The M24256 is a 256-Kbit I2C-compatible EEPROM (Electrically Erasable PROgrammable
Memory) organized as 32 K × 8 bits.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 from1.7 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.

FEATUREs
• Compatible with all I2C bus modes:
–1 MHz
– 400 kHz
– 100 kHz
• Memory array:
– 256 Kbit (32 Kbytes) of EEPROM
– Page size: 64 bytes
– Additional Write lockable page(M24256-D order codes)
• 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-year data retention Packages
• SO8 ECOPACK2®
• TSSOP8 ECOPACK2®
• UFDFPN8 ECOPACK2®
• WLCSP ECOPACK2®