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Intersil Electronic Components Datasheet

X93255 Datasheet

Dual Digitally Controlled Potentiometers

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®
Data Sheet
March 4, 2005
X93255
FN8187.0
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 ± 25%
—Terminal voltage, 0 to VCC
• Low power CMOS
—VCC = 5V ± 10%
—Active current, 200µA typ.
—Standby current, 4µA max
• High reliability
—Endurance 200,000 data changes per bit
—Register data retention, 100 years
• RTOTAL value = 50k
• Packages
—14-lead TSSOP
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DESCRIPTION
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
BLOCK DIAGRAM
VCC (Supply Voltage)
Up/Down
(U/D1)
Increment
(INC1)
Device Select
(CS1)
30k
30k
Control
and
Memory
RH1
RL1
RH2
Up/Down
(U/D2)
Increment
(INC2)
Control
and
Memory
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

X93255 Datasheet

Dual Digitally Controlled Potentiometers

No Preview Available !

PIN CONFIGURATION
X93255
TSSOP
DNC*
RL1
CS1
INC2
U/D2
RH2
VSS
1 14
2 13
3 12
4 X93255 11
5 10
69
78
*Do not connect.
RH1
U/D1
INC1
VCC
CS2
RL2
DNC*
X93255 ORDERING CODES
Ordering Number
X93255UV14I
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 FN8187.0
March 4, 2005


Part Number X93255
Description Dual Digitally Controlled Potentiometers
Maker Intersil Corporation
Total Page 8 Pages
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