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Intersil Electronic Components Datasheet

X93256 Datasheet

Dual Digitally Controlled Potentiometers

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®
Data Sheet
March 24, 2006
X93256
FN8188.1
Dual Digitally Controlled Potentiometers
(XDCPs™)
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 VCC
• Low power CMOS
—VCC = 2.7 V - 5.5 V.
—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
• RTOTAL value = 12.5k, 50k
• Packages
—14 Ld TSSOP
www.DataSheet4U.com
• Pb-free plus anneal available (RoHS compliant)
BLOCK DIAGRAM
General Description
VCC (Supply Voltage)
30K
Up/Down
(U/D1 & U/D2)
Increment
(INC1 & INC2)
Device Select
(CS1 & CS2)
Control
and
Memory
VSS (Ground)
RH1
RW1
RL1
RH2
RW2
RL2
U/D1
INC1
CS1
VCC
VSS
DESCRIPTION
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
Detailed Single Potentiometer Description
5-Bit
Up/Down
Counter
5-Bit
Nonvolatile
Memory
Store and
Control
Recall
Circuitry
31
30
29
28
One
of
Thirty
Two
Decoder
2
1
0
RH1
Transfer
Gates
Resistor
Array
RW
RL1
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. 2005-2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.


Intersil Electronic Components Datasheet

X93256 Datasheet

Dual Digitally Controlled Potentiometers

No Preview Available !

PIN CONFIGURATION
X93256
Rw1
RL1
CS1
INC2
U/D2
RH2
VSS
TSSOP
1 14
2 13
3 12
4 X93256 11
5 10
69
78
RH1
U/D1
INC1
VCC
CS2
RL2
Rw2
*NC can be left unconnected, or connected to any voltage between VSS and VCC.
Ordering Information
PART NUMBER
X93256UV14I-2.7*
PART MARKING
X93256UVG
RTOTAL (k)
50
TEMPERATURE
RANGE (°C)
-40 to 85
PACKAGE
14 Ld TSSOP (4.4mm)
PKG. DWG. #
MDP0044
X93256UV14IZ-2.7*
(Note)
X93256UZG
50
-40 to 85
14 Ld TSSOP (4.4mm) (Pb-free) MDP0044
X93256WV14I-2.7*
X93256WVG
12.5
-40 to 85
14 Ld TSSOP (4.4mm)
MDP0044
X93256WV14IZ-2.7*
(Note)
X93256WZG
12.5
-40 to 85
14 Ld TSSOP (4.4mm) (Pb-free) MDP0044
*Add "T1" suffix for tape and reel.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are 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.
2 FN8188.1
March 24, 2006


Part Number X93256
Description Dual Digitally Controlled Potentiometers
Maker Intersil Corporation
Total Page 9 Pages
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