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X9C102_06 Datasheet, PDF (1/11 Pages) Intersil Corporation – Digitally Controlled Potentiometer | |||
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Data Sheet
X9C102, X9C103, X9C104, X9C503
December 20, 2006
FN8222.1
Digitally Controlled Potentiometer
(XDCPâ¢)
FEATURES
⢠Solid-state potentiometer
⢠3-wire serial interface
⢠100 wiper tap points
âWiper position stored in nonvolatile memory
and recalled on power-up
⢠99 resistive elements
âTemperature compensated
âEnd to end resistance, ±20%
âTerminal voltages, ±5V
⢠Low power CMOS
âVCC = 5V
âActive current, 3mA max.
âStandby current, 750µA max.
⢠High reliability
âEndurance, 100,000 data changes per bit
âRegister data retention, 100 years
⢠X9C102 = 1kΩ
⢠X9C103 = 10kΩ
⢠X9C503 = 50kΩ
⢠X9C104 = 100kΩ
⢠Packages
â8 Ld SOIC and 8 Ld PDIP
⢠Pb-free plus anneal available (RoHS compliant)
BLOCK DIAGRAM
DESCRIPTION
The X9Cxxx are Intersil digitally controlled (XDCP)
potentiometers. The device consists of a resistor
array, wiper switches, a control section, and nonvola-
tile memory. The wiper position is controlled by a
three-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 potentiom-
eter or as a two-terminal variable resistor in a wide
variety of applications including:
â control
â parameter adjustments
â signal processing
U/D
INC
CS
VCC (Supply Voltage)
Up/Down
(U/D)
Increment
(INC)
Device
Select
(CS)
Control
and
Memory
VSS (Ground)
General
VH/RH
RW/VW
VL/RL
VCC
GND
7-Bit
Up/Down
Counter
7-Bit
Nonvolatile
Memory
Store and
Recall
Control
Circuitry
99
98
97
96
One
of
One-
Hundred
Decoder
2
1
0
Transfer
Gates
Resistor
Array
Detailed
RH/VH
RL/VL
RW/VW
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
XDCP is a trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2005, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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