BR93H66RFVM-WCTR

Product Overview

The BR93H66RFVM-WCTR from Rohm Semiconductor is a non-volatile EEPROM memory IC providing 4Kbit of storage organized as 256 x 16. The 256 x 16 organization provides 256 locations of 16 bits each. It uses a Microwire serial interface with a 1.25 MHz clock frequency and is supplied in an 8-MSOP surface-mount package. The device operates from a 2.7V to 5.5V supply over a -40°C to 125°C ambient temperature range and carries AEC-Q100 automotive qualification.

Key Features

• 4Kbit non-volatile EEPROM memory with 256 x 16 organization
• Microwire serial interface supporting a 1.25 MHz clock frequency
• 5ms word or page write cycle time
• 2.7V to 5.5V supply voltage range
• -40°C to 125°C operating temperature range
• AEC-Q100 automotive qualification
• 8-MSOP surface-mount package

Applications

• Embedded systems storing small amounts of non-volatile configuration or calibration data
• Automotive electronic modules requiring AEC-Q100 qualified serial EEPROM
• Test and measurement equipment using a Microwire serial memory interface
• Embedded systems operating over a wide ambient temperature range

Design & Procurement Notes

For system design, verify that the host controller supports Microwire timing and the 1.25 MHz clock frequency, and allocate board space for the 8-MSOP surface-mount package. The 2.7V to 5.5V supply range and -40°C to 125°C ambient range should be checked against the power rail and thermal environment. AEC-Q100 qualification supports automotive use, while the 4Kbit capacity and 5ms write cycle time are relevant for small non-volatile data updates. The 5ms write cycle time should be included in system timing budgets when word or page updates occur.