74 series logic IC datasheets!
part #description
74LS00Quad 2-Input NAND Gate
74LS01Quad 2-Input NAND Gate; Open Collector Outputs
74LS02Quad 2-Input NOR Gate
74LS03Quad 2-Input NAND Gate; Open Collector Outputs
74LS04Hex Inverter
74LS05Hex Inverter; Open Collector Outputs
74LS06Hex Inverter; Open Collector High Voltage Outputs
74LS07Hex Buffer; Open Collector High Voltage Outputs
74LS08Quad 2-Input AND Gate
74LS09Quad 2-Input AND Gate; Open Collector Outputs
74LS10Triple 3-Input NAND Gate
74LS11Triple 3-Input AND Gate
74LS12Triple 3-Input NAND Gate; Open Collector Outputs
74LS13Dual 4-Input NAND Schmitt Triggers
74LS14Hex Schmitt-Trigger Inverter
74LS15Triple 3-Input AND Gate; Open Collector Outputs
74LS16Hex Inverter; Open Collector 15V Outputs
74LS17Hex Driver; Open Collector 15V Outputs
74LS19NAND Schmitt Trigger; Totem Pole Output
74LS20Dual 4-Input NAND Gate
74LS21Dual 4-Input AND Gate; Open Collector Outputs
74LS22Dual 4-Input NAND Gate; Open Collector Outputs
74LS232x Four input NOR with Strobe
74LS252x Four input NOR with Strobe
74LS26Quad 2-Input NAND Gate; OC (15V)
74LS27Triple 3-Input NOR Gate
74LS28Quad 2-Input NOR Gates
74LS308-Input NAND Gate
74LS31Delay Element
74LS32Quad 2-Input OR Gate
74LS33Quad 2-Input NOR Gate; Open Collector Outputs
74LS37Quad 2-Input NAND Gates
74LS38Quad 2-Input NAND Gates; Open Collector Outputs
74LS394x Two input NAND, Open collector
74LS40Dual 4-Input NAND Gates
74LS42BCD to DECIMAL Decoder
74LS45Four-to-Ten (BCD to Decimal) DECODER, High current
74LS46BCD to Seven-Segment DECODER, Open Collector, lamp test and leading zero handling
74LS47BCD to 7-Segment Decoder; Open Collector Outputs (15V)
74LS48BCD to 7-Seg Decoder; Outputs Active high
74LS49BCD to 7-Seg Decoder-Outputs Active High
74LS502x (Two input AND) NOR (Two input AND), expandable
74LS51Dual AND-OR-INVERT Gates
74LS53NOR of Four Two input ANDs, expandable
74LS544-Wide AND-OR-INVERT Gate
74LS554-Wide; 2-Input AND-OR-INVERT Gate
74LS56Frequency Divider
74LS57Frequency Divider
74LS644-3-2-2 AND-OR-INVERT
74LS654-3-2-2 AND-OR-INVERT
74LS68Dual 4-Bit Decade or Binary Counter
74LS69Dual 4-Bit Decade or Binary Counter
74LS701x gated JK FLIPFLOP with preset and clear
74LS721x gated JK FLIPFLOP with preset and clear
74LS73Dual J-K Flip-Flop
74LS74Dual D-Type Flip-Flop
74LS75Dual 2-Bit D-Type Flip-Flop
74LS76Dual J-K Flip-Flop
74LS774-Bit D-Type Latch
74LS78Dual J-K Flip-Flop
74LS834-Bit Full Adder
74LS854-Bit Comparator
74LS86Quad Exclusive OR Gate
74LS90Decade Counter
74LS918-Bit Shift Register
74LS92Divide-By-12 Counter
74LS934-Bit Binary Counter
74LS94Four bit SHIFT register
74LS954-Bit Shift Register with Parallel Inputs and Outputs
74LS965-Bit Shift Register with Parallel Inputs and Outputs
74LS107Dual J-K Master Slave Flip-Flop
74LS109Dual J-K Flip-Flop
74LS112Dual J-K Flip-Flop with Preset and Clear
74LS113Dual J-K Flip-Flop
74LS114Dual J-K Flip-Flop
74LS1162x Four bit LATCH with clear
