ROHM Semiconductor BR25G-5A Series SPI BUS EEPROMs
ROHM Semiconductor BR25G-5A Series SPI BUS EEPROMs are 128-Kbit, 256-Kbit, and 512-Kbit serial EEPROMs of the SPI BUS interface with 4 million times write cycles. These EEPROMs feature 64-byte page size, 16384 x 8-bit bit format, 1.6V to 5.5V supply voltage range, 20MHz clock frequency, and 3.5ms maximum write time. The BR25Gx SPI BUS EEPROMs include an address auto-increment function at read operation and auto-erase and auto-end function at data rewrite. Typical applications include AV equipment, OA equipment, telecommunication equipment, home electronic appliances, and amusement equipment.
Features
- SPI BUS mode (CPOL, CPHA) = (0, 0), (1, 1)
- 64-Byte/126-Byte page size
- 16384 x 8-bit/65536 x 8-bit format
- 64-Byte/126-Byte write lockable identification page (ID page)
- Address auto-increment function at read operation
- Auto erase and auto end function at data rewrite
- Write protect block setting by software
- Memory array 1/4, 1/2, and whole
- HOLD function by the HOLDB pin
- Prevention of write mistakes:
- Write prohibition at power on
- Write prohibition by the WPB pin
- Write prohibition block setting
- Prevention of write mistake at low voltage
Specifications
- 1.6V to 5.5V supply voltage range
- 20MHz maximum clock frequency
- 3.5ms maximum write time
- 4 million times write cycles
- 200 years data retention
- -40°C to 85°C ambient operating temperature range
Applications
- AV equipment
- OA equipment
- Telecommunication equipment
- Home electronic appliances
- Amusement equipment
Block Diagrams
Typical Application Circuit
Datasheets
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ROHM Semiconductor BR24G16NUX-5TR I2C BUS EEPROM
16-Kbit serial EEPROM of the I2C BUS interface with 2 ports of serial clock and Serial Data (SDA).
Inilathala: 2024-12-19
| Na-update: 2025-05-21