This datasheet details the onsemi MC74ACT640, an octal bus transceiver for asynchronous two-way communication between data buses with TTL compatible inputs.
The MC74ACT640 is an octal bus transceiver designed for asynchronous two-way communication between data buses. It allows data transmission from bus A to bus B when the T/R input is HIGH, or from bus B to bus A when T/R is LOW. The device includes features such as a bidirectional data path, TTL compatible inputs, and Pb-Free compliance.
| Bidirectional Data Path | Yes |
|---|---|
| Output Sink/Source Current | 24 mA / -24 mA |
| DC Supply Voltage (VCC) | -0.5 to +7.0 V |
| Operating Temperature Range | -40°C to +85°C |
| Package Type | SOIC-20 (Pb-Free) |
Data transmits from bus A to bus B when T/R is HIGH, or from bus B to bus A when T/R is LOW.
Yes, the enable input can be used to disable the device so the buses are effectively isolated.