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march 2006 rev 3 1/24 1 m27c322 32 mbit (2mb x16) uv eprom and otp eprom feature summary 5v 10% supply voltage in read operation access time: 80ns word-wide configurable 32 mbit mask rom replacement low power consumption ? active current 50ma at 5mhz ? standby current 100a programming voltage: 12v 0.25v programming time: 50s/word electronic signature ? manufacturer code: 0020h ? device code: 0034h ecopack ? packages available 1 42 1 42 fdip42w (f) pdip42 (b) 1 42 sdip42 (s) www.st.com obsolete product(s) - obsolete product(s)
contents m27c322 2/24 contents 1 summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 device operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.1 read mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 two line output control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4 system considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.5 programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.6 presto iii programming algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.7 program inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.8 program verify . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.9 electronic signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.10 erasure operation (applies to uv eprom) . . . . . . . . . . . . . . . . . . . . . . . 10 3 maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 dc and ac parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5 package mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6 part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 7 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 obsolete product(s) - obsolete product(s)
m27c322 list of tables 3/24 list of tables table 1. signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 table 2. operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 table 3. electronic signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 table 4. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 table 5. ac measurement conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 table 6. capacitance (t a = 25 c, f = 1 mhz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 table 7. read mode dc characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 8. programming mode dc characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 9. read mode ac characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 10. margin mode ac characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 table 11. programming mode ac characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 table 12. fdip42w - 42 pin ceramic frit-seal dip, with window (0.370" x 0.450"), package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 table 13. pdip42 - 42 pin plastic dip, 600 mils width, package mechanical data . . . . . . . . . . . . . . 20 table 14. sdip42 - 42 pin shrink plastic dip, 600 mi ls width, package mechanical data . . . . . . . . . 21 table 15. ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 table 16. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 obsolete product(s) - obsolete product(s)
list of figures m27c322 4/24 list of figures figure 1. logic diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. dip connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 3. programming flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 4. ac testing input output waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 figure 5. ac testing load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 figure 6. read mode ac waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 figure 7. margin mode ac waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 figure 8. programming and verify modes ac waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 figure 9. fdip42w - 42 pin ceramic frit-s eal dip, with windo w (0.370" x 0.450"), package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 figure 10. pdip42 - 42 pin plastic dip, 600 mils width, package outline . . . . . . . . . . . . . . . . . . . . . . 20 figure 11. sdip42 - 42 pin shrink plastic dip, 600 mils width, package outline. . . . . . . . . . . . . . . . . 21 obsolete product(s) - obsolete product(s)
