isl22444 Intersil Corporation, isl22444 Datasheet - Page 2

• Manufacturer Part Number: isl22444
• Description: Quad Digitally Controlled Potentiometer Xdcp? , Low Noise, Low Power, Spi? Bus, 256 Taps
• Manufacturer: Intersil Corporation

Block Diagram
Pinouts
RW3
GND
RW2
SCK
SDO
RH3
RH2
RL3
RL2
NC
SCK
SDO
SDI
CS
10
1
2
3
4
5
6
7
8
9
(20 LEAD TSSOP)
TOP VIEW
2
ISL22444
INTERFACE
SPI
20
19
18
17
16
15
14
13
12
11
RW0
RL0
RH0
V-
VCC
SDI
CS
RH1
RL1
RW1
NON-VOLATILE
REGISTERS
POWER-UP,
CONTROL
AND
STATUS
LOGIC
ISL22444
GND
VCC
V-
RW3
GND
SCK
SDO
NC
WR3
WR2
WR1
WR0
1
2
3
4
5
20
6
(20 LEAD QFN)
19
TOP VIEW
7
ISL22444
18
8
17
RW3
RW2
RW1
RW0
RH3
RH2
RH1
RH0
RL3
RL2
RL1
RL0
9
16
10
15
14
13
12
11
V-
VCC
SDI
CS
RH1
May 24, 2007
FN6426.0