BR25H320NUX-5ACTR

Memory IC Overview

The BR25H320NUX-5ACTR is a 32 Kbit serial EEPROM from the BR25H320xxx-5AC series, manufactured by ROHM Semiconductor. It features an SPI BUS interface with a maximum clock frequency of 20 MHz and operates within a supply voltage range of 1.7 V to 5.5 V. The device supports ambient operating temperatures from -40 °C to +125 °C and is AEC-Q100 Grade 1 qualified for automotive applications. It utilizes a VSON08AX2030 package measuring 2.0 mm x 3.0 mm x 0.6 mm. Key electrical characteristics include a standby current of 10 μA maximum, write cycles up to 4 million at 25 °C, and data retention of 100 years at 25 °C.

Memory IC Feature Summary

• AEC-Q100 Grade 1 qualified for automotive reliability standards
• Functional safety supportive design enabling safety analysis
• Integrated identification page with 32-byte write lock capability
• Comprehensive write protection including software block settings and low-voltage prevention

Memory IC Applications

• Airbag systems
• Anti-lock Braking Systems (ABS)
• Electronic Control Units (ECU)

Memory IC Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging configuration as per ROHM documentation. Confirm the component meets RoHS directives and functional safety supportive requirements for your target application. Ensure the ordering part number matches the exact package type and temperature grade specified in the official datasheet to avoid compatibility issues.

Memory IC Selection Notes

Select this component for designs requiring high-temperature operation up to 125 °C and robust automotive qualification. Consider the VSON08AX2030 package for space-constrained PCB layouts. Evaluate the SPI mode compatibility (CPOL/CPHA) with the host microcontroller. Verify that the 32-byte page size aligns with the system's data writing efficiency requirements.

Memory IC Part Context

This part belongs to the BR25H320xxx-5AC series, which includes variants like BR25H320FJ-5ACE2 and BR25H320F-5ACE2. These devices share similar automotive-grade specifications but differ in package types such as SOP-J8 or TSSOP-B8. The NUX suffix specifically denotes the VSON08AX2030 thin profile package, distinguishing it from standard plastic packages in the same family.

Memory IC Replacement Considerations

Direct substitutes within the same series include BR25H320FJ-5ACE2 and BR25H320F-5ACE2, though these utilize different packages (SOP-J8/TSSOP-B8). Cross-package replacements require PCB footprint modification. Verify that any alternative maintains the 125 °C operating temperature and AEC-Q100 qualification.