X9271UV Intersil Corporation, X9271UV Datasheet

X9271UV

Manufacturer Part Number

X9271UV

Description

Manufacturer

Intersil Corporation

Datasheets

1.X9271UVI-2.7.pdf (22 pages)

2.X9271UV.pdf (22 pages)

Specifications of X9271UV

Case

TSSOP16

Date_code

0420+

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

X9271UV14Z

Manufacturer:

Intersil

Quantity:

1 000

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Download datasheet (382Kb)

Single Digitally-Controlled (XDCP™)

Potentiometer

FEATURES

• 256 Resistor Taps

• SPI Serial Interface for write, read, and transfer

• Wiper Resistance, 100Ω typical @ V

• 16 Nonvolatile Data Registers

• Nonvolatile Storage of Multiple Wiper Positions

• Power-on Recall. Loads Saved Wiper Position on

• Standby Current < 3µA Max

• V

• 50kΩ, 100kΩ versions of End to End Resistance

• 100 yr. Data Retention

• Endurance: 100,000 Data Changes per Bit per

• 14-Lead TSSOP

• Low Power CMOS

• Pb-Free Plus Anneal Available (RoHS Compliant)

FUNCTIONAL DIAGRAM

operations of the potentiometer

Power-up.

: 2.7V to 5.5V Operation

Interface

SPI

Bus

Address

Status

Data

Data Sheet

and Control

Interface

Bus

= 5V

Transfer

Inc/Dec

Control

Write

Read

1-888-INTERSIL or 1-888-352-6832

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Power-on Recall

Data Registers

Wiper Counter

Single Supply/Low Power/256-Tap/SPI Bus

16 Bytes

DESCRIPTION

The X9271 integrates a single digitally controlled

potentiometer

integrated circuit.

The digital controlled potentiometer is implemented

using 255 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

nonvolatile 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.

November 22, 2005

All other trademarks mentioned are the property of their respective owners.

Intersil (and design) is a registered trademark of Intersil Americas Inc.

(XDCP)

50kΩ and 100kΩ

POT

256-taps

monolithic

X9271

FN8174.2

CMOS

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