74126 Features
- Quad Bus Buffers with 3-State Outputs
- Separate Control for each Channel
- High-Impedance Output State
- Standard TTL Switching Voltages
74126 Specifications
- High Speed Operation: tpd = 8 ns typ (CL = 50 pF)
- High Output Current: Fanout of 15 LSTTL Loads
- Wide Operating Voltage: VCC = 2 to 6 V
- Low Input Current: 1 µA max
- Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Note:
Like every other chip in the 74 series, this IC must be connected to power before you can use it. Most 74126 ICs support a VCC voltage of 5V. One difference between the HC and LS version of the chip is that the 74HC126 supports 2V to 6V, while the 74LS126 supports only 5V.
74126 Pinout Diagram
74126 Pin Description
| Pin No | Pin Name | Description |
| 1 | 1G, 1G*’ | LOW/High pin of Buffer 1 |
| 2 | 1A | Input Of Buffer 1 |
| 3 | 1Y | Output Of Buffer 1 |
| 4 | 2G,2G*’ | LOW/High pin of Buffer 2 |
| 5 | 2A | Input Of Buffer 2 |
| 6 | 2Y | Output Of Buffer 2 |
| 7 | GND | Ground |
| 8 | 3Y | Output Of Buffer 3 |
| 9 | 3A | Input Of Buffer 3 |
| 10 | 3G,3G*’ | LOW/High pin of Buffer 3 |
| 11 | 4Y | Output Of Buffer 4 |
| 12 | 4A | Input Of Buffer 4 |
| 13 | 4G,4G*’ | LOW/High pin of Buffer 4 |
| 14 | VCC | Positive Supply |
Applications
- A digital buffer (or a voltage buffer) is an electronic circuit element used to isolate input from the output.
74125 Datasheet
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