ISL22349 Datasheet, PDF (2/12 Pages) Intersil Corporation – Quad Digitally Controlled Potentiometers

Block Diagram
SCL
SDA
A0
A1
A2
I²C
INTERFACE
SHDN
ISL22349
V_CC
POWER-UP
INTERFACE,
CONTROL
AND STATUS
LOGIC
NON-
VOLATILE
REGISTERS
WR3
WR2
WR1
WR0
V_CC
V_CC
V_CC
V_CC
RW3
RW2
RW1
RW0
Pin Descriptions
TSSOP PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SYMBOL
RW3
A2
SCL
SDA
GND
RW2
RW1
NC
A0
A1
NC
V_CC
SHDN
RW0
GND
DESCRIPTION
“Wiper” terminal of DCP3
Device address input for the I²C interface
Open drain I²C interface clock input
Open drain serial data I/O for the I²C interface
Device ground pin and the RL connection for each DCP
“Wiper” terminal of DCP2
“Wiper” terminal of DCP1
Device address input for the I²C interface
Device address input for the I²C interface
Power supply pin and the RH connection for each DCP
Shutdown active low input
“Wiper” terminal of DCP0
2
FN6331.2
September 15, 2006