ZHCSRM0G December 1982 – April 2021 SN54HC20 , SN74HC20
PRODUCTION DATA
請參考 PDF 數據表獲取器件具體的封裝圖。
| PIN | I/O | DESCRIPTION | ||
|---|---|---|---|---|
| NAME | D, N, NS, PW, J, or W | FK | ||
| 1A | 1 | 2 | Input | Channel 1, Input A |
| 1B | 2 | 3 | Input | Channel 1, Input B |
| NC | 3, 11 | 1, 4, 5, 7, 11, 15, 16, 17 | — | Not internally connected |
| 1C | 4 | 6 | Input | Channel 1, Input C |
| 1D | 5 | 8 | Input | Channel 1, Input D |
| 1Y | 6 | 9 | Output | Channel 1, Output Y |
| GND | 7 | 10 | — | Ground |
| 2Y | 8 | 12 | Output | Channel 2, Output Y |
| 2A | 9 | 13 | Input | Channel 2, Input A |
| 2B | 10 | 14 | Input | Channel 2, Input B |
| 2C | 12 | 18 | Input | Channel 2, Input C |
| 2D | 13 | 19 | Input | Channel 2, Input D |
| VCC | 14 | 20 | — | Positive Supply |