X24C02
PIN DESCRIPTIONS
Serial Clock (SCL)
The SCL input is used to clock all data into and out of the
device.
Serial Data (SDA)
SDA is a bidirectional pin used to transfer data into and out
of the device. It is an open drain output and may be
wire-ORed with any number of open drain or open
collector outputs.
An open drain output requires the use of a pull-up
resistor. For selecting typical values, refer to the Guide-
lines for Calculating Typical Values of Bus Pull-Up
Resistors graph.
Address (A
0
, A
1
, A
2
)
The address inputs are used to set the least significant
three bits of the seven bit slave address. These inputs
can be static or actively driven. If used statically they must
be tied to V
SS
or V
CC
as appropriate. If actively
driven, they must be driven to V
SS
or to V
CC
.
Write Control (WC)
The Write Control input controls the ability to write to the
device. When WC is LOW (tied to V
SS
) the X24C02 will
be enabled to perform write operations. When WC is HIGH
(tied to V
CC
) the internal high voltage circuitry will
be disabled and all writes will be disabled.
A
0
A
1
A
2
V
SS
PIN CONFIGURATION
DIP/SOIC/MSOP
1
2
3
4
X24C02
8
7
6
5
V
CC
WC
SCL
SDA
3838 FHD F02
PIN DESCRIPTIONS
Symbol
A
0
–A
2
SDA
SCL
WC
V
SS
V
CC
Description
Address Inputs
Serial Data
Serial Clock
Write Control
Ground
+5V
3838 PGM T01
2
ICMIC [ IC MICROSYSTEMS ]