m27c322 summary description 5/24 1 summary description the m27c322 is a 32 mbit eprom offered in the uv range (ultra violet erase). it is ideally suited for microprocessor systems requiring large data or program storage. it is organised as 2 mwords of 16 bit. the pin-out is compatible with a 32 mbit mask rom. the fdip42w (window ceramic frit-seal package) has a transparent lid which allows the user to expose the chip to ultraviolet light to erase the bit pattern. a new pattern can then be written rapidly to the device by following the programming procedure. for applications where the content is programmed only one time and erasure is not required, the m27c322 is offered in pdip42 and sdip42 packages. in order to meet environmental requirements, st offers the m27c322 in ecopack? packages. ecopack packages are lead-free. 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 . figure 1. logic diagram table 1. signal names a0-a20 address inputs q0-q15 data outputs e chip enable g v pp output enable / program supply v cc supply voltage v ss ground ai02156 21 a0-a20 gv pp q0-q15 v cc m27c322 e v ss 16 obsolete product(s) - obsolete product(s)
summary description m27c322 6/24 figure 2. dip connections gv pp q0 q8 a3 a0 e v ss a2 a1 a13 v ss a14 a15 q7 a12 a16 a20 q15 q5 q2 q3 v cc q11 q4 q14 a9 a8 a17 a4 a18 a19 a7 ai02157 m27c322 8 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 20 19 18 17 q1 q9 a6 a5 q6 q13 42 39 38 37 36 35 34 33 a11 a10 q10 21 q12 40 41 obsolete product(s) - obsolete product(s)
m27c322 device operation 7/24 2 device operation the operating modes of the m27c322 are listed in the operating modes table. a single power supply is required in the read mode. all inputs are ttl compatible except for v pp and 12v on a9 for the electronic signature. 2.1 read mode the m27c322 has a word-wide organization. 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 v pp , assuming that e has been low and the addresses have been stable for at least t avqv -t glqv . 2.2 standby mode the m27c322 has a standby mode which reduces the supply current from 50ma to 100a. the m27c322 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. 2.3 two line output control because eproms are usually used in larger me mory arrays, this product features a 2 line control function which accommodates the use of multiple memory connection. the two line control function allows: 1. the lowest possible memory power dissipation, 2. complete assurance that outpu t 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 v pp 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. obsolete product(s) - obsolete product(s)
device operation m27c322 8/24 2.4 system considerations the power switching characteristics of advanced cmos eproms require careful decoupling of the supplies to the devices. the supply current icc has three segments of importance to the system designer: the standby current, the active current and the transient 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 outputs. 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 is used on every device between v cc and v ss . this should be a high frequency type of low inherent inductance and should be placed as close as possible to the device. in addition, a 4.7f electrolytic capacitor should be used between v cc and v ss for every eight devices. this capacitor should be mounted near the power supply connection point. the purpose of this capacitor is to overcome the voltage drop caused by the inductive effects of pcb traces. 2.5 programming when delivered (and after each erasure for uv eprom), all bits of the m27c322 are in the "1" state. data is introduced by selectively programming "0"s into the desired bit locations. although only "0"s will be progra mmed, both "1"s and "0"s can be present in the data word. the only way to change a "0" to a "1" is by die exposition to ultraviolet light (uv eprom). the m27c322 is in the programming mode when v pp input is at 12.v, g v pp is at v ih and e is pulsed to v il . the data to be programmed is applied to 16 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. 2.6 presto iii programming algorithm the presto iii programming algorithm allows the whole array to be programed with a guaranteed margin in a typical time of 100 seconds. programming with presto iii consists of applying a sequence of 50s program pulses to each word until a correct verify occurs (see figure 3 ). during programing and verify operation a margin mode circuit must be activated to guarantee that each cell is programed with enough margin. no overprogram pulse is applied since the verify in margin mode provides the nece ssary margin to each programmed cell. obsolete product(s) - obsolete product(s)
