74F125 and 74F126 are two quad buffers that support 3-state operation mode. They have high impedance NPN base inputs for reduced loading, typical propagation delay of 5.0ns, and typical supply current of 23mA (74F125) and 26mA (74F126). They can be used in the commercial range, with VCC of 5V ±10%, and Tamb of 0°C to +70°C. Their packaging is 14-pin plastic DIP (N74F125N and N74F126N), 14-pin plastic SO (N74F125D and N74F126D), and SOT108-1.
This document is a product specification for the Philips 74F125 and 74F126 quad buffers (3-State), published by Philips Semiconductors in March 1989. It details the electrical characteristics, pin configurations, logic symbols, function tables, and absolute maximum ratings for these integrated circuits.
| Supply Current (Total) 74F125 | 23mA |
|---|---|
| Supply Current (Total) 74F126 | 26mA |
| Operating Free-Air Temperature Range | 0 to +70 °C |
| Storage Temperature Range | -65 to +150 °C |
| High-Level Input Voltage (Min) | 2.0 V |
| Low-Level Input Voltage (Max) | 0.8 V |
| High-Level Output Current (Max) | -15 mA |
| Low-Level Output Current (Max) | 64 mA |
| Package Type 74F125 | 14-pin plastic DIP |
| Package Type 74F126 | 14-pin plastic SO |
The operating free-air temperature range is 0 to +70 °C.
The maximum low-level output current is 64 mA.
The 74F125 has active Low output enable inputs, while the 74F126 has active High output enable inputs.