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ST24LC21 Datasheet 1kb X8 Dual Mode Serial Eeprom

Manufacturer: STMicroelectronics

Overview: ST24LC21 1Kb (x8) DUAL MODE SERIAL EEPROM for VESA Plug&Play NOT FOR NEW DESIGN 1 MILLION ERASE/WRITE CYCLES 40 YEARS DATA RETENTION 2.5V to 5.5V SINGLE SUPPLY VOLTAGE 400k Hz PATIBILITY OVER the FULL RANGE of SUPPLY VOLTAGE TWO WIRE SERIAL INTERFACE I2C BUS PATIBLE PAGE WRITE (up to 8 BYTES) BYTE, RANDOM and SEQUENTIAL READ MODES SELF TIMED PROGRAMMING CYCLE AUTOMATIC ADDRESS INCREMENTING ENHANCED ESD/LATCH UP PERFORMANCES ST24LC21 is replaced by the ST24LC21B 8 1 PSDIP8 (B) 0.25mm Frame 8 1 SO8 (M) Figure 1.

General Description

The ST24LC21 is a 1K bit electrically erasable programmable memory (EEPROM), organized by 8 bits.This device can operate in two modes: Transmit Only mode and I2C bidirectional mode.

When powered, the device is in Transmit Only mode with EEPROM data clocked out from the rising edge of the signal applied on VCLK.

The device will switch to the I2C bidirectional mode upon the falling edge of the signal applied on SCL pin.

ST24LC21 Distributor