ISL22512 Datasheet, PDF (2/11 Pages) Intersil Corporation – Single Push Button Controlled Potentiometer XDCP

ISL22512
Pinout
ISL22512
(8 LD SOIC)
TOP VIEW
O
PU
1
PD
2
RH
3
V_SS
4
8
V_CC
7
ASE
6
RL
5
RW
ISL22512
(10 LD µTQFN)
TOP VIEW
NC
O
PU 1
9 ^VCC
PD ²
8 ASE
RH 3
V_{SS 4}
7 RL
6 ^RW
NC
Pin Descriptions
SOIC
PIN
1
2
3
4
5
6
7
8
µTQFN
PIN SYMBOL
BRIEF DESCRIPTION
1
PU The PU is a falling-edge triggered input with internal pull-up. Toggling PU will move the wiper close to RH
terminal.
2
PD The PD is a falling-edge triggered input with internal pull-up. Toggling PD will move the wiper close to RL
terminal.
3
RH The RH and RL pins of the ISL22511 are equivalent to the fixed terminals of a mechanical potentiometer. The
minimum voltage is VSS and the maximum is VCC. The terminology of RH and RL references the relative
position of the terminal in relation to wiper movement direction selected by the PU/PD input.
4
V_SS Ground
6
RW The RW pin is the wiper terminal of the potentiometer which is equivalent to the movable terminal of a
mechanical potentiometer.
7
RL The RH and RL pins of the ISL22511 are equivalent to the fixed terminals of a mechanical potentiometer. The
minimum voltage is VSS and the maximum is VCC. The terminology of RH and RL references the relative
position of the terminal in relation to wiper movement direction selected by the PU/PD input.
8
ASE Active low AUTOSTORE enable input or Manual Store active low input
9
5, 10
V_CC Supply Voltage
NC No connection
Block Diagrams
V_CC (SUPPLY VOLTAGE)
PU
PD
ASE
CONTROL
AND
MEMORY
PU
PD
RH
RW
RL
ASE
V_SS (GROUND)
GENERAL
4-BIT
UP/DOWN
COUNTER
4-BIT
NONVOLATILE
MEMORY
STORE AND
CONTROL
RECALL
CIRCUITRY
31
30
29
28
ONE
OF
THIRTY
TWO
DECODER
2
RH
RW
TRANSFER RESISTOR
GATES
ARRAY
1
0
DETAILED
RL
2
FN6679.0
March 24, 2008