X24042
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 Pull-Up
Resistor selection graph at the end of this data sheet.
Address (A
0
)
A
0
is unused by the X24042, however, it must be tied to
V
SS
to insure proper device operation.
Address (A
1
, A
2
)
The Address inputs are used to set the appropriate bits
of the seven bit slave address. These inputs can be used
static or actively driven. If used statically they must be
tied to V
SS
or V
CC
as appropriate. If driven they must be
driven to V
SS
or to V
CC
.
A0
A1
A2
VSS
1
2
3
4
X24042
PIN CONFIGURATION
DIP/SOIC
8
7
6
5
VCC
NC
SCL
SDA
3849 FHD F02
PIN NAMES
Symbol
A
0
–A
2
SDA
SCL
NC
V
SS
V
CC
Description
Address Inputs
Serial Data
Serial Clock
No Connect
Ground
Supply Voltage
3849 PGM T01
2
XICOR [ XICOR INC. ]
