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DL121/D Rev 6, Jan-2000 ON Semiconductor LS TTL Data ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC) SCILLC reserves the right to make changes without further notice to any products herein SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and vary in different applications and actual performance may vary over time All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts SCILLC does not convey any license under its patent rights nor the rights of others SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part SCILLC is an Equal Opportunity/Affirmative Action Employer PUBLICATION ORDERING INFORMATION NORTH AMERICA Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: ONlit@hibbertco.com N American Technical Support: 800-282-9855 Toll Free USA/Canada EUROPE: LDC for ON Semiconductor - European Support German Phone: (+1) 303-308-7140 (M-F 2:30pm to 5:00pm Munich Time) Email: ONlit-german@hibbertco.com French Phone: (+1) 303-308-7141 (M-F 2:30pm to 5:00pm Toulouse Time) Email: ONlit-french@hibbertco.com English Phone: (+1) 303-308-7142 (M-F 1:30pm to 5:00pm UK Time) Email: ONlit@hibbertco.com ASIA/PACIFIC: LDC for ON Semiconductor - Asia Support Phone: 303-675-2121 (Tue-Fri 9:00am to 1:00pm Hong Kong Time) Toll Free from Hong Kong 800-4422-3781 Email: ONlit-asia@hibbertco.com JAPAN: ON Semiconductor, Japan Customer Focus Center 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan 141-8549 Phone: 81-3-5740-2745 Email: r14525@onsemi.com Fax Response Line: 303-675-2167 800-344-3810 Toll Free USA/Canada ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative DL121/D 01/00 DL121 REV LS TTL Data ON Semiconductor Formerly a Division of Motorola LS TTL Data Formerly Titled “FAST and LS TTL Data” Please Note: As ON Semiconductor has exited the FAST TTL business, all FAST data sheets have been removed from this publication For further assistance, please contact your local ON Semiconductor representative DL121/D Rev 6, Jan–2000 SCILLC, 2000 Previous Edition 1992 “All Rights Reserved’’ ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC) SCILLC reserves the right to make changes without further notice to any products herein SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and vary in different applications and actual performance may vary over time All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts SCILLC does not convey any license under its patent rights nor the rights of others SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part SCILLC is an Equal Opportunity/Affirmative Action Employer PUBLICATION ORDERING INFORMATION North America Literature Fulfillment: Literature Distribution Center for ON Semiconductor P.O Box 5163, Denver, Colorado 80217 USA Phone: 303–675–2175 or 800–344–3860 Toll Free USA/Canada Fax: 303–675–2176 or 800–344–3867 Toll Free USA/Canada Email: ONlit@hibbertco.com ASIA/PACIFIC: LDC for ON Semiconductor – Asia Support Phone: 303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time) Toll Free from Hong Kong 800–4422–3781 Email: ONlit–asia@hibbertco.com N American Technical Support: 800–282–9855 Toll Free USA/Canada EUROPE: LDC for ON Semiconductor – European Support German Phone: (+1) 303–308–7140 (M–F 2:30pm to 5:00pm Munich Time) Email: ONlit–german@hibbertco.com French Phone: (+1) 303–308–7141 (M–F 2:30pm to 5:00pm Toulouse Time) Email: ONlit–french@hibbertco.com English Phone: (+1) 303–308–7142 (M–F 1:30pm to 5:00pm UK Time) Email: ONlit@hibbertco.com JAPAN: ON Semiconductor, Japan Customer Focus Center 4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–8549 Phone: 81–3–5740–2745 Email: r14525@onsemi.com Fax Response Line: 303–675–2167 800–344–3810 Toll Free USA/Canada ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative http://onsemi.com CONTENTS Page CHAPTER — SELECTION INFORMATION, LS TTL CHAPTER — CIRCUIT CHARACTERISTICS Family Characteristics 10 LS TTL 10 Circuit Features 10 Input Configuration 11 Input Characteristics 