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X9258UZ24 Datasheet

  • X9258UZ24

  • DIGITAL POTENTIOMETER|CMOS|BGA|24PIN|PLASTIC

  • 19頁

  • ETC

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Low Noise/Low Power
X9258
Quad Non-Volatile Digital Potentiometer
FEATURES
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Quad鈥擣our Separate Pots
256 Resistor Taps/Pot鈥?.4% resolution
2-Wire Serial Interface
Wiper Resistance, 150
鈩?/div>
typical
Four Non-Volatile Data Registers for Each Pot
Non-Volatile Storage of Wiper Position
Standby Current < 5碌A(chǔ) Max (Total Package)
V
CC
= 2.7V to 5.5V Operation
100K
鈩?/div>
, 50K
鈩?/div>
Total Pot Resistance
100 Year Data Retention
24-Lead SOIC, 24-Lead XBGA
DESCRIPTION
The X9258 digital potentiometer contains 4
separate 100K
鈩?/div>
potentiometers with a digitally
programmable wiper position to one of 256 taps on
each pot. (Other values of resistance will be available at
a later date). The wiper position is determined by a
serial digital code that is received on the 2-wire
serial port. The 255 individual resistors in each pot
are all equal, creating a linear taper from one end of
each pot to the other. There are also four 8 bit non-
volatile data registers associated with each pot for
storing system data and the most recent wiper
position. Powering up the device causes the
contents of R
0
register of each pot to be loaded into
the Wiper Counter register, restoring the last know
wiper position for each pot.
FUNCTIONAL DIAGRAM
POT0
R
0
R
1
WP
R
2
R
3
WIPER
COUNTER
REGISTER
(WCR)
V
H0
R
0
R
1
V
L0
VW0
R
2
R
3
WIPER
COUNTER
REGISTER
(WCR)
RESISTOR
ARRAY
POT 2
V
H2
V
L2
V
W2
SCL
SDA
A0
A1
A2
A3
INTERF
ACE
AND
CONTROL
CIRCUITR
Y
8
DATA
R
0
R
1
V
W1
V
W3
R
2
R
3
WIPER
COUNTER
RESISTOR
ARRAY
REGISTER
POT 1
(WCR)
V
H1
R
0
R
1
V
L1
R
2
WIPER
COUNTER
RESISTOR
ARRAY
REGISTER
(WCR)
POT 3
R
3
V
H3
V
L3
漏
Xicor, Inc. 2000 Patents Pending
9900-2006.2 2/28/00 EP
Powered by ICminer.com Electronic-Library Service CopyRight 2003
Characteristics subject to change without notice
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    XICOR [Xic...
  • 英文版
    Low Noise/Low Power/2-Wire Bus/256 Taps
    INTERSIL
  • 英文版
    Quad Digital Controlled Potentiometers (XDCP)
    XICOR
  • 英文版
    Low Noise/Low Power/2-Wire Bus/256 Taps
    INTERSIL [...
  • 英文版
    Quad Digital Controlled Potentiometers (XDCP)
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  • 英文版
    Quad Digitally-Controlled (XDCP) Potentiometers
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  • 英文版
    Single Supply/Low Power/256-Tap/2-Wire bus
    INTERSIL
  • 英文版
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    INTERSIL [...
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    Quad Digitally-Controlled (XDCP⑩) Potentiometer
    INTERSIL [...

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