Product Overview
The SN74HC125PWR from Texas Instruments is a quad buffer/line driver with 3-state outputs in a 14-pin TSSOP package. Each gate has an active-low output enable, supports 2V to 6V supply, and provides +/-7.8mA output drive.
Key Specifications
| Function | Quad Buffer/Line Driver with 3-State |
| Channels | 4 |
| Supply Voltage | 2V to 6V |
| Output Drive | +/-7.8mA at 5V |
| Propagation Delay | 11ns at 6V (typ) |
| Output Type | 3-State (active-low OE) |
| Quiescent Current | 80uA (max) |
| Operating Temperature | -40 to 85 C |
Features
- Four independent buffer gates with 3-state outputs
- Active-low output enable per gate
- Wide supply voltage range: 2V to 6V
- Balanced output propagation delays
- Input clamp diodes for overshoot protection
- Supports fanout up to 10 LSTTL loads
- Significant power reduction vs LSTTL logic
Applications
- Bus buffering and driving
- 3-state bus sharing and multiplexing
- Memory address buffering
- I/O port expansion
- Level translation between 3.3V and 5V domains