SN54LS245.pdf

These octal bus transceivers are designed for

asynchronous two-way communication between data

buses. The control-function implementation minimizes

external timing requirements.

The SNx4LS245 devices allow data transmission

from the A bus to the B bus or from the B bus to the

A bus, depending on the logic level at the directioncontrol (DIR) input. The output-enable (OE) input can

disable the device so that the buses are effectively

isolated.

1 Features

1• 3-State Outputs Drive Bus Lines Directly

• PNP Inputs Reduce DC Loading on Bus Lines

• Hysteresis at Bus Inputs Improves Noise Margins

• Typical Propagation Delay Times Port to Port,

8 ns

2 Applications

• Building Automation

• Electronic Point of Sale

• Factory Automation and Control

• Test and Measurement