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Features

? Compatible with following I2C bus modes:

– 1 MHz (Fast-mode Plus)

– 400 kHz (Fast-mode)

– 100 kHz (Standard-mode)

? Memory array:

– 256 Kbit (32 Kbytes) of EEPROM

– Page size: 64 bytes

– Additional identification page

? Configurable device address register

? Software write protection register

? Single supply voltage: 1.6 to 3.6 V

? Operating temperature range: -40 °C up to +85 °C

? Write cycle time:

– Byte write within 5 ms

– Page write within 5 ms

? Random and sequential read modes

? Enhanced ESD / latch-up protection

? More than 4 million write cycles

? More than 200-year data retention

? Package

– WLCSP 4-ball (ECOPACK2)

Description

The M24256X-F is a 256-Kbit I2C-compatible EEPROM (electrically erasable programmable memory) organized

as 32 K × 8 bits.

The M24256X-F can operate with a supply voltage from 1.65 V to 3.6 V, with a clock frequency up to 1 MHz, over

an ambient temperature range from -40 °C to +85 °C. It can also operate down to 1.6 V, under some restricting

conditions.

The M24256X-F offers three additional features, namely a 64-byte page, named identification page, which can

be used to store sensitive application parameters that can be (later) permanently locked in read-only mode, a

first 8-bit register, named configurable device address (CDA) register, authorizing the user, through software,

to configure up to eight possibilities of chip enable address, and a second 8-bit register, named software write

protection (SWP) register, authorizing the user, through software, to write protect a part or the full memory array.

– Unsawn wafer (each die is tested)