Product Descriptions

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 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. The M24256-D offers an additional page, named the identification page (64 byte). The identification page can be used to store sensitive application parameters which can be (later) permanently locked in read-only mode.

Product Features

• Compatible with following 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 (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-years data retention

Product Specification

Product Photos

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