This document describes the features and characteristics of the 74VHCT244A model. The product is a high-speed CMOS octal bus buffer with low power dissipation and compatibility with TTL outputs.
The 74VHCT244A is an advanced high-speed CMOS octal bus buffer with 3-state outputs, fabricated with sub-micron silicon gate and double-layer metal wiring CMOS technology. The device is designed to interface 5V to 3V logic levels and features power-down protection on all inputs and outputs, accepting 0 to 7V on inputs regardless of supply voltage.
| Operating Voltage Range | 4.5V to 5.5V |
|---|---|
| Propagation Delay (Typical) | 5.4 ns |
| Quiescent Supply Current (Max) | 4 µA |
| High Level Input Voltage (Min) | 2V |
| Operating Temperature Range | -55 to 125 °C |
The typical propagation delay is 5.4 ns at a supply voltage of 5V.
Yes, it is compatible with TTL outputs with a minimum high-level input voltage of 2V and a maximum low-level input voltage of 0.8V.
Yes, power-down protection is provided on all inputs and outputs.