ISL23511 Datasheet, PDF (2/11 Pages) Intersil Corporation – Low Noise, Low Power, 32 Taps, Push Button Controlled Potentiometer

ISL23511
Pinouts
ISL23511
(8 LD SOIC)
TOP VIEW
O
PU
1
PD
2
RH
3
V_SS
4
8
V_CC
7
NC
6
RL
5
RW
ISL23511
(10 LD µTDFN)
TOP VIEW
NC
O
PU 1
9 ^NC
PD ²
RH 3
V_{SS 4}
8 V_CC
7 NC
6 ^RL
RW
Pin Descriptions
SOIC
PIN
1
2
3
4
5
6
7
8
µTQFN
PIN SYMBOL
BRIEF DESCRIPTION
1
PU The PU is a negative-edge triggered input with internal pull-up. Toggling PU will move the wiper close to RH
terminal.
2
PD The PD is a negative-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 ISL23511 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
5
RW The RW pin is the wiper terminal of the potentiometer which is equivalent to the movable terminal of a mechanical
potentiometer.
6
RL The RH and RL pins of the ISL23511 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.
7, 9, 10 NC No connection
8
V_CC Supply Voltage
Block Diagrams
PU
V_CC (SUPPLY VOLTAGE)
PD
RH
PU
CONTROL
PD
BLOCK
RW
RL
V_SS (GROUND)
GENERAL
5-BIT
UP/DOWN
COUNTER
31
30
29
ONE 28
OF
THIRTY
TWO
DECODER
2
1
0
RH
RW
TRANSFER RESISTOR
GATES
ARRAY
RL
DETAILED
2
FN6588.0
December 3, 2007