74LS121Monostable Multivibrator
74LS122Retriggerable Monostable Multivibrator
74LS123Retriggerable Monostable Multivibrator
74LS1242x Clock Generator or Voltage Controlled Oscillator
74LS125Quad Line Driver; 3-State Outputs
74LS126Quad Line Driver; 3-State Outputs
74LS1284x Two input NOR, Line driver
74LS130Retriggerable Monostable Multivibrator
74LS132Quad 2-Input NAND Schmitt Trigger
74LS13313-Input NAND Gate
74LS134Twelve input NAND, Tri-state
74LS1354x Two input XOR (exclusive or)
74LS136Quad 2-Input Exclusive OR Gates
74LS1373-Line to 8-Line Demultiplexer with Address Latch
74LS1383-Line to 8-Line Demultiplexer
74LS1392-Line to 4-Line Decoder/Demultiplexer
74LS1402x Four input NAND, 50 ohm Line Driver
74LS143Four bit counter and latch with 7-segment LED driver
74LS145BCD to Decimal Decoder/Driver
74LS14710-Line to 4-Line Priority Encoder
74LS1488-Line to 3-Line Priority Encoder
74LS15016-1 SELECTOR (multiplexer)
74LS1518-Line to 1-Line Multiplexer
74LS153Dual 4-Line to 1-Line Multiplexer
74LS1544-Bit Binary Decoder/Demultiplexer
74LS155Dual 2-Bit Binary Decoders/Demultiplexer
74LS156Dual 2-Bit Binary Decoders/Demultiplexer
74LS157Quad 2-Line to 1-Line Multiplexer
74LS158Quad 2-Line to 1-Line Multiplexer
74LS1594-16 DECODER (demultiplexer), Open collector
74LS1604-Bit Synchronous Programmable Counter
74LS1614-Bit Synchronous Programmable Counter
74LS1624-Bit Synchronous Programmable Counter
74LS1634-Bit Synchronous Programmable Counter
74LS1648-Bit Shift Register with Parallel Outputs
74LS1658-Bit Shift Register with Parallel Inputs
74LS1668-Bit Shift Register with Parallel Inputs
74LS168Up/Down 4-Bit Synchronous Counter
74LS169Up/Down 4-Bit Synchronous Counter
74LS17016-Bit RAM; Open Collector Outputs
74LS1734-Bit Quad D-Type Flip-Flops; 3-State Outputs
74LS174Hex D-Type Flip-Flop
74LS175Quad D-Type Flip-Flop
74LS180Four bit parity checker
74LS1814-bit Arithmetic Logic Unit
74LS182Look Ahead Carry Generator
74LS183Dual Carry-Save Full Adder
74LS190Synchronous Up/Down Decade Counter
74LS191Synchronous Up/Down 4-Bit Binary Counter
74LS192Synchronous Up/Down Decade Counter
74LS193Synchronous Up/Down 4-Bit Binary Counter
74LS1944-Bit Bidirectional Shift Register
74LS1954-Bit Parallel-Access Shift Register
74LS196Programmable Decade Counter
74LS197Programmable Decade Counter
74LS198Eight bit parallel in and out bidirectional SHIFT register
74LS199Eight bit parallel in and out bidirectional SHIFT register, JK serial input
74LS221Dual Monostable Multivibrator; Schmitt-Trigger Input
74LS240Octal Inverting Buffer/Transciever; 3-State Outputs
74LS241Octal Buffer/Transciever; 3-State Outputs
74LS242Quad 3-State Bus Transceiver
74LS2434-Bit Bidirectional Bus Driver
74LS244Octal 3-State Noninverting Buffer
74LS245Octal 3-State Noninverting Bus Transceiver
74LS247BCD to 7-Seg Decoder/Display Driver OC (15V)
74LS248BCD to 7-Seg Decoder/Display Driver OC (15V)
