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10.10. 24LC21

10.10.1. General Description

The 24LC21 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.

10.10.2. Features

x 1 MILLION ERASE/WRITE CYCLES

x 40 YEARS DATA RETENTION

x 2.5V to 5.5V SINGLE SUPPLY VOLTAGE

x 400k Hz COMPATIBILITY OVER the FULL RANGE of SUPPLY VOLTAGE

x TWO WIRE SERIAL INTERFACE I2C BUS COMPATIBLE

x PAGE WRITE (up to 8 BYTES)

x BYTE, RANDOM and SEQUENTIAL READ MODES

x SELF TIMED PROGRAMMING CYCLE

x AUTOMATIC ADDRESS INCREMENTING

x ENHANCED ESD/LATCH UP PERFORMANCES

10.10.3 Absolute Maximum Ratings

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 88 89

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VESTEL 17MB15 User Manual Page 34