产品概览
SN74LVC125APWR from TI is a quad 3-state bus buffer. 1.65-3.6V supply with 5V tolerant inputs. 4.5ns propagation. Active-low output enable per channel pair.
工作原理
Each buffer passes input to output when enabled (OE low). When OE high, output goes high-impedance (3-state). 5V tolerant inputs allow interfacing with 5V logic from 3.3V supply.
Pin Description
| 别针组 | 名称 | 功能 |
|---|---|---|
| 输入 | 1A-4A | Data inputs |
| 输出 | 1Y-4Y | 3-state outputs |
| Enable | 1OE/2OE | Active-low output enable |
应用
- Bus driving and isolation
- Memory bank selection
- 3.3V to 5V level interface
Alternative Models
| 制造商 | 部件编号 | 说明 |
|---|---|---|
| TI | SN74LVC126APWR | Active-high enable |
| Nexperia | 74LVC125APW | Equivalent |