74LS249BCD to 7-Seg Decoder/Display Driver OC (15V)
74LS2518-Line to 1-Line Multiplexer; 3-State Outputs
74LS253Dual 4-Input Data Selecttor/Multiplexer 3-State
74LS256Dual 4-Bit Addressable Latch
74LS257Quad 2-Line to 1-Line Multiplexers; 3-State Outputs
74LS258Quad 2-Line to 1-Line Multiplexers; 3-State Outputs
74LS2598-Bit Adressable Latch
74LS260Dual 5-Input NOR Gate
74LS266Quad Exclusive NOR Gate
74LS2698-BIT BIDIRECTIONAL BINARY COUNTER
74LS273Octal D-Type Flip-Flop; Common Clock and Clear
74LS279Quad SR-Flip-Flops
74LS2809-Bit Parity checker
74LS2834-Bit Full Adder
74LS2904-Bit Decade/Binary Counter
74LS298Quad 2-Line to 1-Line Multiplexers with Latch
74LS2998-Bit Bidirectional Universal Shift Register
74LS3228-Bit Sign-Extend Shift Register
74LS3238-Bit Universal Shift Register with Latch
74LS3488-Line to 3-Line Priority Encoder with 3-State Outputs
74LS352Dual 4-Line to 1-Line Multiplexers
74LS353Dual 4-Line to 1-Line Multiplexers with 3-State Outputs
74LS365Hex Bus Line Drivers
74LS3663-State Hex Line Driver
74LS367Hex Bus Line Drivers
74LS368Hex Inverting Bus Line Drivers
74LS373Octal D-Type Latch
74LS374Octal D-Type Flip-Flop
74LS375Quad D-Type Latch
74LS377Octal D-Type Flip-Flop
74LS378Hex D-Type Flip-Flop
74LS379Quad D-Type Flip-Flop
74LS386Quad 2-Input Exclusive OR Gates
74LS390Dual Decade Counters
74LS393Dual Decade Counters
74LS3954-Bit Shift Register with 3-State Outputs
74LS398Quad 2-Input Register
74LS399Quad 2-Input Register
74LS490Dual Decade Counter
74LS5218-BIT IDENTITY COMPARATOR
74LS533Octal D-Type Transparent Latche
74LS534Octal Invering D-Type Flip-Flop
74LS5381-OF-8 DECODER WITH 3-STATE OUTPUTS
74LS5408-Bit Inverting Line Driver
74LS541OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
74LS543OCTAL REGISTERED TRANSCEIVER, NON-INVERTING, 3-STATE
74LS544OCTAL REGISTERED TRANSCEIVER, INVERTING, 3-STATE
74LS5684-BIT BIDIRECTIONAL COUNTERS (WITH 3-STATE OUTPUTS)
74LS5694-Bit Synchronous Counter
74LS5748-Bit D-Type Flip-Flop/Bus Driver
74LS5798-BIT BIDIRECTIONAL BINARY COUNTER (3-STATE)
74LS620OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS (INVERTING AND NONINVERTING)
74LS623Octal Bus Transcievers
74LS629Voltage Controlled Oscilator
74LS640Octal Bus Transciever
74LS646Octal Bus Transciever
74LS648Octal Bus Transciever/Register
74LS657OCTAL BIDIRECTIONAL TRANSCEIVER WITH 8-BIT PARITY GENERATOR CHECKER (3-STATE OUTPUTS)
74LS6694-Bit Synchronous Up/Down Counter
74LS6704-By-4 Register File; 3-State Outputs
74LS6828-Bit Magnitude/Identity Comparator
74LS6848-Bit Magnitude Comparators
74LS6888-Bit Magnitude Comparators
74LS7488-Line to 3-Line Priority Encoder
74LS7798-BIT BIDIRECTIONAL BINARY COUNTER (3-STATE)
74LS795Octal Buffer with 3-State Outputs
74LS8488-Line to 3-Line Priority Encoder with 3-State Outputs
74LS224525Ohm Octal Bidirectional Transceiver With 3-State Inputs and Outputs
74LS3893QUAD FUTUREBUS BACKPLANE TRANSCEIVER (3 STATE + OPEN COLLECTOR)