| 制造商 | 部件名 | 数据表 | 功能描述 |
 National Semiconductor ... | DM74157 |  118Kb/ 6P | Quad 2-Line to 1-Line Data Selectors/Multiplexers |
| DM74157N |  118Kb/ 6P | Quad 2-Line to 1-Line Data Selectors/Multiplexers |
 National Semiconductor ... | DM74161A |  211Kb/ 8P | SYNCHRONOUS 4-BIT COUNTERS |
| DM74161AN |  211Kb/ 8P | SYNCHRONOUS 4-BIT COUNTERS |
| DM74161N |  176Kb/ 10P | Synchronous 4-Bit Counters |
 National Semiconductor ... | DM74163A |  211Kb/ 8P | SYNCHRONOUS 4-BIT COUNTERS |
| DM74163AN |  211Kb/ 8P | SYNCHRONOUS 4-BIT COUNTERS |
| DM74163N |  176Kb/ 10P | Synchronous 4-Bit Counters |
 National Semiconductor ... | DM74165 |  109Kb/ 6P | 8-Bit Parallel-to-Serial Converter August 1989 |
| DM74165N |  109Kb/ 6P | 8-Bit Parallel-to-Serial Converter August 1989 |
 National Semiconductor ... | DM74173N |  131Kb/ 6P | TRI-STATE Quad Registers |
 National Semiconductor ... | DM74174N |  150Kb/ 8P | Hex/Quad D Flip-Flops with Clear |