m27c322 device operation 9/24 figure 3. programming flowchart 2.7 program inhibit programming of multiple m27c 322s in parallel with different data is also easily accomplished. except for e , all like inputs including g v pp of the parallel m27c322 may be common. a ttl low level pulse applied to a m27c322's e input and v pp at 12v, will program that m27c322. a high level e input inhibits the other m27c322s 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 v pp at v il . data should be verified with t elqv after the fa lling edge of e . ai02206 n = 0 last addr verify e = 50 s pulse ++n = 25 ++ addr v cc = 6.25v, v pp = 12v fail check all words 1st: v cc = 6v 2nd: v cc = 4.2v yes no yes no yes no set margin mode reset margin mode obsolete product(s) - obsolete product(s)
device operation m27c322 10/24 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 m27c322. to activate the es mode, the programming equipment must force 11.5v to 12.5v on address line a9 of the m27c322, with v pp = v cc = 5v. 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 m27c322, these two identifier bytes are given in table 3. and can be read-out on outputs q0 to q7. 2.10 erasure operation (applies to uv eprom) the erasure characteristics of the m27c322 is such that erasure begins when the cells are exposed to light with wavelengths shorter than approximately 4000 ?. it should be noted that sunlight and some type of fluorescent lamps have wavelengths in the 3000-4000 ? range. research shows that constant exposure to room level fluorescent lighting could erase a typical m27c322 in about 3 years, while it would take approximately 1 week to cause erasure when exposed to direct sunlight. if the m27c322 is to be exposed to these types of lighting conditions for extended periods of time, it is suggested that opaque labels be put over the m27c322 window to prevent unintentional erasure. the recommended erasure procedure for m27c322 is exposure to short wave ultraviolet light which has a wavelength of 2537 ?. the integrated dose (i.e. uv intensity x exposure time) for erasure should be a minimum of 30 w-sec/cm 2 . the erasure time with this dosage is approximately 30 to 40 minutes using an ultraviolet lamp with 12000 w/cm 2 power rating. the m27c322 should be placed within 2.5cm (1 inch) of the lamp tubes during the erasure. some lamps have a filter on their tubes which should be removed before erasure. obsolete product(s) - obsolete product(s)
m27c322 device operation 11/24 table 2. operating modes (1) 1. x = v ih or v il , v id = 12v 0.5v. mode e g v pp a9 q15-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 (1) 1. outputs q15-q8 are set to '0'. identifier a0 q7 q6 q5 q4 q3 q2 q1 q0 hex data manufacturer?s code v il 00100000 20h device code v ih 00110100 34h obsolete product(s) - obsolete product(s)
maximum rating m27c322 12/24 3 maximum rating stressing the device above the rating listed in the absolute maximum ratings table may cause permanent damage to the device. these are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. refer also to the stmicroelectronics 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 obsolete product(s) - obsolete product(s)
m27c322 dc and ac parameters 13/24 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 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 obsolete product(s) - obsolete product(s)
dc and ac parameters m27c322 14/24 figure 5. ac testing load circuit table 6. capacitance (t a = 25 c, f = 1 mhz) (1) 1. sampled only, not 100% tested. symbol parameter test condition min max unit c in input capacitance v in = 0v 10 pf c out output capacitance v out = 0v 12 pf 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 obsolete product(s) - obsolete product(s)
