SCDS019M May 1995 – December 2015 SN74CBT3251
PRODUCTION DATA.
請參考 PDF 數據表獲取器件具體的封裝圖。
| PIN | I/O | DESCRIPTION | |
|---|---|---|---|
| NO. | NAME | ||
| 1 | B4 | I/O | Port B4 |
| 2 | B3 | I/O | Port B3 |
| 3 | B2 | I/O | Port B2 |
| 4 | B1 | I/O | Port B1 |
| 5 | A | I/O | Common OUT/IN |
| 6 | NC | — | No Connect |
| 7 | OE | I | Enable Ports (Active Low). See Table 1. |
| 8 | GND | — | Ground |
| 9 | S2 | I | Select Pin 2. See Table 1. |
| 10 | S1 | I | Select Pin 1. See Table 1. |
| 11 | S0 | I | Select Pin 0. See Table 1. |
| 12 | B8 | I/O | Port B8 |
| 13 | B7 | I/O | Port B7 |
| 14 | B6 | I/O | Port B6 |
| 15 | B5 | I/O | Port B5 |
| 16 | VCC | — | Power Pin |