X93254 Potentiometers Datasheet

X93254 Datasheet, PDF, Equivalent


Part Number

X93254

Description

Dual Digitally Controlled Potentiometers

Manufacture

Intersil Corporation

Total Page 10 Pages
Datasheet
Download X93254 Datasheet


X93254
®
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.

X93254
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


Features ® X93254 Data Sheet March 1, 2005 FN81 86.0 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 of ± 30% —Terminal voltage, 0 to VCC • Low power CMOS —VCC = 3V±10 % —Active current, 250µA max —Stan dby current, 1µA max • High reliabil ity —Endurance 200,000 data changes p er bit —Register data retention, 100 years • RTOTAL value = 50kΩ • 14- lead TSSOP package www.DataSheet4U.com DESCRIPTION The Intersil X93254 is a d ual digitally controlled potentiometer (XDCP). The device consists of two resi stor arrays, wiper switches, a control section, and nonvolatile memory. The wi per positions are controlled by individ ual Up/Down interfaces. A potentiometer is implemented by a resistor array composed of 31 resistive elemen.
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