X9268TB24-2.7 datasheet, PDF - EEWORLD Datasheet

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X9268TB24-2.7: DescriptionDigital Potentiometer, 2 Func, 100000ohm, 2-wire Serial Control Interface, 256 Positions, CMOS, PBGA24, XBGA-24; CategoryAnalog mixed-signal IC converter; File Size141KB，24 Pages; ManufacturerXicor Inc.

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X9268TB24-2.7 Overview

Digital Potentiometer, 2 Func, 100000ohm, 2-wire Serial Control Interface, 256 Positions, CMOS, PBGA24, XBGA-24

X9268TB24-2.7 Parametric

Parameter Name	Attribute value
package instruction	XBGA-24
Reach Compliance Code	unknown
Other features	NONVOLATILE MEMORY
control interface	2-WIRE SERIAL
Converter type	DIGITAL POTENTIOMETER
JESD-30 code	R-PBGA-B24
length	4.553 mm
Number of functions	2
Number of positions	256
Number of terminals	24
Maximum operating temperature	70 °C
Minimum operating temperature
Package body material	PLASTIC/EPOXY
encapsulated code	VFBGA
Package shape	RECTANGULAR
Package form	GRID ARRAY, VERY THIN PROFILE, FINE PITCH
Certification status	Not Qualified
resistance law	LINEAR
Maximum resistor tolerance	20%
Maximum resistor terminal voltage	5.5 V
Minimum resistor terminal voltage	-5.5 V
Maximum seat height	0.765 mm
surface mount	YES
technology	CMOS
Nominal temperature coefficient	300 ppm/°C
Temperature level	COMMERCIAL
Terminal form	BALL
Terminal pitch	0.5 mm
Terminal location	BOTTOM
Nominal total resistance	100000 Ω
width	2.775 mm
Base Number Matches	1

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PPLICATION

OTES AND

EVELOPMENT

YSTEM

A V A I L A B L E

AN99 • AN115 • AN124 •AN133 • AN134 • AN135

Single Supply / Low Power / 256-tap / 2-Wire bus

X9268

Dual Digitally-Controlled (XDCP

) Potentiometers

FEATURES

• Dual–Two separate potentiometers

• 256 resistor taps/pot–0.4% resolution

• 2-Wire Serial Interface for write, read, and

transfer operations of the potentiometer

•

Wiper Resistance, 100

Ω

typical @ V+ = 5V, V- = -5V

• 16 Nonvolatile Data Registers for Each

Potentiometer

• Nonvolatile Storage of Multiple Wiper Positions

• Power On Recall. Loads Saved Wiper Position on

Power Up.

• Standby Current < 5µA Max

• V

: 2.7V to 5.5V Operation

• 50K

Ω

, 100K

Ω

versions of End to End Pot

Resistance

• Endurance: 100,000 Data Changes per Bit per

• 100 yr. Data Retention

• 24-Lead SOIC, 24-Lead XBGA

• Low Power CMOS

• Power Supply V

= 2.7V to 5.5V

V+ = 2.7V to 5.5V

V- = -2.7V to -5.5V

FUNCTIONAL DIAGRAM

DESCRIPTION

The X9268 integrates 2 digitally controlled

potentiometer (XDCP) on a monolithic CMOS

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

2-Wire bus interface. Each 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.

2-Wire

Bus

Interface

Address

Data

Status

Write

Read

Transfer

Inc/Dec

Bus

Interface

and Control

Control

Power On Recall

Wiper Counter

Registers (WCR)

Data Registers

(DR0–DR3)

V-

50KΩ or 100KΩ versions

REV 1.1.2 11/12/00

www.xicor.com

Characteristics subject to change without notice.

1 of 24

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package instruction	XBGA-24	XBGA-24	XBGA-24	XBGA-24	XBGA-24	XBGA-24	XBGA-24
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	unknown
Other features	NONVOLATILE MEMORY	NONVOLATILE MEMORY	NONVOLATILE MEMORY	NONVOLATILE MEMORY	NONVOLATILE MEMORY	NONVOLATILE MEMORY	NONVOLATILE MEMORY
control interface	2-WIRE SERIAL	2-WIRE SERIAL	2-WIRE SERIAL	2-WIRE SERIAL	2-WIRE SERIAL	2-WIRE SERIAL	2-WIRE SERIAL
Converter type	DIGITAL POTENTIOMETER	DIGITAL POTENTIOMETER	DIGITAL POTENTIOMETER	DIGITAL POTENTIOMETER	DIGITAL POTENTIOMETER	DIGITAL POTENTIOMETER	DIGITAL POTENTIOMETER
JESD-30 code	R-PBGA-B24	R-PBGA-B24	R-PBGA-B24	R-PBGA-B24	R-PBGA-B24	R-PBGA-B24	R-PBGA-B24
length	4.553 mm	4.553 mm	4.553 mm	4.553 mm	4.553 mm	4.553 mm	4.553 mm
Number of functions	2	2	2	2	2	2	2
Number of positions	256	256	256	256	256	256	256
Number of terminals	24	24	24	24	24	24	24
Maximum operating temperature	70 °C	85 °C	85 °C	70 °C	70 °C	70 °C	85 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	VFBGA	VFBGA	VFBGA	VFBGA	VFBGA	VFBGA	VFBGA
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	GRID ARRAY, VERY THIN PROFILE, FINE PITCH	GRID ARRAY, VERY THIN PROFILE, FINE PITCH	GRID ARRAY, VERY THIN PROFILE, FINE PITCH	GRID ARRAY, VERY THIN PROFILE, FINE PITCH	GRID ARRAY, VERY THIN PROFILE, FINE PITCH	GRID ARRAY, VERY THIN PROFILE, FINE PITCH	GRID ARRAY, VERY THIN PROFILE, FINE PITCH
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
resistance law	LINEAR	LINEAR	LINEAR	LINEAR	LINEAR	LINEAR	LINEAR
Maximum resistor tolerance	20%	20%	20%	20%	20%	20%	20%
Maximum resistor terminal voltage	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum resistor terminal voltage	-5.5 V	-5.5 V	-5.5 V	-5.5 V	-5.5 V	-5.5 V	-5.5 V
Maximum seat height	0.765 mm	0.765 mm	0.765 mm	0.765 mm	0.765 mm	0.765 mm	0.765 mm
surface mount	YES	YES	YES	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Nominal temperature coefficient	300 ppm/°C	300 ppm/°C	300 ppm/°C	300 ppm/°C	300 ppm/°C	300 ppm/°C	300 ppm/°C
Temperature level	COMMERCIAL	INDUSTRIAL	INDUSTRIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	INDUSTRIAL
Terminal form	BALL	BALL	BALL	BALL	BALL	BALL	BALL
Terminal pitch	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm	0.5 mm
Terminal location	BOTTOM	BOTTOM	BOTTOM	BOTTOM	BOTTOM	BOTTOM	BOTTOM
Nominal total resistance	100000 Ω	100000 Ω	100000 Ω	100000 Ω	50000 Ω	50000 Ω	50000 Ω
width	2.775 mm	2.775 mm	2.775 mm	2.775 mm	2.775 mm	2.775 mm	2.775 mm
Base Number Matches	1	1	1	1	-	-	-
Nominal supply voltage	-	-	5 V	5 V	5 V	-	5 V

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