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Intersil Electronic Components Datasheet

X93254 Datasheet

Dual Digitally Controlled Potentiometers

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®
Data Sheet
March 1, 2005
X93254
FN8186.0
Dual Digitally Controlled Potentiometers
(XDCPs™)
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 of ± 30%
—Terminal voltage, 0 to VCC
• Low power CMOS
—VCC = 3V±10%
—Active current, 250µA max
—Standby current, 1µA max
• High reliability
—Endurance 200,000 data changes per bit
—Register data retention, 100 years
• RTOTAL value = 50k
• 14-lead TSSOP package
DESCRIPTION
The Intersil X93254 is a dual digitally controlled poten-
tiometer (XDCP). The device consists of two resistor
arrays, wiper switches, a control section, and nonvola-
tile memory. The wiper positions are controlled by indi-
vidual Up/Down interfaces.
A potentiometer is implemented by a resistor array
composed of 31 resistive elements and a wiper switch-
ing 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 non-
volatile memory and then be recalled upon a subse-
quent 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
www.DataSheet4U.com
BLOCK DIAGRAM
VCC (Supply Voltage)
Up/Down
(U/D1)
Increment
(INC1)
Device Select
(CS1)
Up/Down
(U/D2)
Increment
(INC2)
30K
30K
Control
and
Memory
Control
and
Memory
RH1
RL1
RH2
RL2
Device Select
(CS2)
VSS (Ground)
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832 | 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.


Intersil Electronic Components Datasheet

X93254 Datasheet

Dual Digitally Controlled Potentiometers

No Preview Available !

PIN CONFIGURATION
X93254
TSSOP
DNC*
RL1
CS1
INC2
U/D2
RH2
VSS
1 14
2 13
X93254
3 12
4 11
5 10
69
78
*Do not connect.
RH1
U/D1
INC1
VCC
CS2
RL2
DNC*
X93254 ORDERING CODES
Ordering Number
X93254UV14I-3
RTOTAL
50k
PIN DESCRIPTIONS
TSSOP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Symbol
DNC
RL1
CS1
INC2
U/D2
RH2
VSS
DNC
RL2
CS2
VCC
INC1
U/D1
RH1
Do Not Connect.
Low Terminal 1.
Chip Select 1.
Increment 2.
Up/Down 2.
High Terminal 2.
Ground.
Do Not Connect.
Low Terminal 2.
Chip Select 2.
Supply Voltage.
Increment 1.
Up/Down 1.
High Terminal 1.
Package
14-lead TSSOP package
Temperature Range
-40°C to +85°C
Description
2 FN8186.0
March 1, 2005


Part Number X93254
Description Dual Digitally Controlled Potentiometers
Maker Intersil Corporation
Total Page 10 Pages
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