TI SN54HC245J

These octal bus transceivers are designed for asynchronous bidirectional communication between data buses. The control function implementation minimizes external timing requirements. Depending on the logic level on the direction control (DIR) input, the SNx4HC245 devices transmit data from the A bus to the B bus, or from the B bus to the A bus. The output enable (OE) input can be used to disable the device, effectively isolating the buses. To ensure a high-impedance state during power-up or power-down, OE should be connected to VCC through a pull-up resistor; the minimum value of this resistor depends on the sink current capability of the driver.

• Wide operating voltage range: 2V to 6V
• High-current 3-state outputs, directly drives buses or up to 15 LSTTL loads
• Low power consumption, max ICC = 80μA
• tpd typical = 12 ns
• ±6mA output drive (at 5V)
• Low input current, max 1μA
• Wide operating VCC range from 2V to 6V with slower edge rates to minimize output ringing

• Servers
• PCs and laptops
• Network switches
• Wearable health and fitness devices
• Telecom infrastructure
• Electronic point-of-sale terminals
• Multi-bus interface type applications