m27c322 dc and ac parameters 15/24 table 7. read mode dc characteristics (1) (2) 1. v cc must be applied simultaneously with or before v pp and removed simultaneously or after v pp . 2. (t a = 0 to 70 c, ?40 to 85 c or ?40 to 125 c; v cc = 5v 10%; v pp = v cc ) symbol parameter test condition min max unit i li input leakage current 0v v in v cc 1 a i lo output leakage current 0v v out v cc 10 a i cc supply current e = v il , g v pp = v il , i out = 0ma, f = 8mhz 70 ma e = v il , g v pp = v il , i out = 0ma, f = 5mhz 50 ma i cc 1 supply current (standby) ttl e = v ih 1ma i cc 2 supply current (standby) cmos e > v cc ? 0.2v 100 a i pp program current v pp = v cc 10 a v il input low voltage ?0.3 0.8 v v ih (3) 3. maximum dc voltage on output is v cc +0.5v. input high voltage 2 v cc + 1 v v ol output low voltage i ol = 2.1ma 0.4 v v oh output high voltage ttl i oh = ?400a 2.4 v table 8. programming mode dc characteristics (1) (2) 1. t a = 25 c; v cc = 6.25v 0.25v; v pp = 12v 0.25v 2. v cc must be applied simultaneously with or before v pp and removed simultaneously or after v pp . symbol parameter test condition 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 2.4 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 = ?2.5ma 3.5 v v id a9 voltage 11.5 12.5 v obsolete product(s) - obsolete product(s)
dc and ac parameters m27c322 16/24 figure 6. read mode ac waveforms table 9. read mode ac characteristics (1) (2) 1. (t a = 0 to 70 c, ?40 to 85 c or ?40 to 125 c; v cc = 5v 10%; v pp = v cc ) 2. v cc must be applied simultaneously with or before v pp and removed simultaneously or after v pp symbol alt parameter test condition m27c322 unit -80 (3) 3. speed obtained with high speed ac measurement conditions. -100 min max min max t avqv t acc address valid to output valid e = v il , g v pp = v il 80 100 ns t elqv t ce chip enable low to output valid g v pp = v il 80 100 ns t glqv t oe output enable low to output valid e = v il 40 50 ns t ehqz (4) 4. sampled only, not 100% tested. t df chip enable high to output hi-z g v pp = v il 0 40 0 40 ns t ghqz (4) t df output enable high to output hi-z e = v il 0 40 0 40 ns t axqx t oh address transition to output tr a n s i t i o n e = v il , g v pp = v il 55ns ai02207 taxqx tehqz a0-a20 e gv pp q0-q15 tavqv tghqz tglqv telqv valid hi-z valid obsolete product(s) - obsolete product(s)
m27c322 dc and ac parameters 17/24 figure 7. margin mode ac waveforms 1. a8 high level = 5v; a9 high level = 12v. table 10. margin mode ac characteristics (1) (2) 1. t a = 25 c; v cc = 6.25v 0.25v; v pp = 12v 0.25v) 2. v cc must be applied simultaneously with or before v pp and removed simultaneously or after v pp . symbol alt parameter test condition 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) 1s t exa10x t ah10 chip enable transition to v a10 transition 1s t exvpx t vph chip enable transition to v pp transition 2s t vpxa9x t ah9 v pp transition to v a9 transition 2 s ai00736b ta9hvph tvpxa9x a8 e gv pp a10 set v cc tvphel ta10leh texvpx ta10heh a9 a10 reset texa10x obsolete product(s) - obsolete product(s)
dc and ac parameters m27c322 18/24 figure 8. programming and verify modes ac waveforms 1. g v pp high level = 12v. table 11. programming mode ac characteristics (1) (2) 1. t a = 25 c; v cc = 6.25v 0.25v; v pp = 12v 0.25v) 2. v cc must be applied simultaneously with or before v pp and removed simultaneously or after v pp . symbol alt parameter test condition min max unit t avel t as address valid to chip enable low 1 s t qvel t ds input valid to chip enable low 1 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 1 s t vplvph t prt v pp rise time 50 ns t eleh t pw chip enable program pulse width (initial) 45 55 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 1 s t elqv t dv chip enable low to output valid 1 s t ehqz (3) 3. sampled only, not 100% tested. t dfp chip enable high to output hi-z 0 130 ns t ehax t ah chip enable high to address transition 0 ns tavel valid ai02205 a0-a20 q0-q15 v cc data in data out e tqvel tvchel tvphel tehqx tehvpx telqv teleh tehqz tvplel program verify gv pp tehax obsolete product(s) - obsolete product(s)
