74LSxx TTL Logic

74LS00 Quad 2-input positive-NAND gates 74LS02 Quad 2-input positive-NOR gates 74LS03 Quad 2-input positive-NAND gates with open collector outputs 74LS04 Hex inverters 74LS05 Hex inverters with open collector outputs 74LS07 Hex Buffers / Drivers with Open-Collector High-Vltage Outputs 74LS08 Quadruple 2-Input Positive-AND Gates 74LS10 Triple 3-input positive-NAND gates 74LS11 Triple 3-input positive-AND gates 74LS14 Hex schmitt-trigger inverters 74LS20 Dual 4-input positive-NAND gates 74LS32 Quad 2-input positive-OR gates 74LS74 Dual D-type pos.-edge-triggered flip-flops with preset and clear 74LS86 Quad 2-input exclusive-OR gates 74LS93 4-Bit Binary Counters 74LS123 Dual retriggerable monostable multivibrators 74LS125 Quadruple Bus Buffers With 3-State Outputs 74LS132 Quad 2-input positive-NAND Schmitt triggers 74LS138 3-line to 8-line decoder / demultiplexer 74LS139 Dual 2-line to 4-line decoders / demultiplexers 74LS151 8-Line To 1-Line Data Selectors/Multiplexers 74LS157 Quadruple 2-Line To 1-Line Data Selectors/Multiplexers 74LS163 Synchronous 4-Bit Binary Counters 74LS164 Serial-in shift registers 74LS221 Dual monostable multivibrators with Schmitt-trigger inputs 74LS240 Octal buffers and line drivers 74LS245 Octal bus transceivers 74LS273 Octal D-Type Flip-Flops With Clear 74LS373 Octal D-type Transparent Latches with 3-state Outputs 74LS393 Dual 4-Bit Binary Counters