X93156 Datasheet, PDF (1/8 Pages) Intersil Corporation – Digitally Controlled Potentiometer

®
Data Sheet
September 16, 2005
X93156
FN8182.2
Digitally Controlled Potentiometer
(XDCP™)
The Intersil X93156 is a three-terminal digitally controlled
potentiometer (XDCP). The device consists of a resistor
array, wiper switches, a control section, and nonvolatile
memory. The wiper position is controlled by an Up/Down
interface.
The potentiometer is implemented by a resistor array
composed of 31 resistive elements and a wiper switching
network. The position of the wiper element is controlled by
the CS, U/D, and INC inputs. The position of the wiper can
be stored in nonvolatile memory and then be recalled upon a
subsequent power-up operation.
The device can be used as a three-terminal potentiometer or
as a two terminal variable resistor in a wide variety of
applications including the programming of bias voltages,
LCD brightness and contrast control as well as the
implementation of ladder networks.
Pinouts
X93156
(8 LD MSOP)
TOP VIEW
INC
1
8
V_CC
U/D
2
7
CS
X93156
R_H
3
6
R_L
V_SS
4
5
Rw
Features
• Solid-state potentiometer
• Up/Down interface
• 32 wiper tap points
- Wiper position stored in nonvolatile memory and
recalled on power-up
• 31 resistive elements
- Temperature compensated
- Maximum resistance tolerance of ± 25%
- Terminal voltage, 0 to V_CC
• Low power CMOS
- V_CC = 2.7 V - 5.5 V
- Active current, 200µA typ.
- Standby current, 2µA max.
• High reliability
- Endurance 200,000 data changes per bit
- Register data retention, 100 years
• R_TOTAL value = 12.5kΩ, 50kΩ
• Packages
- 8 Ld MSOP, TDFN
- Pb-free plus anneal available (RoHS compliant)
X93156
(8 LD TDFN)
TOP VIEW
INC 1
U/D ²
R_H 3
V_SS
4
X93156
8 V_CC
7 _CS
6 R_L
5 Rw
**Contact factory for TDFN ordering info.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.