The CD74AC245 and CD74ACT245 are octal-bus transceivers that utilize the Harris Advanced CMOS Logic technology. They are non-inverting three-state bidirectional transceiver- buffers intended for two-way transmission from “A” bus to “B” bus or “B” bus to “A”. The logic level present on the direction input (DIR) determines the data direction. When the output enable input (OE) is HIGH, the outputs are in the high- impedance state.
The document describes the CD74AC245 and CD74ACT245 as non-inverting three-state bidirectional transceiver buffers utilizing Harris Advanced CMOS Logic technology. These devices are designed for two-way transmission between buses, with direction determined by a DIR input and high-impedance states controlled by an OE input.
| Supply Voltage Range (AC Types) | 1.5V to 5.5V |
|---|---|
| Supply Voltage Range (ACT Types) | 4.5V to 5.5V |
| Operating Temperature Range | -55°C to 125°C |
| Output Drive Current | +24mA |
| Fanout Capability | 15 FAST™ ICs |
When the output enable input (OE) is HIGH, the outputs are in the high-impedance state.
The logic level on the direction input determines if data flows from bus A to B or vice versa.