The SN74LVCHR32245AKR is a high-performance, 32-bit bus transceiver from Texas Instruments, designed to facilitate bidirectional communication between two buses of different voltage levels. This integrated circuit is part of the LVCHR family, which stands for Low-Voltage CMOS to Higher-Voltage CMOS Rail-to-Rail. It is particularly suitable for applications that require level shifting capabilities, such as interfacing between a 3.3V microcontroller and a 5V system.

Key Features

• Level Shifting: The device is capable of translating signals between 3.3V and 5V, enabling seamless communication between devices operating at different logic levels.
• High-Speed Data Transmission: With its low propagation delay and high drive strength, the SN74LVCHR32245AKR ensures fast and reliable data transmission, making it ideal for high-speed data buses.
• Bus Hold: The bus hold feature prevents floating inputs, which can lead to erratic system behavior, by maintaining the last known state of the input when it becomes disconnected.
• Flow-Through Architecture: Designed with a flow-through pinout, this transceiver simplifies PCB layout by easing the routing of traces between the microprocessor and memory or peripheral interfaces.
• Power-Off Protection: Inputs and outputs are designed to tolerate up to 5.5V, providing protection against potential damage when the device is powered off.

Applications

The versatility of the SN74LVCHR32245AKR makes it an excellent choice for a wide array of applications, including but not limited to:

• Level translation in multi-voltage systems
• Microprocessor or microcontroller interface
• Data communication and telecommunication systems
• Peripheral interface for memory and I/O expansion

Technical Specifications

The SN74LVCHR32245AKR is available in a 96-ball BGA package, offering a compact footprint for space-constrained applications. It operates over a broad supply voltage range of 2.7V to 3.6V for the A-side and 4.5V to 5.5V for the B-side. The device also supports a wide operating temperature range, ensuring reliable performance across diverse environmental conditions.

Ordering Information

To order or request samples of the SN74LVCHR32245AKR, visit the Texas Instruments website or contact your local Texas Instruments sales office. Ensure you have the correct part number, as Texas Instruments provides comprehensive support and documentation for their products.