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PDF ( 数据手册 , 数据表 ) X93255

零件编号 X93255
描述 Dual Digitally Controlled Potentiometers
制造商 Intersil Corporation
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X93255 数据手册, 描述, 功能
®
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.







X93255 pdf, 数据表
X93255
TSSOP PACKAGING INFORMATION
14-Lead Plastic, TSSOP, Package Code V14
.025 (.65) BSC
.169 (4.3)
.177 (4.5)
.252 (6.4) BSC
.193 (4.9)
.200 (5.1)
.0075 (.19)
.0118 (.30)
.041 (1.05)
.002 (.05)
.006 (.15)
0° - 8°
.019 (.50)
.029 (.75)
Detail A (20X)
.010 (.25)
Gage Plane
Seating Plane
.031 (.80)
.041 (1.05)
See Detail “A”
NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS)
All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without
notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
8 FN8187.0
March 4, 2005














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