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)