15.3.4
Pinning
15.4 FDN336P
15.4.1
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. The ST24LC21 cannot switch from the I2C bidirectional mode to the Transmit Only
mode (except when the power supply is removed). The device operates with a power
supply value as low as 2.5V. Both Plastic Dual-in-Line and Plastic Small Outline
packages are available.
15.4.2
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
Содержание L32VK06U
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