24AA256-EMC MICROCHIP [Microchip Technology], 24AA256-EMC Datasheet - Page 10

• Manufacturer Part Number: 24AA256-EMC
• Manufacturer: MICROCHIP [Microchip Technology]

24AAXX/24LCXX/24FCXX
4.0
Each 24XX device supports a bidirectional, 2-wire bus
and data transmission protocol. A device that sends
data onto the bus is defined as a transmitter, while a
device receiving data is defined as a receiver. The bus
has to be controlled by a master device which gener-
ates the Serial Clock (SCL), controls the bus access
and generates the Start and Stop conditions, while the
24XX works as slave. Both master and slave can
operate as transmitter or receiver, but the master
device determines which mode is activated.
Block Diagram
DS21930B-page 10
A0*A1*A2*
SDA
* A0, A1, A2, WP and page latches are not used by some
devices.
See Table 1-1, Device Selection Table, for details.
I/O
C
L
ontrol
ogic
V
V
I/O
CC
SS
SCL
FUNCTIONAL DESCRIPTION
WP*
M
C
L
emory
ontrol
ogic
XDEC
HV Generator
Page Latches*
R/W Control
Sense Amp.
EEPROM
Array
YDEC
© 2007 Microchip Technology Inc.