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X9313USIZT1 Datasheet, PDF (1/12 Pages) Intersil Corporation – Linear, 32 Taps, 3 Wire Interface, Terminal Voltages ± VCC | |||
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Data Sheet
X9313
Digitally Controlled Potentiometer (XDCPâ¢)
January 15, 2008
FN8177.6
Linear, 32 Taps, 3 Wire Interface, Terminal
Voltages ± VCC
The Intersil X9313 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 31 resistive elements and a wiper switching
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 or
as a two-terminal variable resistor in a wide variety of
applications including:
⢠Control
⢠Parameter adjustments
⢠Signal processing
Features
⢠Solid-state potentiometer
⢠3-wire serial interface
⢠32 wiper tap points
- Wiper position stored in nonvolatile memory and
recalled on power-up
⢠31 resistive elements
- Temperature compensated
- End-to-end resistance range ±20%
- Terminal voltages, -VCC to +VCC
⢠Low power CMOS
- VCC = 3V or 5V
- Active current, 3mA max.
- Standby current, 500µA max.
⢠High reliability
- Endurance, 100,000 data changes per bit
- Register data retention, 100 years
⢠RTOTAL values = 1kΩ, 10kΩ, 50kΩ
⢠Packages
- 8 Ld SOIC, 8 Ld MSOP and 8 Ld PDIP
⢠Pb-free available (RoHS compliant)
Block Diagram
VCC (SUPPLY VOLTAGE)
DECODER
U/D
5-BIT
INC
UP/DOWN
31
CS
COUNTER
30
RH/VH
UP/DOWN
(U/D)
INCREMENT
(INC)
DEVICE SELECT
(CS)
CONTROL
AND
MEMORY
VSS (GROUND)
GENERAL
RH/VH
RW/VW
RL/VL
VCC
VSS
5-BIT
NONVOLATILE
MEMORY
STORE AND
RECALL
CONTROL
CIRCUITRY
29
28
ONE OF
THIRTY-TWO
OUTPUTS
ACTIVE
AT A
TIME
2
1
0
TRANSFER RESISTOR
GATES
ARRAY
DETAILED
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, 2008. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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