11 Output Configuration 12 Output Characteristics 12 AC Switching Characteristics 13 LS ESD Characteristics 14 CHAPTER — DESIGN CONSIDERATIONS, TESTING AND APPLICATIONS ASSISTANCE FORM DESIGN CONSIDERATIONS Noise Immunity Power Consumption Fan-In and Fan-Out Wired-OR Applications Unused Inputs Input Capacitance Line Driving Output Rise and Fall Times Interconnection Delays Absolute Maximum Ratings DEFINITION OF SYMBOLS AND TERMS Currents Voltages AC Switching Parameters and Waveforms TESTING DC Test Circuits AC Test Circuits APPLICATIONS ASSISTANCE FORM 15 16 16 16 16 18 18 18 18 19 19 20 21 21 21 22 24 24 25 27 CHAPTER — DATA SHEETS 29 CHAPTER — RELIABILITY DATA 259 “RAP” Reliability Audit Program 261 CHAPTER — PACKAGE INFORMATION INCLUDING SURFACE MOUNT Surface Mount Information Tape and Reel Information Package Outlines Worldwide Sales Offices Document Definitions http://onsemi.com 263 265 266 267 269 270 Device SN74LS00 SN74LS04 SN74LS05 SN74LS08 SN74LS14 SN74LS32 SN74LS38 SN74LS42 SN74LS47 SN74LS74A SN74LS76A SN74LS85 SN74LS86 SN74LS109A SN74LS122 SN74LS125A SN74LS132 SN74LS138 SN74LS139 SN74LS145 SN74LS147 SN74LS151 SN74LS153 SN74LS156 SN74LS157 SN74LS161A SN74LS164 SN74LS165 SN74LS166 SN74LS174 SN74LS175 SN74LS193 SN74LS194A SN74LS195A SN74LS221 SN74LS240 SN74LS245 SN74LS247 SN74LS251 SN74LS253 SN74LS257B SN74LS259 SN74LS260 SN74LS273 SN74LS280 SN74LS283 SN74LS298 SN74LS299 SN74LS365A SN74LS373 SN74LS377 SN74LS393 SN74LS541 SN74LS640 SN74LS670 SN74LS682 Description Quad 2-Input NAND Gate Hex Inverter Hex Inverter Quad 2-Input AND Gate Schmitt Triggers Dual Gate/Hex Inverter Quad 2-Input OR Gate Quad 2-Input NAND Buffer One-of-Ten Decoder BCD to 7-Segment Decoder/Driver Dual D–Type Positive Edge–Triggered Flip-Flop Dual JK Flip-Flop with Set and Clear 4-Bit Magnitude Comparator Quad 2–Input Exclusive OR Gate Dual JK Positive Edge-Triggered Flip-Flop Retriggerable Monostable Multivibrators Quad 3-State Buffers Quad 2-Input Schmitt Trigger NAND Gate 1-of-8 Decoder/Demultiplexer Dual 1-of-4 Decoder/Demultiplexer 1-of-10 Decoder/Driver Open-Collector 10-Line–to–4–Line and 8-Line–to–3–Line Priority Encoders 8-Input Multiplexer Dual 4-Input Multiplexer Dual 1-of-4 Decoder/Demultiplexer Quad 2-Input Multiplexer BCD Decade Counters/4–Bit Binary Counters Serial-In Parallel–Out Shift Register 8-Bit Parallel-To-Serial Shift Register 8-Bit Shift Registers Hex D Flip-Flop Quad D Flip-Flop Presettable 4–Bit Binary Up/Down Counter 4-Bit Bidirectional Universal Shift Register Universal 4-Bit Shift Register Dual Monostable Multivibrators with Schmitt–Trigger Inputs Octal Buffer/Line Driver with 3-State Outputs Octal Bus Transceiver BCD–to–Seven–Segment Decoders/Drivers 8-Input Multiplexer with 3-State Outputs Dual 4-Input Multiplexer with 3-State Outputs Quad 2-Input Multiplexer with 3-State Outputs 8-Bit Addressable Latch Dual 5-Input NOR Gate Octal D Flip-Flop with Clear 9-Bit Odd/Even Parity Generators/Checkers 4-Bit Binary Full Adder with Fast Carry Quad 2-Input Multiplexer with Storage 8-Bit Shift/Storage Register with 3-State Outputs 3-State Hex Buffers Octal Transparent Latch with 3-State Outputs; Octal D-Type Flip-Flop with 3-State Output Octal D Flip-Flop with Enable Dual 4-Stage Binary Counter Octal Buffer/Line Driver with 3–State Outputs Octal Bus Transceivers x Register File with 3-State Outputs 8-Bit Magnitude Comparators http://onsemi.com Page 30 32 34 36 38 41 43 45 49 53 57 59 64 66 69 78 81 84 89 93 97 102 106 110 114 118 124 129 134 139 143 147 153 158 163 169 173 175 180 185 189 194 199 201 205 207 212 217 223 226 232 236 241 244 248 253 CHAPTER Selection Information LS TTL http://onsemi.com GENERAL INFORMATION TTL in Perspective performance We therefore recommend the VHC, High Speed and FACT products for all new 5.0 Volt designs Further improvements in power reduction can be achieved using the LVX, LCX or VCX running at 3.3 Volts Improvements in electrostatic discharge susceptibility in these newer CMOS products now make