 details of ecopack lead-free package options added 27-apr-2007 3 document reformatted. fdip28w and pdip28 packages removed. 120, 150 and 200ns access times removed from table 13: ordering information scheme . 09-jun-2008 4 small text changes. uv range no longer offered (references to uv removed). tsop28 package removed. package mechanical data in inches calculated from millimeters and rounded to three decimals (see table 12: plcc32 - 32 lead plastic leaded chip carrier, package mechanical data ). e and f options and 80 ns speed class removed from ta b l e 1 3 : ordering information scheme .
m27w512 22/22 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. unless expressly approved in writing by an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2008 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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