X24C02
PIN DESCRIPTIONS
PIN CONFIGURATION
Serial Clock (SCL)
The SCL input is used to clock all data into and out of the
device.
DIP/SOIC/MSOP
V
1
2
3
4
8
7
6
5
CC
A
A
0
1
WC
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
X24C02
A
2
SCL
SDA
V
SS
wire-ORed with any number of open drain or open
collector outputs.
3838 FHD F02
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.
PIN DESCRIPTIONS
Symbol
Description
Address (A0, A1, A2)
A –A
0
Address Inputs
Serial Data
Serial Clock
Write Control
Ground
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
SDA
SCL
WC
be tied to VSS or VCC as appropriate. If actively
driven, they must be driven to VSS or to VCC.
V
SS
V
CC
+5V
Write Control (WC)
3838 PGM T01
The Write Control input controls the ability to write to the
device. When WC is LOW (tied to VSS) the X24C02 will
be enabled to perform write operations. When WC is HIGH
(tied to VCC) the internal high voltage circuitry will
be disabled and all writes will be disabled.
2
ICMIC [ IC MICROSYSTEMS ]
