SN54ABT657A and SN74ABT657A are eight-channel transceivers with parity generator/checkers and 3-state outputs. They offer high performance and low power consumption and can be used in a variety of applications.
The SN54ABT657A and SN74ABT657A are state-of-the-art EPIC-IIB BiCMOS devices designed to significantly reduce power dissipation. These chips function as eight noninverting buffers with integrated parity-generator/checker circuits, allowing for data transmission between two ports (A and B) while verifying data integrity.
| Supply Voltage (VCC) | 4.5 V to 5.5 V |
|---|---|
| High-Level Input Voltage (VIH) | 2 V |
| Low-Level Output Current (IOL) SN74ABT657A | 48 mA to 64 mA |
| Operating Temperature (Military) | -55°C to 125°C |
| Operating Temperature (Commercial) | -40°C to 85°C |
The ERR output goes low if the received data does not match the selected parity sense.
In transmit mode, the PARITY output sets to a logic level that maintains the parity sense selected by the ODD/EVEN input.
The device enters a high-impedance state during power up or power down under these voltage conditions.