SN54HCT245 - Octal Bus Transceivers With 3-State Outputs

The SNx4HCT245 octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The SNx4HCT245 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.

• Operating Voltage Range of 4.5 V to 5.5 V
• High-Current 3-State Outputs Drive Bus Lines Directly or up To 15-LSTTL Loads
• Low Power Consumption, 80-µA Maximum I_CC
• Typical t_pd = 14 ns
• ±6-mA Output Drive at 5 V
• Low Input Current of 1 µA Maximum
• Inputs Are TTL-Voltage Compatible