The SCBS239F is a 16-bit noninverting 3-state transceiver designed for synchronous two-way communication between data buses. It features no external resistors required, low output ground bounce, distributed VCC and GND pins, and support for partial-power-down mode operation.
The SN54ABT162245 and SN74ABT162245 devices are 16-bit noninverting 3-state transceivers designed for synchronous two-way communication between data buses. They can be configured as two 8-bit transceivers or one 16-bit transceiver, allowing data transmission from the A bus to the B bus or vice versa based on the DIR input logic level.
These devices feature a flow-through architecture that optimizes PCB layout and includes distributed VCC and GND pins to minimize high-speed switching noise. The A-port outputs are designed to source or sink up to 12 mA and include equivalent 25-Ω series resistors to reduce overshoot and undershoot. Additionally, the devices support partial-power-down mode using logic '0' to disable outputs and prevent damaging current backflow.
| High-Level Output Current (A port) | 30 mA |
|---|---|
| Operating Temperature Range (Commercial) | -40°C to +85°C |
| Operating Temperature Range (Military) | -55°C to +125°C |
Data transmission depends on the logic level at the DIR input, allowing transfer from A to B bus or B to A bus.
The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.