document # eprom102 rev a revised march 2009 py263/py264 8k x 8 reprogrammable prom features eprom technology for reprogramming high speed C 25/35/45/55 ns (commercial) C 25/35/45/55 ns (military) low power operation: C 660 mw commercial C 770 mw military single 5v10% power supply windowed devices for reprogramming fully ttl compatible inputs and outputs standard pinout (jedec approved) C 24-pin 300 mil windowed cerdip (py263) C 24-pin 300 mil non-windowed plastic dip (py263) C 24-pin 600 mil windowed cerdip (py264) C 24-pin 600 mil non-windowed plastic dip (py264) functional block diagram pin config uration dip (p8, wd2) note: window on wd2 package only description the py263 and py264 are 8kx8 cmos proms. the devices are available in windowed packages which when exposed to uv light, the memory content in the prom is erased and can be reprogrammed. eprom technology is used in the memory cells for programming. the eprom requires a 12.5v for programming. devices are tested to insure that performance of the device meets the dc and ac specifcation limits after customer programming. to perform a read operation from the device, cs is low. the memory contents in the address established by the address pins (a 0 to a 12 ) will become available on the out - puts (o 0 to o 7 ). the py263 is available in 24-pin 300 mil ceramic dips (windowed) and plastic dips (non-windowed). the py264 is available in 24-pin 600 mil ceramic dips (windowed) and plastic dips (non-windowed).
py263/py264 - 8k x 8 reprogrammable prom page 2 document # eprom102 rev a dc electrical characteristics (over recommended operating temperature & supply voltage) (2) sym parameter value unit v cc power supply pin with respect to gnd -0.5 to +7 v v term terminal voltage with respect to gnd (up to 7.0v) -0.5 to vcc + 0.5 v v pp program voltage 13 v t a operating temperature -55 to +125 c t bias temperature under bias -55 to +125 c t stg storage temperature -65 to +150 c p t power dissipation 1.0 w i out dc output current 50 ma maximum r atings (1) recommended operatin g conditions grade (2) ambient temp gnd v cc commercial 0c to 70c 0v 5.0v 10% military -55c to +125c 0v 5.0v 10% capacitances (4) (v cc = 5.0v, t a = 25c, f = 1.0mhz) sym parameter conditions typ unit c in input capacitance v in =0v 10 pf c out output capacitance v out =0v 10 pf sym parameter test conditions py263 / py264 unit min max v ih input high voltage 2.0 v cc v v il input low voltage -0.5 (3) 0.8 v v hc cmos input high voltage v cc - 0.2 v cc + 0.5 v v lc cmos input low voltage -0.5 (3) 0.2 v v ol output low voltage (ttl load) i ol =+16 ma, v cc = min. 0.4 v v oh output high voltage (ttl load) i oh = - 4 ma, v cc = min 2.4 v i li input leakage current v cc = max, v in = gnd to v cc com -10 +10 a mil -40 +40 a i lo output leakage current v cc = max, ce = v ih , v out = gnd to v cc com -10 +10 a mil -40 +40 a v pp programming supply voltage 12 13 v i pp programming supply current 50 ma v ihp input high programming voltage 4.75 v v ilp input low programming voltage 0.4 v power dissipation characteristics vs. speed sym parameter temperature range -25 -35 -45 -55 unit i cc dynamic operating current commercial 120 100 100 100 ma military 140 120 120 120 ma * v cc = 5.5v. tested with outputs open. f = max. switching inputs are 0v and 3v. cs = v il .
py263/py264 - 8k x 8 reprogrammable prom page 3 document # eprom102 rev a sym parameter -25 -35 -45 -55 unit min max min max min max min max t aa address to output valid 25 35 45 55 ns t hzcs chip select inactive to high z 12 20 30 35 ns t acs chip select active to output valid 12 20 30 35 ns t pu chip select active to power-up 0 0 0 0 ns ac electrical characteristicsread cycle (v cc = 5v 10%, all temperature ranges) (2) timing waveform of read cycle notes: 1. stresses greater than those listed under maximum r atings may cause permanent damage to the device. this is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specifcation is not implied. exposure to maximum rating conditions for extended periods may affect reliability. 2. extended temperature operation guaranteed with 400 linear feet per minute of air fow. 3. transient inputs with v il and i il not more negative than C3.0v and C100ma, respectively, are permissible for pulse widths up to 20 ns. 4. this parameter is sampled and not 100% tested.
