BR93H46RF-2LBH2

Memory IC Overview

The BR93H46RF-2LBH2 is a 1 kbit (64 x 16 bit) Microwire bus EEPROM manufactured by ROHM Semiconductor. It operates within a supply voltage range of 2.5 V to 5.5 V and supports a maximum clock frequency of 2 MHz. The device is housed in an SOP-8 surface-mount package and functions across a temperature range of -40°C to +125°C. Key electrical characteristics include a maximum active read current of 3 mA and a standby current of 10 µA. Data retention is specified at 100 years.

Memory IC Feature Summary

• Supports Microwire bus serial interface with address auto-increment during read operations.
• Includes write mistake prevention mechanisms such as power-on write prohibition, command code protection, and low-voltage error circuits.
• Features program cycle auto erase and auto end functionality with READY/BUSY status indication.

Memory IC Applications

• Industrial applications requiring long-term data support
• Automotive systems utilizing AEC-Q100 qualified components
• Embedded memory storage for configuration data

Memory IC Procurement Notes

Verify the NRND (Not Recommended for New Design) status before procurement. Confirm that the SOP-8 package and 2 MHz interface speed align with existing design constraints. Ensure compatibility with the 2.5 V to 5.5 V supply range and -40°C to +125°C operating temperature specifications for the target environment.

Memory IC Selection Notes

Select this component when a 1 kbit capacity and Microwire interface are required for industrial or automotive environments. Consider the SOP-8 package size and wide temperature range (-40°C to +125°C). Verify that the 2.5 V to 5.5 V supply voltage matches the system power rails and that the 2 MHz clock speed meets timing requirements.

Memory IC Part Context

This part belongs to the BR93H series of Microwire bus EEPROMs from ROHM Semiconductor. It shares pin configurations and package options with other densities in the family, facilitating design scalability. The device utilizes a double-cell structure for high reliability and data retention, targeting robust performance in demanding electronic applications.

Memory IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for direct replacements or compatible alternatives within the same product family.