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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.

Figure 1. Logic diagram

M24256X-F

VCC

VSS

SDA

SCL

Table 1. Signal names

Signal name

Function

Direction

SDA

Serial data

I/O

SCL

Serial clock

Input

VCC

Supply voltage

-

VSS

Ground

-

M24256X-F

Description

DS12380 - Rev 2

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