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EEPROM, 4 Kbit, 256 x 16bit, Serial 3-Wire, 1.25 MHz, MSOP, 8 Pins

BR93H66RFVM-2CTR - EEPROM, 4 Kbit, 256 x 16bit, Serial 3-Wire, 1.25 MHz, MSOP, 8 Pins

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Manufacturer Part No:
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Product Range
4Kbit Microwire Serial EEPROM
Technical Datasheet:
BR93H66RFVM-2CTR   Datasheet
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Product Overview

The BR93H66RFVM-2CTR is a Microwire bus serial EEPROM in 8 pin MSOP package. This 3-wire EEPROM has 4Kbit (256 x 16bit) memory size. The device can withstand electrostatic voltage up to 6KV (HBM method). It has same package line-up and same pin configuration. The BR93H66RFVM-2CTR provides high reliability using ROHM original double cell structure. Communications of Microwire bus are carried out by SK (serial clock), DI (serial data input), DO (serial data output) and CS (chip select) for device selection. It also has prevention of write mistake feature (write prohibition at power on, write prohibition by command code, write mistake prevention circuit at low voltage). The device has low supply current of 0.8mA (write operation (5V)), 0.5mA (read operation (5V)) and 0.1µA (standby operation (5V)).
  • Automotive grade AEC-Q100 qualified
  • Single supply voltage operation range from 2.5V to 5.5V
  • Address auto increment function at READ operation
  • Serial clock frequency of 2MHz
  • Self timed programming cycle
  • Program condition display by READY/active-low BUSY
  • More than 50 years data retention (Ta <= 125°C) and more than 300,000 write cycles (Ta <= 125°C)
  • Data set to FFFFh on all addresses at shipment
  • Wide temperature range from -40°C to +125°C


Automotive, Embedded Design & Development


The residue of flux may negatively affect product performance and reliability when highly active halogenous (chlorine, bromine etc) flux is used.

Product Information

256 x 16bit
Serial 3-Wire
4Kbit Microwire Serial EEPROM
MSL 1 - Unlimited
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