ROHM BR25G640FJ-3GE2

640-3 is a 64Kbit Serial EEPROM of SPI BUS Inte

• High Speed Clock Action up to 20MHz (Max)
• Wait Function by HOLDB Terminal
• Part or Whole of Memory Arrays Settable as Read only Memory Area by Program
• 1.6V to 5.5V Single Power Source Operation Most Suitable for Battery Use.
• Up to 32 Bytes in Page Write Mode.
• For SPI Bus Interface (CPOL, CPHA)=(0, 0), (1, 1)
• Self-timed Programming Cycle
• Low Current Consumption
  • At Write Action (5V) : 0.5mA (Typ)
  • At Read Action (5V) : 2.0mA (Typ)
  • At Standby Action (5V) : 0.1μA (Typ)
• Address Auto Increment Function at Read Action Prevention of Write Mistake
  • Write Prohibition at Power On
  • Write Prohibition by Command Code (WRDI)
  • Write Prohibition by WPB Pin
  • Write Prohibition Block Setting by Status Registers (BP1, BP0)
  • Prevention of Write Mistake at Low Voltage
• More than 100 years Data Retention.
• More than 1 Million Write Cycles.
• Bit Format 8Kx8 Initial Delivery Data Memory Array: FFh Status Register: WPEN, BP1, BP0 : 0