X9258TS24IZ-2.7 Datasheet X9258US24IZ-2.7, X9258UV24IZ-2.7, X9258UV24IZ | P1-P3

X9258

Low Noise/Low Power/2-Wire Bus/256 Taps

Quad Digital Controlled Potentiometers

(XDCP™)

The X9258 integrates 4 digitally controlled potentiometers

(XDCP™) on a monolithic CMOS integrated circuit.

The digitally 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

(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 though 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.

Features

• Four potentiometers in one package

• 256 resistor taps/potentiometer................. 0.4% resolution

• 2-wire serial interface

• Wiper resistance, 40Ω typical @ V+ = 5V, V- = -5V

• Four nonvolatile data registers for each potentiometer

• Nonvolatile storage of wiper position

• Standby current <5µA max (total package)

• Power supplies

-V

= 2.7V to 5.5V

- V+ = 2.7V to 5.5V

- V- = -2.7V to -5.5V

•100kΩ, 50kΩ total potentiometer resistance

• High reliability

- Endurance: 100,000 data changes per bit per register

- Register data retention . . . . . . . . . . . . . . . . . . 100 years

• 24 Ld SOIC, 24 Ld TSSOP

• Dual supply version of X9259

• Pb-free (RoHS compliant)

Block Diagram

INTERFACE

AND

CONTROL

CIRCUITRY

SCL

SDA

WIPER

COUNTER

(WCR)

RESISTOR

ARRAY

POT 1

WIPER

COUNTER

(WCR)

DATA

RESISTOR

ARRAY

RESISTOR

ARRAY

WIPER

COUNTER

(WCR)

WIPER

COUNTER

(WCR)

POT 3

POT 2

POT 0

V+

V-

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

1-888-INTERSIL or 1-888-468-3774

Intersil (and design) and XDCP are trademarks owned by Intersil Corporation or one of its subsidiaries.

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

Data Sheet FN8168.6December 15, 2011

FN8168.6

December 15, 2011

Ordering Information

PART NUMBER

(Note 2)

PART

MARKING

LIMITS

(V)

POTENTIOMETER

ORGANIZATION

(kΩ)

TEMPERATURE

RANGE

(°C)

PACKAGE

(Pb-free)

PKG.

DWG. #

X9258US24Z (Note 1) X9258US Z 5 ±10 50 0 to +70 24 Ld SOIC (300 mil) M24.3

X9258US24IZ (Note 1) X9258US ZI -40 to +85 24 Ld SOIC (300 mil) M24.3

X9258UV24IZ X9258UV ZI -40 to +85 24 Ld TSSOP (4.4mm) MDP0044

X9258TS24Z X9258TS Z 100 0 to +70 24 Ld SOIC (300 mil) M24.3

X9258TS24IZ (Note 1) X9258TS ZI -40 to +85 24 Ld SOIC (300 mil) M24.3

X9258US24Z-2.7 (Note 1) X9258US ZF 2.7 to 5.5 50 0 to +70 24 Ld SOIC (300 mil) M24.3

X9258US24IZ-2.7 (Note 1) X9258US ZG -40 to +85 24 Ld SOIC (300 mil) M24.3

X9258UV24IZ-2.7 X9258UV ZG -40 to +85 24 Ld TSSOP (4.4mm) MDP0044

X9258TS24Z-2.7 (Note 1) X9258TS ZF 100 0 to +70 24 Ld SOIC (300 mil) M24.3

X9258TS24IZ-2.7 (Note 1) X9258TS ZG -40 to +85 24 Ld SOIC (300 mil) M24.3

X9258TV24IZ-2.7 X9258TV ZG -40 to +85 24 Ld TSSOP (4.4mm) MDP0044

X9258TV24Z-2.7 X9258TV ZF 0 to +70 24 Ld TSSOP (4.4mm) MDP0044

NOTES:

1. Add “T*” suffix for tape and reel. Please refer to TB347

for details on reel specifications.

2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte

tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil

Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

3. For Moisture Sensitivity Level (MSL), please see device information page for X9258

. For more information on MSL please see tech brief TB363.

X9258

FN8168.6

December 15, 2011

Pinout

X9258

(24 LD SOIC, TSSOP)

TOP VIEW

Pin Descriptions

Host Interface Pins

SERIAL CLOCK (SCL)

The SCL input is used to clock data into and out of the X9258.

SERIAL DATA (SDA)

SDA is a bidirectional pin used to transfer data into and out of

the device. It is an open drain output and may be wire-ORed

with any number of open drain or open collector outputs. An

open drain output requires the use of a pull-up resistor. For

selecting typical values, refer to “Guidelines for Calculating

Typical Values of Bus Pull-Up Resistors” on page 10.

DEVICE ADDRESS (A

- A

)

The Address inputs are used to set the least significant 4 bits

of the 8-bit slave address. A match in the slave address

serial data stream must be made with the address input in

order to initiate communication with the X9258. A maximum

of 16 devices may occupy the 2-wire serial bus.

Potentiometer Pins

- V

), V

- V

)

The V

and V

inputs are equivalent to the terminal

connections on either end of a mechanical potentiometer.

- V

)

The wiper outputs are equivalent to the wiper output of a

mechanical potentiometer.

Hardware Write Protect Input (WP)

The WP pin when low prevents nonvolatile writes to the Data

Registers.

Analog Supplies V+, V-

The Analog Supplies V+, V- are the supply voltages for the

DCP analog section.

Pin Names

Principles Of Operation

The X9258 is a highly integrated microcircuit incorporating

four resistor arrays and their associated registers and

counters and the serial interface logic providing direct

communication between the host and the DCP

potentiometers.

Serial Interface (2-Wire)

The X9258 supports a bidirectional bus oriented protocol.

The protocol defines any device that sends data onto the

bus as a transmitter and the receiving device as the receiver.

The device controlling the transfer is a master and the

device being controlled is the slave. The master will always

initiate data transfers and provide the clock for both transmit

and receive operations. Therefore, the X9258 will be

considered a slave device in all applications.

V+

SCL

V–

X9258

SDA

SYMBOL DESCRIPTION

SCL Serial Clock

SDA Serial Data

A0 thru A3 Device Address

thru V

Potentiometer Pins

(terminal equivalent)

thru V

Potentiometers Pins

(wiper equivalent)

Hardware Write Protection

V+, V- Analog Supplies

System Supply Voltage

System Ground

NC No Connection (Allowed)

X9258

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P19

X9258TS24IZ-2.7

Mfr. #:

Buy X9258TS24IZ-2.7

Manufacturer:

Renesas / Intersil

Description:

Digital Potentiometer ICs X9258TS24IZ-2 7 IIC 100K QD 256 TAPS

Lifecycle:

New from this manufacturer.

Delivery:

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X9258TS24IZ-2.7

X9258TS24IZ-2.7

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