Texas Instruments SN74HCT645 Octal Bus Transceivers With 3-State Outputs SN74HCT645PWTE4

The SN74HCT645PWTE4 is an octal bus transceiver designed for asynchronous two-way communication between data buses. It operates within a voltage range of 4.5 V to 5.5 V and features high-current 3-state outputs capable of driving up to 15 LSTTL loads. The device has a low power consumption of 80 µA maximum ICC and a typical propagation delay (tpd) of 14 ns at 5.5 V. This transceiver supports true logic and is TTL-compatible, with a low input current of 1 µA maximum. The output drive capability is ±6 mA at 5 V. The device includes a direction-control (DIR) input to determine data flow between the A bus and B bus, and an output-enable (OE) input for bus isolation. The operating temperature range is from -40°C to 85°C, making it suitable for various applications.