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DESCRIPTION

These I2C-compatible electrically erasable programmable memory (EEPROM) devices are organized as 32Kx8 bits, and operate down to 2.5 V (for the M24256-AW), and down to 1.8 V (for the M24256-AR).

The M24256-A is available in Plastic Dual-in-Line, Plastic Small Outline and Thin Shrink Small Outline packages. The M24256-A is also available in a chip-scale (SBGA) package.

■ Compatible with I2C Extended Addressing

■ Two Wire I2C Serial Interface

Supports 400 kHz Protocol

■ Single Supply Voltage:

– 4.5V to 5.5V for M24256-A

– 2.5V to 5.5V for M24256-AW

– 1.8V to 3.6V for M24256-AR

■ 2 Chip Enable Inputs: up to four memories can

be connected to the same I2C bus

■ Hardware Write Control

■ BYTE and PAGE WRITE (up to 64 Bytes)

■ RANDOM and SEQUENTIAL READ Modes

■ Self-Timed Programming Cycle

■ Automatic Address Incrementing

■ Enhanced ESD/Latch-Up Behavior

■ More than 100,000 Erase/Write Cycles

■ More than 40 Year Data Retention