SN74ALVCH245PWR - Texas Instruments

The SN74ALVCH245PWR from Texas Instruments is a high-performance, 8-bit bus transceiver designed with two 8-bit input-output (I/O) ports (A and B), which allows bidirectional data flow. This integrated circuit is part of the advanced low-voltage CMOS (ALVC) family, which provides robust high-speed signaling and low power consumption while maintaining compatibility with existing 5V systems.

Key Features

• Technology: Advanced Low-Voltage CMOS (ALVC)
• Voltage Range: Operates from 2.3V to 3.6V
• High-Speed Data Transfer: Capable of transferring data at rates up to 380 Mbps
• Drive Capacity: ±24-mA Output Drive at 3.3 V
• Package: Available in TSSOP (Thin Shrink Small Outline Package) form
• Power-Off Protection: Inputs and Outputs Tolerate up to 5.5V
• Bus Hold on Data Inputs: Eliminates the need for external pullup/pulldown resistors
• Low Power Consumption: ICC is reduced by 50%

Applications

The SN74ALVCH245PWR is suitable for a variety of applications where high-speed, bidirectional communication between data buses is required. This includes:

• Telecommunication systems
• Networking equipment
• Computers and peripherals
• Data storage devices
• High-speed data acquisition systems

Product Description

The device features an active-low output enable (OE) input, which, when high, disables the device and isolates the buses effectively. Additionally, the SN74ALVCH245PWR supports live insertion and withdrawal (hot plugging) and provides high-impedance state during power up and power down, which prevents data corruption during live insertion of boards in backplanes.

Designed for asynchronous communication between data buses, the direction of data transmission is determined by the DIR input. The SN74ALVCH245PWR can be used as a two 8-bit transceivers or one 16-bit transceiver, which provides flexibility in application design. With its low operational voltage and power-off protection, the SN74ALVCH245PWR ensures reliability and robustness in complex electronic systems.