X93255_08 Datasheet, PDF (1/7 Pages) Intersil Corporation – Dual Digitally Controlled Potentiometers(XDCPs™)

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Data Sheet
February 4, 2008
X93255
FN8187.1
Dual Digitally Controlled Potentiometers
(XDCPs™)
The Intersil X93255 is a dual digitally controlled
potentiometer (XDCP). The device consists of two resistor
arrays, wiper switches, a control section, and nonvolatile
memory. The wiper positions are controlled by individual
Up/Down interfaces.
A potentiometer is implemented by a resistor array
composed of 31 resistive elements and a wiper switching
network. The position of each wiper element is controlled by
a set of independent 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.
Each potentiometer is connected as a two-terminal variable
resistor and can be used in a wide variety of applications
including:
• Bias and gain control
• LCD Contrast Adjustment
Pinout
X93255
(14 LD TSSOP)
TOP VIEW
Features
• Dual solid-state potentiometers
• Independent Up/Down interfaces
• 32 wiper tap points per potentiometer
- Wiper position stored in nonvolatile memory and
recalled on power-up
• 31 resistive elements per potentiometer
- Temperature compensated
- Maximum resistance tolerance ± 25%
- Terminal voltage, 0 to V_CC
• Low power CMOS
- V_CC = 5V ± 10%
- Active current, 200µA typ.
- Standby current, 4µA max
• High reliability
- Endurance 200,000 data changes per bit
- Register data retention, 100 years
• R_TOTAL value = 50kΩ
• Package
- 14 Ld TSSOP
DNC*
1
R_L1
2
CS₁
3
INC₂
4
U/D₂
5
R_H2
6
V_SS
7
14
R_H1
13
U/D₁
12
INC₁
11
V_CC
10
CS₂
9
R_L2
8
DNC*
*Do not connect.
Ordering Information
PART NUMBER
X93255UV14I
PART MARKING V_CC LIMITS (V) R_TOTAL (kΩ)
X9325 5UVI
5 ±10%
50
X93255UV14IT1*
X9325 5UVI
5 ±10%
50
* Please refer to TB347 for details on reel specifications.
TEMP
RANGE (°C)
-40 to +85
-40 to +85
PACKAGE
14 Ld TSSOP
14 Ld TSSOP
PKG DWG. #
M14.173
M14.173
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2008. All Rights Reserved
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