py263/py264 - 8k x 8 reprogrammable prom page 4 document # eprom102 rev a if the device is subjected to wavelengths of light below 4000 angstroms, device erasure will commence. it is therefore recommended to use an opaque label over the window in the event the device will be exposed to light - ing for a long time. the uv dose for erasure requires a wavelength of 2,537 angstroms for a minimum dose of 25 wsec/cm 2 . if using a uv lamp of 12 mw/cm 2 , the expo - sure time is estimated to be 35 minutes. devices should be positioned within 1 inch of the lamp during the erasure process. permanent damage can occur to the devices if exposed to uv light for an extended period of time. device erasure read mode reading the addressed content is the normal operating mode for a programmed device. signals are at normal ttl levels. addressing is applied to the 13 address pins and cs is low. under these conditions, the addressed location contents are presented to the output pins. mode selection pin function mode read or output disable a 12 a 11 a 10 a 9 a 8 cs o 7 -o 0 program na v pp latch pgm vfy cs d 7 -d 0 read a 12 a 11 a 10 a 9 a 8 v il o 7 -o 0 output disable a 12 a 11 a 10 a 9 a 8 v ih high z program v ilp v pp v ilp v ilp v ihp v ilp d 7 -d 0 program inhibit v ilp v pp v ilp v ihp v ihp v ilp high z program verify v ilp v pp v ilp v ihp v ilp v ilp o 7 -o 0 blank check v ilp v pp v ilp v ihp v ilp v ilp o 7 -o 0 programming pinouts
py263/py264 - 8k x 8 reprogrammable prom page 5 document # eprom102 rev a ac test conditions input pulse levels gnd to 3.0v input rise and fall times 3ns input timing reference level 1.5v output timing reference level 1.5v output load see figures 1 and 2 figure 1. output load figure 2. thevenin equivalent * including scope and test fxture. note: because of the ultra-high speed of the py263/py264, care must be taken when testing this device; an inadequate setup can cause a normal functioning part to be rejected as faulty. long high-inductance leads that cause supply bounce must be avoided by bringing the v cc and ground planes directly up to the contactor fngers. a 0.01 f high frequency capacitor is also required between v cc and ground.
py263/py264 - 8k x 8 reprogrammable prom page 6 document # eprom102 rev a ordering information
py263/py264 - 8k x 8 reprogrammable prom page 7 document # eprom102 rev a ceramic dual inline pac kage (windowed) ceramic dual inline pac kage (windowed) pkg # wd1 # pins 24 (300 mil) symbol min max a - 0.200 b 0.014 0.026 b2 0.045 0.065 c 0.008 0.018 d - 1.280 e 0.220 0.310 ea 0.300 bsc e 0.100 bsc l 0.125 0.200 q 0.015 0.060 s1 0.005 - 0 15 wd 0.175 pkg # wd2 # pins 24 (600 mil) symbol min max a 0.175 0.225 b 0.015 0.020 b2 0.045 0.065 c 0.009 0.012 d - 1.280 e 0.505 0.550 ea 0.600 bsc e 0.100 bsc l 0.125 0.200 q 0.015 0.060 s1 0.005 - 0 15 wd 0.280
py263/py264 - 8k x 8 reprogrammable prom page 8 document # eprom102 rev a plastic dual inline pac kage (non-windowed) plastic dual inline pac kage (non-windowed) pkg # p4 # pins 24 (300 mil) symbol min max a - 0.210 a1 0.015 - b 0.014 0.022 b2 0.045 0.070 c 0.008 0.014 d 1.230 1.280 e1 0.240 0.280 e 0.280 0.325 e 0.100 bsc eb - 0.430 l 0.115 0.160 0 15 pkg # p8 # pins 24 (600 mil) symbol min max a 0.155 0.200 a1 0.015 0.060 b 0.015 0.020 b2 0.055 0.065 c 0.009 0.012 d 1.230 1.260 e1 0.530 0.550 e 0.570 0.625 e 0.100 bsc eb 0.610 0.685 l 0.115 0.160 0 15
py263/py264 - 8k x 8 reprogrammable prom page 9 document # eprom102 rev a revisions document number eprom102 document title py263 / py264 8k x 8 programmable prom rev issue date orig inator description of change or jul-2007 jdb new data sheet a mar-2009 jdb added py263 (300 mil)
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