The MC74AC244/74ACT244 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus oriented transmitter/receiver which provides improved PC board density.
This document is a datasheet for the MC74AC244 and MC74ACT244, which are octal buffer and line driver integrated circuits designed with 3-state outputs. These devices are intended for use as memory address drivers, clock drivers, and bus-oriented transmitters or receivers to improve PC board density.
The datasheet provides comprehensive technical specifications including maximum ratings, recommended operating conditions, and DC and AC characteristics for both the AC and ACT series. It details electrical parameters such as propagation delay, input/output voltage levels, and current capabilities under various supply voltages (3.3V and 5.5V). Additionally, it includes ordering information for different package types (PDIP, SOIC, TSSOP, EIAJ) and marking diagrams.
| Product Type | Octal Buffer/Line Driver with 3-State Outputs |
|---|---|
| Output Current (Source/Sink) | 24 mA |
| Operating Temperature Range | -40 to +85 °C |
| Storage Temperature | -65 to +150 °C |
| Propagation Delay (Max @ 3.3V) | 6.5 ns |
| Propagation Delay (Max @ 5.5V) | 9.0 ns |
The device is designed to be employed as a memory address driver, clock driver, and bus oriented transmitter/receiver.
The outputs can source or sink 24 mA.
Yes, the ACT244 variant has TTL compatible inputs.