X93256_08 Datasheet, PDF (1/7 Pages) Intersil Corporation – Dual Digitally Controlled Potentiometers(XDCPs™)

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Data Sheet
February 1, 2008
X93256
FN8188.2
Dual Digitally Controlled Potentiometers
(XDCPs™)
The Intersil X93256 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 three-terminal
variable resistor and can be used in a wide variety of
applications including:
• Bias and Gain Control
• LCD Contrast Adjustment
Pinout
X93256
(14 LD TSSOP)
TOP VIEW
Rw1
1
14
R_L1
2
13
CS₁
3
12
INC₂
4
11
U/D₂
5
10
R_H2
6
9
V_SS
7
8
*NC can be left unconnected, or connected to
any voltage between V_SS and V_CC.
R_H1
U/D₁
INC₁
V_CC
CS₂
R_L2
Rw2
Features
• Dual solid-state potentiometers
• Individual 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 of ±25%
- Terminal voltage, 0 to V_CC
• Low power CMOS
- V_CC = 2.7V to 5.5V.
- Active current, 200µA typical per potentiometer
- Standby current, 4µA max per potentiometer
• High reliability
- Endurance 200,000 data changes per bit
- Register data retention, 100 years
• R_TOTAL value = 12.5kΩ, 50kΩ
• Package
- 14 Ld TSSOP
• Pb-free available (RoHS compliant)
Ordering Information
PART NUMBER
X93256UV14I-2.7*
PART MARKING
X9325 6UVG
V_CC LIMITS (V)
2.7 to 5.5
R_TOTAL (kΩ)
50
TEMPERATURE
RANGE (°C)
PACKAGE
-40 to +85 14 Ld TSSOP (4.4mm)
PKG.
DWG. #
M14.173
X93256UV14IZ-2.7* X9325 6UZG
(Note)
50
-40 to +85 14 Ld TSSOP (4.4mm) (Pb-free) M14.173
X93256WV14I-2.7* X9325 6WVG
12.5
-40 to +85 14 Ld TSSOP (4.4mm)
M14.173
X93256WV14IZ-2.7* X9325 6WZG
(Note)
12.5
-40 to +85 14 Ld TSSOP (4.4mm) (Pb-free) M14.173
*Add "T1" suffix for tape and reel.Please refer to TB347 for details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100%
matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations.
Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J
STD-020.
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, 2006, 2008. All Rights Reserved
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