m27c322 package mechanical 19/24 5 package mechanical figure 9. fdip42w - 42 pin ceramic frit-seal dip, with window (0.370" x 0.450"), package outline 1. drawing is not to scale. table 12. fdip42w - 42 pin ceramic frit-seal dip, with window (0.370" x 0.450"), package mechanical data symbol millimeters inches typ min max typ min max a 5.71 0.225 a1 0.50 1.78 0.020 0.070 a2 3.90 5.08 0.154 0.200 b 0.40 0.55 0.016 0.022 b1 1.27 1.52 0.050 0.060 c 0.22 0.31 0.009 0.012 d 54.81 2.158 d2 50.80 ? ? 2.000 ? ? e 15.24 0.600 e1 14.50 14.90 0.571 0.587 e 2.29 2.79 0.090 0.110 ea 15.40 15.80 0.606 0.622 eb 16.17 18.32 0.637 0.721 k 9.32 9.47 0.367 0.373 k1 11.30 11.55 0.445 0.455 l 3.18 4.10 0.125 0.161 s 1.52 2.49 0.060 0.098 4 15 4 15 n42 42 fdipw-c a2 a1 a l b1 b e d s e1 e n 1 c ea d2 k k1 eb obsolete product(s) - obsolete product(s)
package mechanical m27c322 20/24 figure 10. pdip42 - 42 pin plastic di p, 600 mils width, package outline 1. drawing is not to scale. table 13. pdip42 - 42 pin plastic dip, 600 mils width, package mechanical data symbol millimeters inches typ min max typ min max a ? 5.08 ? 0.200 a1 0.25 ? 0.010 ? a2 3.56 4.06 0.140 0.160 b 0.38 0.53 0.015 0.021 b1 1.27 1.65 0.050 0.065 c 0.20 0.36 0.008 0.014 d 52.20 52.71 2.055 2.075 d250.80? ?2.000? ? e 15.24 ? ? 0.600 ? ? e1 13.59 13.84 0.535 0.545 e1 2.54 ? ? 0.100 ? ? ea 14.99 ? ? 0.590 ? ? eb 15.24 17.78 0.600 0.700 l 3.18 3.43 0.125 0.135 s 0.86 1.37 0.034 0.054 0 10 0 10 n42 42 pdip a2 a1 a l b1 b e1 d s e1 e n 1 c ea eb d2 obsolete product(s) - obsolete product(s)
m27c322 package mechanical 21/24 figure 11. sdip42 - 42 pin shrink plastic dip, 600 mils width, package outline 1. drawing is not to scale. table 14. sdip42 - 42 pin shrink plastic dip, 600 mils width, package mechanical data symbol millimeters inches typ min max typ min max a 5.08 0.200 a1 0.51 0.020 a2 3.81 3.05 4.57 0.150 0.120 0.180 b 0.46 0.38 0.56 0.018 0.015 0.022 b2 1.02 0.89 1.14 0.040 0.035 0.045 c 0.25 0.23 0.38 0.010 0.009 0.015 d 36.83 36.58 37.08 1.450 1.440 1.460 e1.78? ?0.070? ? e 15.24 16.00 0.600 0.630 e1 13.72 12.70 14.48 0.540 0.500 0.570 ea 15.24 ? ? 0.600 ? ? eb 18.54 0.730 l 3.30 2.54 3.56 0.130 0.100 0.140 s 0.63 0.025 n42 42 sdip a2 a1 a l b2 b e d s e1 e n 1 c ea eb d2 obsolete product(s) - obsolete product(s)
part numbering m27c322 22/24 6 part numbering for a list of available options (speed, package, etc...) or for further information on any aspect of this device, please contact the st microelectronics sales office nearest to you. table 15. ordering information scheme example: m27c322 -80 f 1 device type m27 supply voltage c = 5v 10% device function 322 = 32 mbit (2mb x16) speed -80 (1) = 80 ns 1. high speed, see ac characteristi cs section for further information. -100 = 100 ns package f = fdip42w b = pdip42 s = sdip42 temperature range 1 = 0 to 70 c 3 = ?40 to 125 c 6 = ?40 to 85 c obsolete product(s) - obsolete product(s)
m27c322 revision history 23/24 7 revision history table 16. document revision history date revision changes july 1999 1 first issue 24-feb-2000 2 programming time changed programming flowchart changed ( figure 3 ) presto iii programming algorithm paragraph changed 04-apr-2000 2.1 ?40 to 85 c and ?40 to 125 c temperature ranges added ( table 7. , table 9. and table 15. ) 80ns speed class in high speed ac measurement conditions 20-sep-2000 2.2 an620 reference removed 29-nov-2000 2.3 note changed ( figure 8. ) 27-feb-2001 2.4 sdip42 package added ( figure 11. , ta bl e 1 4 ) 27-nov-2003 2.5 fdip42w package lens changed 28-mar-2006 3 document converted to new template (sections added, information moved). packages are ecopack? compliant. obsolete product(s) - obsolete product(s)
m27c322 24/24 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 authorize representative of st, st products are not designed, authorized or warranted for use in military, 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. 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. ? 2006 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 obsolete product(s) - obsolete product(s)

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