
| 部件型号 | 厂商 | 描述 |
|---|---|---|
M74HCT157B1R |
STMicroelectronics | Multiplexer 1-Element CMOS 8-IN 16-Pin PDIP Tube |
M74HCT138B1R |
STMicroelectronics | Decoder/Demultiplexer Single 3-to-8 16-Pin PDIP Tube |