This document describes the features of the 74HCT540 model, including high-speed transmission, low power dissipation, and compatibility with TTL outputs.
The M74HCT540 is an advanced high-speed CMOS octal bus buffer with 3-state outputs designed with silicon gate CMOS technology. It functions as an inverting buffer where the 3-state control gate operates as a two-input AND gate; if either G1 or G2 is high, all eight outputs enter the high impedance state. The device is pin and function compatible with the 74 series 540 and is designed to interface HSCMOS systems with TTL and NMOS components.
| Propagation Delay (Typ) | 12ns |
|---|---|
| Low Power Dissipation (Max) | 4uA |
| Operating Temperature Range | -55 to 125 °C |
| Supply Voltage Range | 4.5 to 5.5 V |
| Output Current (Max) | 35 mA |
Yes, it is pin and function compatible with the 74 series 540 and designed to interface with TTL components.
It operates as a two-input AND gate such that if either G1 and G2 are high, all eight outputs are in the high impedance state.
The typical propagation delay is 12ns at a supply voltage of 4.5V.