The MC74HC245A is a 3-state non-inverting transceiver used for 2-way asynchronous data bus communication.
The MC74HC245A octal 3‑state non‑inverting bus transceiver provides bidirectional asynchronous communication between data buses. It features CMOS inputs compatible with standard CMOS and LSTTL outputs, an active‑low Output Enable for high‑impedance state, and a Direction control pin to select data flow direction. The device is pin‑compatible with the LS245 and supports up to 15 LSTTL loads.
Electrical specifications include an operating voltage range of 2.0 V to 6.0 V, low input current, and a maximum supply current per pin of 0.75 mA. The part is offered in multiple packages (PDIP‑20, SOIC‑20, TSSOP‑20, etc.) with detailed dimensions and ordering information provided in the datasheet.
| Output Drive Capability | 15 LSTTL Loads |
|---|---|
| Operating Voltage Range | 2.0 V to 6.0 V |
| Maximum Supply Current per Supply Pin | 0.75 mA |
| Low Input Current | 1 µA (typical) |
Yes, the MC74HC245A is identical in pinout to the LS245.
The device operates from 2.0 V to 6.0 V.
It can drive up to 15 LSTTL loads.