X9319 XDCP Datasheet

X9319 Datasheet, PDF, Equivalent


Part Number

X9319

Description

Digitally Controlled Potentiometer (XDCP)

Manufacture

Xicor

Total Page 10 Pages
Datasheet
Download X9319 Datasheet


X9319
Digitally Controlled Potentiometer (XDCP)
X9319
FEATURES
• Solid-state potentiometer
• 3-wire serial interface
• Terminal voltage, 0 to +10V
• 100 wiper tap points
—Wiper position stored in nonvolatile memory
and recalled on power-up
• 99 resistive elements
—Temperature compensated
—End to end resistance range ± 20%
• Low power CMOS
—VCC = 5V
—Active current, 3mA max.
—Standby current, 1mA max.
• High reliability
—Endurance, 100,000 data changes per bit
—Register data retention, 100 years
• RTOTAL value = 10Kand 50K
• Packages
—8-lead SOIC and DIP
APPLICATIONS
• LCD bias control
• DC bias adjustment
• Gain and offset trim
• Laser diode bias control
• Voltage regulator output control
DESCRIPTION
The Xicor X9319 is a digitally controlled potentiometer
(XDCP). The device consists of a resistor array, wiper
switches, a control section, and nonvolatile memory.
The wiper position is controlled by a 3-wire interface.
The potentiometer is implemented by a resistor array
composed of 99 resistive elements and a wiper switch-
ing network. Between each element and at either end
are tap points accessible to the wiper terminal. The
position of the wiper element is controlled by the 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.
The device can be used as a three-terminal
potentiometer for voltage control or as a two-terminal
variable resistor for current control in a wide variety of
applications.
BLOCK DIAGRAM
VCC (Supply Voltage)
Up/Down
(U/D)
Increment
(INC)
Device Select
(CS)
Control
and
Memory
VSS (Ground)
General
XDCP is a trademark of Xicor, Inc.
REV 1.7 7/10/03
U/D
INC
CS
RH
RW
RL
VVCSSC
Up/Down
Counter
7-Bit
Nonvolatile
Memory
Store and
Recall
Control
Circuitry
99
98
97
One 96
of
One
Hundred
Decoder
2
1
0
Wiper
Switches
Resistor
Array
Detailed
RH
RL
RW
www.xicor.com
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X9319
PIN CONFIGURATION
DIP/SOIC
INC 1
8 VCC
U/D 2 X9319 7 CS
RH 3
6 RL
VSS 4
5 RW
X9319
ORDERING INFO
Ordering
Number
X9319WS8
X9319WS8I
X9319WP8
X9319WP8I
X9319US8
X9319US8I
X9319UP8
X9319UP8I
RTOTAL
10K
10K
10K
10K
50K
50K
50K
50K
8-lead SOIC
8-lead SOIC
8-lead Plastic DIP
8-lead Plastic DIP
8-lead SOIC
8-lead SOIC
8-lead Plastic DIP
8-lead Plastic DIP
Package
Operating Temperature
Range
0°C to 70°C
-40°C to +85°C
0°C to 70°C
-40°C to +85°C
0°C to 70°C
-40°C to +85°C
0°C to 70°C
-40°C to +85°C
PIN DESCRIPTIONS
DIP/
SOIC
1
2
3
4
5
6
7
8
Symbol
INC
U/D
RH
VSS
RW
RL
CS
VCC
Brief Description
Increment. Toggling INC while CS is low moves the wiper either up or down.
Up/Down. The U/D input controls the direction of the wiper movement.
The high terminal is equivalent to one of the fixed terminals of a mechanical potentiometer.
Ground.
The wiper terminal is equivalent to the movable terminal of a mechanical potentiometer.
The low terminal is equivalent to one of the fixed terminals of a mechanical potentiometer.
Chip Select. The device is selected when the CS input is LOW, and de-selected when CS is
high.
Supply Voltage.
REV 1.7 7/10/03
www.xicor.com
2 of 10


Features Digitally Controlled Potentiometer (XDCP ™) FEATURES • • • • Solid-sta te potentiometer 3-wire serial interfac e Terminal voltage, 0 to +10V 100 wiper tap points —Wiper position stored in nonvolatile memory and recalled on pow er-up 99 resistive elements —Temperat ure compensated —End to end resistanc e range ± 20% Low power CMOS —VCC = 5V —Active current, 3mA max. —Stand by current, 1mA max. High reliability Endurance, 100,000 data changes per b it —Register data retention, 100 year s RTOTAL value = 10KΩ and 50KΩ Pack ages —8-lead SOIC and DIP DESCRIPTION X9319 The Xicor X9319 is a digitally controlled potentiometer (XDCP). The d evice consists of a resistor array, wip er switches, a control section, and non volatile memory. The wiper position is controlled by a 3-wire interface. The p otentiometer is implemented by a resist or array composed of 99 resistive eleme nts and a wiper switching network. Betw een each element and at either end are tap points accessible to the wiper terminal. The position.
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