ISL23445 Intersil Corporation, ISL23445 Datasheet - Page 2

• Manufacturer Part Number: ISL23445
• Description: Low Voltage Digitally Controlled Potentiometer
• Manufacturer: Intersil Corporation

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Block Diagram
Pin Configurations
GND
RW1
V
RH0
RH1
RL1
CC
V
LOGIC
SDO
SCK
SDI
RW0
RW1
GND
RH0
RH1
CS
V
RL0
RL1
SDI
CC
1
2
3
4
5
6
10
1
2
3
4
5
6
7
8
9
20
7
(20 LD TSSOP)
(20 LD QFN)
TOP VIEW
ISL23445
TOP VIEW
ISL23445
19
8
BLOCK
V
2
LOGIC
I/O
18
9
17
10
20
19
18
17
16
15
14
13
12
11
RL3
RW3
RH3
RL2
RW2
RH2
SCK
SDO
GND
CS
SHIFTER
16
15
14
13
12
11
6
LEVEL
RH3
RL2
RW2
RH2
SCK
SDO
INTERFACE
ISL23445
POWER UP
CONTROL
STATUS
LOGIC
AND
V
GND
CC
Pin Descriptions
TSSOP
8, 12
10
11
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
9
6, 10
QFN
19
20
11
12
13
14
15
16
18
17
1
2
3
4
5
7
8
9
REGISTER
REGISTER
REGISTER
REGISTER
VOLATILE
VOLATILE
VOLATILE
VOLATILE
WR0
WR1
WR2
WR3
SYMBOL
V
RW0
RW1
RW2
RW3
RH0
RH1
GND
SDO
RH2
RH3
RL0
RL1
LOGIC
SCK
RL2
RL3
V
SDI
CS
CC
DCP0 “low” terminal
DCP0 wiper terminal
Analog power supply.
Range 1.7V to 5.5V
DCP0 “high” terminal
DCP1 “low” terminal
DCP1 wiper terminal
DCP1 “high” terminal
Ground pin
SPI bus /logic supply
Range 1.2V to 5.5V
Logic Pin - Serial bus data input
Logic Pin - Active low chip select
Logic Pin - Serial bus data output
(configurable)
Logic Pin - Serial bus clock input
DCP2 “high” terminal
DCP2 wiper terminal
DCP2 “low” terminal
DCP3 “high” terminal
DCP3 wiper terminal
DCP3 “low” terminal
DESCRIPTION
RH0
RW0
RL0
RH1
RW1
RL1
RH2
RW2
RL2
RH3
RW3
RL3
June 21, 2011
FN7874.0
Datasheet pdf - http://www.DataSheet4U.net/