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X9241AMV

Description
Quad Digitally Controlled Potentiometer (XDCP)
Categoryaccessories   
File Size708KB,17 Pages
ManufacturerIntersil ( Renesas )
Websitehttp://www.intersil.com/cda/home/
Download Datasheet View All

X9241AMV Overview

Quad Digitally Controlled Potentiometer (XDCP)

DATASHEET
X9241A
Quad Digital Controlled Potentionmeters (XDCP™) Non-Volatile/Low
Power/2-Wire/64 Taps
The X9241A integrates four digitally controlled
potentiometers (XDCP) on a monolithic CMOS integrated
microcircuit.
The digitally controlled potentiometer is implemented using
63 resistive elements in a series array. Between each
element are tap points connected to the wiper terminal
through switches. The position of the wiper on the array is
controlled by the user through the 2-wire bus interface. Each
potentiometer has associated with it a volatile Wiper Counter
Register (WCR) and 4 nonvolatile Data Registers
(DR0:DR3) that can be directly written to and read by the
user. The contents of the WCR controls the position of the
wiper on the resistor array through the switches. Power up
recalls the contents of DR0 to the WCR.
The XDCP 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, and
signal processing.
FN8164
Rev 7.00
August 17, 2015
Features
• Four potentiometers in one package
• 2-wire serial interface
• Register oriented format
- Direct read/write/transfer of wiper positions
- Store as many as four positions per potentiometer
• Terminal Voltages: +5V, -3.0V
• Cascade resistor arrays
• Low power CMOS
• High Reliability
- Endurance–100,000 data changes per bit per register
- Register data retention–100 years
• 16-bytes of nonvolatile memory
• 3 resistor array values
- 2k10k50kor combination
- Cascadable for values of 4kto 200k
• Resolution: 64 taps each pot
• 20 Ld plastic DIP, 20 Ld TSSOP and 20 Ld SOIC
packages
• Pb-free available (RoHS compliant)
Block Diagram
V
CC
V
SS
R0 R1
WIPER
COUNTER
REGISTER
(WCR)
V
H0
/R
H0
R0 R1
WIPER
COUNTER
REGISTER
(WCR)
REGISTER
ARRAY
POT 2
V
H2
/
R
H2
R2 R3
SCL
SDA
A0
A1
A2
A3
DATA
R0 R1
INTERFACE
AND
CONTROL
CIRCUITRY
V
L0
/R
L0
V
W0
/R
W0
R2 R3
V
L2
/R
L2
V
W2
/R
W2
8
V
H1
/R
H1
WIPER
COUNTER
REGISTER
(WCR)
REGISTER
ARRAY
POT 1
R0 R1
WIPER
COUNTER
REGISTER
(WCR)
REGISTER
ARRAY
POT 3
V
H3
/R
H3
R2 R3
V
L1
/R
L1
V
W1
/R
W1
R2 R3
V
L3
/R
L3
V
W3
/R
W3
FN8164 Rev 7.00
August 17, 2015
Page 1 of 17
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