them the obviate the need for LSTTL in new designs The VHC family is faster and lower power with similar drive characteristics compared to LSTTL We highly recommend new designs use one or more of these CMOS families Since its introduction, TTL has become the most popular form of digital logic It has evolved from the original gold-doped saturated 7400 logic, to Schottky-Clamped logic, and finally to the modern advanced families of TTL logic The popularity of these TTL families stem from their ease of use, low cost, medium-to-high speed operation, and good output drive capability Low Power Schottky (LSTTL) was the industry standard logic family for many years Since its inception, several more modern families have come out, with equal or better TTL Family Comparisons General Characteristics for Schottky TTL Logic (All Maximum Ratings) Characteristic Symbol 74LSxxx Unit VCC ± 5% Vdc TA to 70 °C Operating Voltage Range Operating Temperature Range Input Current IIN Output Drive Standard Output Buffer Output IIH 20 IIL – 400 µA IOH – 0.4 mA IOL 8.0 mA ISC – 20 to – 100 mA IOH – 15 mA IOL 24 mA ISC – 40 to – 225 mA Speed/Power Characteristics for Schottky TTL Logic(1) (All Typical Ratings) Characteristic Symbol Typ Quiescent Supply Current/Gate IG 0.4 mA Power/Gate (Quiescent) PG 2.0 mW Propagation Delay 9.0 ns Speed Power Product — 18 pJ Clock Frequency (D-F/F) fmax 33 MHz Clock Frequency (Counter) fmax 40 MHz NOTES: Specifications are shown for the following conditions: NOTES: a) VCC = 5.0 Vdc (AC), NOTES: b) TA = 25°C, NOTES: c) CL = 15 pF http://onsemi.com Unit Functional Selection Abbreviations S A B = Synchronous = Asynchronous = Both Synchronous and Asynchronous 2S = 2-State Output 3S = 3-State Output OC = Open-Collector Output Inverters Description Hex Multiplexers Type of Output No Description 2S OC 04 05 Quad 2-to-1, Non-Inverting Type of Output No 2S 3S 3S 2S 3S 2S 3S 2S 157 257B 258B 153 253 151 251 298 Type of Output No 2S 2S 147 148 Type of Output No 3S 670 Type of Output No 2S OC 2S 2S 139 156 138 42 No of Bits Type of Output No 8 3S 2S 373 259 Quad 2-to-1, Inverting Dual 4-to-1, Non-Inverting AND Gates Description Type of Output No Quad 2-Input 2S 08 8-to-1 NAND Gates Encoders Description Type of Output No Description Quad 2-Input 2S 00 10-to-4-Line BCD 8-to-3-Line Priority Encoder OR Gates Register Files Description Type of Output No Quad 2-Input 2S 32 Description 4x4 NOR Gates Description Dual 5-Input Type of Output 2S Decoders/Demultiplexers No Description 260 Dual 1-of-4 Exclusive OR Gates Description Type of Output No Quad 2-Input 2S 86 1-of-8 1-of-10 Latches Schmitt Triggers Description Hex, Inverting Quad 2-Input NAND Gate Description Type of Output No 2S 2S 14 132 Clock Edge No Pos Neg 74A 76A Pos 109A Transparent, Non-Inverting Addressable SSI Flip-Flops Description Dual D w/Set & Clear Dual JK w/Set & Clear Individual J, K, CP, SD, CD Inputs Dual JK w/Set & Clear http://onsemi.com Shift Registers Description Mode* No of Bits Type of Output SR 8 4 2S 2S 2S 2S 2S 3S X X X X X X Serial In-Parallel Out Parallel In-Serial Out Parallel In-Parallel Out Parallel In-Parallel Out, Bidirectional SL Hold X X X X X X Reset No A A A A A 164 165 166 194A 195A 299 * SR = Shift Right * SL = Shift Left Asynchronous Counters — Negative Edge-Triggered Description Load Set Dual 4-Bit Binary Reset No X 393* Cascadable Synchronous Counters — Positive Edge-Triggered Description Type of Output Load Reset No 2S 2S S S A S 161A 163A * The 716 and 718 are positive edge-triggered 4-Bit Binary Display Decoders/Drivers with Open-Collector Outputs Description No 1-of-10 BCD-to-7 Segment 145* 247* MSI Flip-Flops/Registers Description D-Type, Non-Inverting D-Type, Q and Q Outputs Arithmetic Operators 2S 2S 2S 3S 2S Description 283 Magnitude Comparators 8-Bit with Output Enable 8 No 4-Bit Adder 4-Bit 8-Bit Type of Output Set or Reset Clock Enable X No 377 174 273 374 175 A A A Buffers/Line Drivers Description Description No of Bits Type of Output P=Q P>Q P