product selection guide parameter 191c/291c-25 191c/291c-35 191c/291c-45 191c/291c-55 address access time (max) 25 ns 35 ns 45 ns 55 ns cs to output valid time (max) 12 ns 20 ns 20 ns 20 ns high speed 2k x 8 cmos prom/rprom key features ultra-fast access time pin compatible with am27s191/291 ? t acc = 25 ns and n82s191 bipolar proms ? cs = 12 ns immune to latch-up low power consumption ?up to 200 ma fast programming esd protection exceeds 2000v available in 300 mil dip and pldcc general description the ws57c191c/291c is an extremely high performance 16k uv erasable electrically r e-p rogrammable r ead o nly m emory (rprom). it is manufactured in an advanced cmos technology which enables it to operate at bipolar prom speeds while consuming only 25% of the power required by its bipolar counterparts. the ws57c191c/291c is also configured in the standard bipolar prom pinout which provides an easy upgrade path for systems which are currently using bipolar proms. the ws57c191c is packaged in a conventional 600 mil dip package as well as a plastic leaded chip carrier (pldcc) and a ceramic leadless chip carrier (cllcc). the ws57c291c is packaged in a space saving 300 mil dip package configuration. both are available in commercial, industrial, and military operating temperature ranges. ws57c191c/291c v cc a 8 a 9 a 10 cs1/v pp cs2 cs3 o 7 o 6 o 5 o 4 o 3 a 7 a 6 a 5 a 4 a 3 a 2 a 1 a 0 o 0 o 1 o 2 gnd a 10 cs1/v pp cs2 cs3 nc o 7 o 6 a 5 a 6 a 7 v cc a 8 a 9 nc a 4 a 3 a 2 a 1 a 0 nc o 0 o 1 o 2 nc o 3 o 4 o 5 gnd 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 1 432 28 27 26 25 24 23 22 21 20 19 5 6 7 8 9 10 11 12 13 14 15 16 17 18 top view chip carrier cerdip/plastic dip pin configuration 2-7 row decoder eprom array 16,384 bits column decoder sense amplifiers 8 cs2 cs3 outputs cs1/ v pp a0 - a4 column addresses a5 - a10 row addresses 6 5 block diagram
dc read chara cteristics over operating range. (see above) symbol parameter test conditions min max units v il input low voltage (note 3) ?.1 0.8 v v ih input high voltage (note 3) 2.0 v cc + 0.3 v v ol output low voltage i ol = 16 ma 0.4 v v oh output high voltage i oh = 4 ma 2.4 v v cc active current v cc = 5.5v, f = 0 mhz comm'l 30 ma i cc1 (cmos) (note 1), output not loaded industrial 35 ma add 2ma/mhz for ac operation military 35 ma v cc active current v cc = 5.5v, f = 0 mhz comm'l 40 ma i cc2 (ttl) (note 2), output not loaded industrial 50 ma add 2ma/mhz for ac operation military 50 ma i li input leakage current v in = 5.5v or gnd ?0 10 a i lo output leakage current v out = 5.5 v or gnd ?0 10 a ws57c191c/291c 2-8 opera ting range range temperature v cc commercial 0 c to +70 c +5v 10% industrial 40 c to +85 c +5v 10% military 55 c to +125 c +5v 10% absolute maximum ra tings* storage temperature ............................ 65 to + 150 c voltage on any pin with respect to ground .................................... 0.6v to +7v v pp with respect to ground ................... 0.6v to + 14v esd protection .................................................. > 2000v notes: 1. cmos inputs: gnd 0.3v or v cc 0.3v. 2. ttl inputs: v il 0.8v, v ih 3 2.0v. 3. these are absolute voltages with respect to device ground pin and include all overshoots due to system and/or tester noise. do not attempt to test these values without suitable equipment. * notice: stresses above those listed under "absolute maximum ratings" 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 specification is not implied. exposure to absolute maximum rating conditions for extended periods of time may affect device reliability. pins cs1/ cs2 cs3 v cc outputs mode v pp read v i l v i h v i h v c c d out output disable v i h x x v c c high z output disable x v i l x v c c high z program v pp x x v c c d in program verify v i l v i h v i h v c c d out output disable x x v i l v cc high z mode selection
ws57c191c/291c 2-9 a c read chara cteristics over operating range. (see above) parameter symbol 191c/291c-25 191c/291c-35 191c/291c-45 191c/291c-55 units min max min max min max min max address to output delay t acc 25 35 45 55 cs to output delay t cs 12 20 20 20 ns output disable to output floa t * t df 12 20 20 20 address to output hold t oh 0 0 0 0 * s ampled, not 100% tested a c read timing dia gram valid addresses outputs t acc t oh t cs t df valid cs
ws57c191c/291c 2-10 symbol parameter conditions ty p (5) max units c i n input capacitance v i n = 0v 4 6 pf c out output capacitance v out = 0v 8 12 pf c vpp v pp capacitance v pp = 0 v 18 25 pf cap a cit anc e (4) t a = 2 5 c, f = 1 mhz 30 pf (including scope and jig capacitance) 98 w 2.01 v d.u.t. a.c. testing input/output w a veform test lo ad (high impedance test systems) 3.0 0.0 1.5 1.5 test points note: 6. provide adequate decoupling capacitance as close as possible to this device to achieve the published a.c. and d.c. parameters. a 0.1 microfarad capacitor in parallel with a 0.01 microfarad capacitor connected between v cc and ground is recommended. inadequate decoupling may result in access time degradation or other transient performance failures. notes: 4. this parameter is only sampled and is not 100% tested. 5.typical values are for ta = 25 c and nominal supply voltages. a.c. testing inputs are driven at 3.0 v for a logic "1" and 0.0 v for a logic "0." timing measurements are made at 1.5 v for input and output transitions in both directions.
