74LSxx TTL Logic
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| 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 |
