STMicroelectronics, 256 kB EEPROM, 450 ns 8-Pin UFDFPN Serial-I2C

The M24256-BW can operate with a supply voltage from 2.5 V to 5.5 V, the M24256-BR and M24256-DR can operate with a supply voltage from 1.8 V to 5.5 V, and the M24256-BF and M24256-DF can operate with a supply voltage from 1.7 V to 5.5 V. All these devices operate with a clock frequency of 1 MHz (or less), over an ambient temperature range of –40 °C / +85 °C.

• Compatible with all I2C bus modes:
• 1 MHz
• 400 kHz
• 100 kHz
• Memory array:
• 256 Kbit (32 Kbyte) of EEPROM
• Page size: 64 byte
• Additional Write lockable page
• Single supply voltage and high speed:
• 1 MHz clock from 1.7 V to 5.5 V
• Write:
• Byte Write within 5 ms
• Page Write within 5 ms
• Operating temperature range:
• from -40 °C up to +85 °C
• Random and sequential Read modes
• Write protect of the whole memory array
• Enhanced ESD/Latch-Up protection
• More than 4 million Write cycles
• More than 200-years data retention
• Packages
• SO8
• TSSOP8
• UFDFPN8
• WLCSP
• Unsawn wafer (each die is tested)