TABLE OF CONTENTS This section presents the available TTL 54/74 series of ICs for ready reference for logic designers. The IC numbers given here are with the reference of their functions. However, the actual IC numbers as specified by the manufacturers also indicates the exact section of the logic family they belong, though their logic functions are the same. As an example, 74LS00 indicates quad 2-input NAND gates of the low-power Schottky family, whereas 74H00 indicates quad 2-input NAND gates of high-speed TTL. Both 54 and 74 series ICs have the same functions, but the 54 series is used for military application, for the operating temperature is 55 C to + 125 C, whereas 74 series ICs are used in industrial and commercial application with a temperature range of 0 C to +85 C. The pin configuration of both series is similar.
| IC | Number Function |
|---|---|
| 7400 | Quad 2-input NAND gates |
| 7401 | Quad 2-input NAND gates (open collector) |
| 7402 | Quad 2-input NOR gates |
| 7403 | Quad 2-input NAND gates (open collector) |
| 7404 | Hex Inverters |
| 7405 | Hex Inverters (open collector) |
| 7406 | Hex Inverter Buffers/Drivers (open collector) |
| 7407 | Hex Buffers/Drivers (open collector) |
| 7408 | Quad 2-input AND gates |
| 7409 | Quad 2-input AND gates (open collector) |
| 7410 | Triple 3-input NAND gates |
| 7411 | Triple 3-input AND gates |
| 7412 | Triple 3-input NAND gates (open collector) |
| 7413 | Dual 4-input NAND Schmitt Triggers |
| 7414 | Hex Schmitt... |
