X93255 Potentiometers Datasheet

X93255 Datasheet, PDF, Equivalent


Part Number

X93255

Description

Dual Digitally Controlled Potentiometers

Manufacture

Intersil Corporation

Total Page 8 Pages
Datasheet
Download X93255 Datasheet


X93255
®
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
www.DataSheet4U.com
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.

X93255
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


Features ® X93255 Data Sheet March 4, 2005 FN81 87.0 Dual Digitally Controlled Potenti ometers (XDCPs™) FEATURES • Dual so lid-state potentiometers • Independen t Up/Down interfaces • 32 wiper tap p oints per potentiometer —Wiper positi on stored in nonvolatile memory and rec alled on power-up • 31 resistive elem ents per potentiometer —Temperature c ompensated —Maximum resistance tolera nce ± 25% —Terminal voltage, 0 to VC C • Low power CMOS —VCC = 5V ± 10% —Active current, 200µA typ. —Stan dby current, 4µA max • High reliabil ity —Endurance 200,000 data changes p er bit —Register data retention, 100 years • RTOTAL value = 50kΩ • Pac kages —14-lead TSSOP www.DataSheet4U. com BLOCK DIAGRAM DESCRIPTION The Inte rsil X93255 is a dual digitally control led potentiometer (XDCP). The device co nsists of two resistor arrays, wiper sw itches, a control section, and nonvolat ile memory. The wiper positions are con trolled by individual Up/Down interfaces. A potentiometer is implemented by a resistor array composed of 31 .
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