SN74HCT245PWR Octal Bus Transceiver | TTL-Compatible CMOS | TSSOP-20 SMD

Description

The SN74HCT245 is an octal bus transceiver designed for asynchronous two-way communication between data buses. It consists of eight non-inverting buffers with 3-state outputs. The device is controlled by two primary inputs: the Direction (DIR) control, which determines whether data flows from A-to-B or B-to-A, and the Output Enable (OE-bar), which disables the outputs to a high-impedance (high-Z) state.

Because it is part of the 74HCT series, it features TTL-compatible input threshold levels, allowing it to interface directly with 5V TTL logic while maintaining the high performance and low power consumption of CMOS technology. This makes it a standard component for data bus buffering and isolation in microcomputer and microprocessor-based systems.

Note: Product images are shown for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability.

Features

• Octal (8) bidirectional non-inverting buffers
• 3-state outputs for efficient bus sharing
• Direction (DIR) and Output Enable (OE-bar) control inputs
• TTL-compatible input threshold levels (HCT logic)
• High-speed CMOS (HCT) technology
• Compact TSSOP-20 surface-mount package

Benefits

• Enables seamless bidirectional communication between two data buses
• 3-state outputs prevent signal contention
• TTL-compatible inputs allow for flexible mixed-logic design
• Robust performance in high-speed, bus-oriented applications

Applications

• Asynchronous Two-Way Data Bus Communication
• Microprocessor System Bus Expansion
• Peripheral Data Interface and Buffering
• Signal Isolation in Multi-Master Systems
• General Purpose Digital Logic Level Interfacing

Package Includes

• 1 x SN74HCT245PWR Octal Bus Transceiver IC (TSSOP-20 SMD)

Specifications