BU8272GUW-E2

Overview

The BU8272GUW-E2 is an I/O expander interface integrated circuit manufactured by ROHM Semiconductor. It functions as a parallel-to-serial converter, translating parallel input data into serial output for communication with host systems. The device operates within a supply voltage range of 1.65 V to 3.6 V and supports data transfer rates up to 10 Mbps. It features a 4-bit parallel input configuration and utilizes a standard two-wire serial interface compatible with I2C protocols. The component is housed in a compact USON8 package, designed for space-constrained applications requiring efficient GPIO expansion.

Feature Summary

• Parallel-to-serial data conversion capability for system integration
• I2C-compatible serial interface for simplified host connection
• Low-voltage operation suitable for portable electronics

Applications

• Mobile phone peripheral control
• Portable electronic device interface expansion
• Consumer electronics GPIO management

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure the procurement source provides authentic ROHM Semiconductor components with traceable documentation. Cross-reference the part number with official distributor catalogs to confirm availability status and lead times prior to finalizing orders.

Selection Notes

Select this component when a design requires expanding general-purpose input/output lines via a serial interface. Consider the USON8 package size for PCB layout constraints. Verify that the host controller supports the required I2C clock speeds and that the operating voltage aligns with the system's power rails. Evaluate the maximum data rate requirements against the 10 Mbps specification.

Part Context

This part belongs to the BU82xx series of I/O expanders from ROHM Semiconductor. These devices are engineered for low-power applications in mobile and consumer sectors. The series typically offers various pin configurations and interface options to accommodate different system architectures while maintaining compatibility with standard communication protocols.

Replacement Considerations

Check for direct substitutes such as the BU8272GWZ if package variations are acceptable. Consult ROHM's official replacement guides for end-of-life notifications or recommended upgrades within the same product family.