2-11 ws57c191c/291c 1.2 1.1 1.0 0.9 0.8 -55 -35 -15 5 25 45 65 85 105 125 ambient temperature (?) normalized i cc 1.60 1.40 1.20 1.00 0.80 0.60 4.0 4.5 5.0 5.5 6.0 supply voltage ( v ) normalized i cc 1.6 1.4 1.2 1.0 0.8 0.6 -55 -35 -15 5 25 45 65 85 105 125 ambient temperature ( ? ) normalized t aa 40.0 35.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 0.0 200 400 600 800 1000 capacitance ( pf ) delta t aa ( ns ) normalized supply current vs. supply voltage typical access time change vs. output loading normalized t a a vs. ambient temperature normalized supply current vs. ambient temperature
pr ogramming informa tion dc chara cteristics (t a = 25 5 c, v cc = 6.25 v 0.25 v, v pp = 12.75 0.25 v) symbols parameter min max units i li input leakage current ?0 10 a (v in = v cc or gnd) i pp v pp supply current during 60 ma programming pulse i cc v cc supply current 25 ma v ol output low voltage during verify 0.45 v (i ol = 16 ma) v oh output high voltage during verify 2.4 v (i oh = 4 ma) ws57c191c/291c 2-12 symbols parameter min typ max units t as address setup time 2 s t df chip disable setup time 30 ns t ds data setup time 2 s t pw program pulse width 100 200 s t dh data hold time 2 s t cs chip select delay 30 ns t rf v pp rise and fall time 1 s notes: 8. v pp must not be greater than 13 volts including overshoot. a c chara cteristics (t a = 25 5 c, v cc = 6.25 v 0.25 v, v pp = 12.75 0.25 v) pr ogramming w a veform address stable addresses v i h v i l v pp v i h v i h v i l v i l cs1/v pp data t as t df t ds t pw t dh t cs t rf t rf data out data in don't care cs2/cs3 v i h v i l
ordering information speed package package operating wsi part number (ns) type drawing temperature manufacturing range procedure ws57c191c ws57c191c-25d 25 24 pin cerdip, 0.6" d1 comm? standard ws57c191c-25j 25 28 pin pldcc j3 comm? standard ws57c191c-25p 25 24 pin plastic dip, 0.6" p2 comm? standard ws57c191c-35d 35 24 pin cerdip, 0.6" d1 comm? standard ws57c191c-35j 35 28 pin pldcc j3 comm? standard ws57c191c-35p 35 24 pin plastic dip, 0.6" p2 comm? standard ws57c191c-45d 45 24 pin cerdip, 0.6" d1 comm? standard ws57c191c-45di 45 24 pin cerdip, 0.6" d1 industrial standard ws57c191c-45dmb * 45 24 pin cerdip, 0.6" d1 military mil-std-883c ws57c191c-45j 45 28 pin pldcc j3 comm? standard ws57c191c-45p 45 24 pin plastic dip, 0.6" p2 comm'l standard ws57c191c-55d 55 24 pin cerdip, 0.6" d1 comm? standard ws57c191c-55dmb * 55 24 pin cerdip, 0.6" d1 military mil-std-883c ws57c291c ws57c291c-25s 25 24 pin plastic dip, 0.3" s1 comm'l standard ws57c291c-25t 25 24 pin cerdip, 0.3" t1 comm? standard ws57c291c-35s 35 24 pin plastic dip, 0.3" s1 comm'l standard ws57c291c-35t 35 24 pin cerdip, 0.3" t1 comm? standard ws57c291c-35tmb * 35 24 pin cerdip, 0.3" t1 military mil-std-883c ws57c291c-45s 45 24 pin plastic dip, 0.3" s1 comm'l standard ws57c291c-45t 45 24 pin cerdip, 0.3" t1 comm'l standard WS57C291C-45TI 45 24 pin cerdip, 0.3" t1 industrial standard ws57c291c-45tmb * 45 24 pin cerdip, 0.3" t1 military mil-std-883c ws57c291c-55t 55 24 pin cerdip, 0.3" t1 comm? standard ws57c291c-55tmb * 55 24 pin cerdip, 0.3" t1 military mil-std-883c 2-13 ws57c191c/291c programming/algorithms/erasure/programmers refer to page 5-1 note: 9. the actual part marking will not include the initials "ws." *smd product. see section 4 for desc smd number. the ws57c191c and ws57c291c are programmed using algorithm d shown on page 5-9.
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