X9421 datasheet(1/21 Pages) XICOR

номер детали	X9421

подробное описание детали	Single Digitally Controlled (XDCP) Potentiometer

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производитель	XICOR [Xicor Inc.]

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REV 1.1.6 8/1/02

Characteristics subject to change without notice.

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X9421

Single Digitally Controlled (XDCP) Potentiometer

FEATURES

• Single Voltage Potentiometer

• 64 Resistor Taps

• SPI Serial Interface for write, read, and transfer

operations of the potentiometer

• Wiper Resistance, 150

Ω Typical at 5V

• 4 Non-Volatile Data Registers

• Non-Volatile Storage of Multiple Wiper Positions

• Power On Recall. Loads Saved Wiper Position on

Power Up.

• Standby Current < 5µA Max

•VCC : 2.7V to 5.5V Operation

• 2.5K

Ω, 10KΩ End to End Resistance

• 100 yr. Data Retention

• Endurance: 100, 000 Data Changes per Bit per

Register

• 14-Lead TSSOP, 16-Lead SOIC

• Low Power CMOS

DESCRIPTION

The X9421 integrates a single digitally controlled

potentiometer

(XDCP)

on

a

monolithic

CMOS

integrated circuit.

The digital 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 SPI bus

interface. The potentiometer has associated with it a

volatile Wiper Counter Register (WCR) and a four non-

volatile Data Registers 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

though the switches. Powerup recalls the contents of

the default data register (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.

BLOCK DIAGRAM

64-taps

10K

Ω

inc / dec

RH/VH

RL/VL

RW/VW

POT

VCC

VSS

SPI

bus

address

data

status

write

read

wiper

transfer

Power On Recall

Wiper Counter

Register (WCR)

Data Registers

4 Bytes

control

interface

Bus

Interface &

Control

Low Noise/Low Power/SPI Bus

APPLICATION NOTES

AVAILABLE

AN99 • AN115 • AN120 • AN124 • AN133 • AN134 • AN135

Аналогичный номер детали - X9421

производитель	номер детали	датащи	подробное описание детали
Intersil Corporation	X9421	367Kb / 21P	Single Digitally Controlled (XDCP) Potentiometer September 23, 2005
	X9421	333Kb / 20P	Single Digitally Controlled (XDCP?? Potentiometer January 14, 2009
	X9421	1Mb / 8P	DIGITAL POTENTIOMETERS
	X9421	333Kb / 20P	Single Voltage Potentiometer
Renesas Technology Corp	X9421	805Kb / 20P	Low Noise/Low Power/SPI Bus Single Digitally Controlled (XDCP?? Potentiometer

More results

Аналогичное описание - X9421

производитель	номер детали	датащи	подробное описание детали
Xicor Inc.	X9279	398Kb / 24P	Single Digitally-Controlled (XDCP) Potentiometer
Intersil Corporation	ISL95810	1Mb / 13P	Single Digitally Controlled Potentiometer (XDCP) October 7, 2005
	X9421	367Kb / 21P	Single Digitally Controlled (XDCP) Potentiometer September 23, 2005
	ISL22316	546Kb / 15P	Single Digitally Controlled Potentiometer XDCP September 1, 2009
	X9119	287Kb / 17P	Single Digitally-Controlled (XDCP?? Potentiometer
	X9271	673Kb / 22P	Single, Digitally Controlled (XDCP?? Potentiometer
	X9279	437Kb / 18P	Single Digitally-Controlled (XDCP?? Potentiometer
	X9429	323Kb / 20P	Single Digitally Controlled Potentiometer(XDCP?? October 13, 2008
	X93156	190Kb / 7P	Single Digitally Controlled Potentiometer (XDCP?? November 21, 2007
Xilinx, Inc	X9119	125Kb / 22P	Single Digitally-Controlled (XDCP ??) Potentiometer

More results

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Аналогичный номер детали - X9421

Аналогичное описание - X9421

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