DM77S181 NSC | Alldatasheet

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a g GA National

2 Semiconductor

o 5 | DM77/87S181, DM77/87S281 4 . 8 (1024 x 8) 8192-Bit TTL PROMs a = General Description Features © | These Schottky memories are organized in the popular ™ Advanced titanium-tungsten (Ti-W) fuses @ | 1024 words by 8 bits configuration. Memory enable inputs m@ Schottky-clamped for high speed & | are provided to control the output states. When the device Address access—45 ns max 2 is enabled, the outputs represent the contents of the select- Enable access—30 ns max > | ed word. When disabled, the 8 outputs go to the “OFF” or Enable recovery—30 ns max © | high impedance state. ® PNP inputs for reduced input loading &H | PROMs are shipped from the factory with lows in all loca- _m All DC and AC parameters guaranteed over S | tions. A high may be programmed into any selected location temperature S | by following the programming instructions. 1 Low voltage TRI-SAFE™ programming a w TRI-STATE® outputs Block Diagram SS Mm ry ower Ay x a (MEMORY MATRIX Pin Names DECODER bd tT 4 bE 4 , = Lt 4 Ly Gi, G2, G3, G4 | Output Enables u 4:0:0:0:H:34:H [ono | Ground Hy OegseOeoeoeoneg i Fon Jf Fe Fe Ff FI oF By SOO a G3. BUF iy ENABLE Gare a 06 054 03 a2 a a0 TU/e194—1 3-66

i=] Connection Diagrams 5 Dual-In-Line Package Plastic Leaded Chip Carrier (PLCC) 2 YO gere See = ws ab Vee gene See 5 a2 23,—a8 432 1 28 27 26 = ASS 22-9 Mas 255 G4 Ps Mos 21h—G4 a6 ue 8 35 20--Gi R47 235 63 = vet 19-63 aie 2 & 2 M7 18F— 62 As 21 NC g 40-48 17-07 Nc—410 20/07 a ao-49 16-6 aon 19 06 2 aio 15-05 12.1314 15 16 17 18 S 12 14 ot a“ s822338 = Gnd 412 13-03 é x tuoisi-3 | D Nn TUD/s196-2 Top View 2 Top View Order Number DM87S181V Order Number DM77/87S181J, 2814, 181AJ, 281Ad, See NS Package Number V28A DM87S181N, 281N, 181AN, 281AN ‘See NS Package Number J24A, J24F, N24A or N24C

Ordering Information

Commercial Temp Range (0°C to +70°C) 24-Pin 24-Pin Max Access Parameter/Order Number | standard DIP_| Narrow DIP Time (ns) . OMB7S1614 a a DMa75167AN a OMB7S181N a OMe7SI8IV a DMB7S251A) a oMa7S2814 a OMB7S28;AN ee OM@7S269N a Sa Military Temp Range (—55°C to + 125°C) 24-Pin 24-Pin Max Access Parameter/Order Number Standard DIP Narrow DIP OMT7Si8i4 a | OM775281AI a DM77S2614 a 3-67

o a Absolute Maximum Ratings (note 1) Operating Conditions o If Military/Aerospace specified devices are required, Min Max = Units = please contact the National Semiconductor Sales ‘Supply Voltage (Vgc) a Office/Distributors for availability and specifications. Military 4.50 5.50 v % | Supply Voltage (Note 2) -0.5V to +7.0V Commercial 4.75 5.25 v Pry Input Voltage (Note 2) —-1.2V to +5.5V Ambient Temperature (Ta) 5S | output Voltage (Note 2) -0.5V to +5.5V Military ~55 +125 °C =: St T est +1806 Commercial 0 +70 °C a forage Temperature Tee to Logical “0” input Voltage 0 08 Vv — Lead Temp. (Soldering, 10 seconds) 300°C. ane > " Logical “1” input Voltage 2.0 55 Vv 2 ESD to be determined. | Note 1: Absolute maximum ratings are those values beyond which the do- Nn vice may be permanently damaged. They do not mean that the device may be operated at these values. FA Note 2: These limits do not apply during programming. For the programming ratings, refer to the programming instructions. 2 . =| DC Electrical Characteristics (note 1) gz nt DM77S181 DM87S181 = | symboi DM77S281 DM87S281 Units o| sy [ min | typ | Max | min | typ | Max | | tnputoad Current | Voc=Maxvn=o4sv || -e0 | -250| [| 80 | -250[ pa WH Input Leakage Current Voc = Max, Vin = 2.7V Pt fees | as | BA Veo=Maxvw=ssv [| | | so | || 10 | ma Vou___| Low Level Output Voltage | Voc = Min, lo. = 16 mA |_| oas | oso | | oas | oa | v Vi [towtevetinputvotage | TT oo [| oto |v Vin __[Hightevelinputvotage | feo | Teo Tv Ve | inputciampvotage | Vog=Minw=-tema || -oa| -12] | -oa| -12 |v [e) Input Capacitance Voc = 5.0V, Vin = 2.0V f Ta = 25°C, 1 MHz Pp Co Output Capacitance Voc = 5.0V, Vo = 2.0V F Ta = 25°C, 1 MHz, Outputs Off pI Ico Power Supply Current Voc = Max, Input Grounded All Outputs Open 170 115, 170 mA los Short Circuit Vo = OV, Voc = Max _ _ Output Current (Note 2) 70 70 | mA Taz | Output Leakage Vco = MaxVo=oasviozav| |_| seo) | vs0 | pa Von | OutputVottageHigh | Ion = -2.0ma peafoe{ | [ tty lou = — 65mA | | [ fe«afset Tv ‘Note 1: These limits apply over the entire operating range unless stated otherwise. All typical values are for Voc ~ 5.0V and Ta = 25°C. Note 2: During log measurement, only one output at a time should be grounded. Permanent damage may otherwise result. 3-68