Datasheet Serial EEPROM Series Standard EEPROM 2 I C BUS EEPROM (2-Wire) BR24Gxxx-3A (128K 256K 1M) General Description 2 BR24Gxxx-3A is a serial EEPROM of I C BUS Interface Method Features Packages W(Typ) x D(Typ)x H(Max) All controls available by 2 ports of serial clock(SCL) and Not Recommended for serial data(SDA) New Designs Other devices than EEPROM can be connected to the same port, saving microcontroller port TSSOP-B8 DIP-T8 1.7V to 5.5V Single Power Source Operation most 9.30mm x 6.50mm x 7.10mm 3.00mm x 6.40mm x 1.20mm suitable for battery use 1.7V to 5.5V wide limit of operating voltage, possible 1MHz operation Page Write Mode useful for initial value write at factory shipment Self-timed Programming Cycle SOP8 TSSOP-B8J 5.00mm x 6.20mm x 1.71mm Low Current Consumption 3.00mm x 4.90mm x 1.10mm Prevention of Write Mistake Write (Write Protect) Function added Prevention of Write Mistake at Low Voltage More than 1 million write cycles SOP-J8 MSOP8 More than 40 years data retention 2.90mm x 4.00mm x 0.90mm 4.90mm x 6.00mm x 1.65mm Noise filter built in SCL / SDA terminal Initial delivery state FFh VSON008X2030 SSOP-B8 2.00mm x 3.00mm x 0.60mm 3.00mm x 6.40mm x 1.35mm Figure 1. Page Write Number of Pages 64Byte 256Byte BR24G128-3A Product Number BR24G1M-3A BR24G256-3A BR24G128-3A Power Source Capacity Bit Format Type Package Voltage *1 BR24G128-3A DIP-T8 BR24G128F-3A SOP8 BR24G128FJ-3A SOP-J8 BR24G128FV-3A SSOP-B8 128kbit 16k8 1.7V to 5.5V BR24G128FVT-3A TSSOP-B8 BR24G128FVJ-3A TSSOP-B8J BR24G128FVM-3A MSOP8 BR24G128NUX-3A VSON008X2030 *1 Not Recommended for New Designs. Product structure: Silicon monolithic integrated circuit This product has no designed protection against radioactive rays .w ww.rohm.com TSZ02201-0R2R0G100020-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/36 TSZ22111 14 001 24.Mar.2020 Rev.008 BR24Gxxx-3A (128K 256K 1M) BR24G256-3A Power Source Capacity Bit Format Type Package Voltage *1 BR24G256-3A DIP-T8 BR24G256F-3A SOP8 256kbit 32k8 BR24G256FJ-3A 1.7V to 5.5V SOP-J8 BR24G256FV-3A SSOP-B8 BR24G256FVT-3A TSSOP-B8 *1 Not Recommended for New Designs. BR24G1M-3A Power Source Capacity Bit Format Type Package Voltage *1 BR24G1M-3A DIP-T8 1Mbit 128k8 BR24G1MF-3A 1.7V to 5.5V SOP8 BR24G1MFJ-3A SOP-J8 *1 Not Recommended for New Designs. www..r ohm.com TSZ02201-0R2R0G100020-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/36 TSZ22111 15 001 24.Mar.2020 Rev.008