Datasheet > CAT5261

CAT5261

更新时间： 2024-01-11 17:27:38

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
15页	225K
描述
Dual Digitally Programmable Potentiometers (DPP™) with 256 Taps and SPI Interface

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CAT5261 数据手册

CAT5261

Dual Digitally Programmable Potentiometers

(DPP™) with 256 Taps and SPI Interface

FEATURES

DESCRIPTION

Two linear-taper digitally programmable

The CAT5261 is two Digitally Programmable

Potentiometers (DPPs™) integrated with control logic

and 8 bytes of NVRAM memory. Each DPP consists of

a series of resistive elements connected between two

externally accessible end points. The tap points

between each resistive element are connected to the

wiper outputs with CMOS switches. A separate 8-bit

control register (WCR) independently controls the wiper

tap switches for each DPP. Associated with each wiper

control register are four 8-bit non-volatile memory data

registers (DR) used for storing up to four wiper settings.

Writing to the wiper control register or any of the non-

volatile data registers is via a SPI serial bus. On power-

up, the contents of the first data register (DR0) for each

of the potentiometers is automatically loaded into its

respective wiper control register.

potentiometers

256 resistor taps per potentiometer

End to end resistance 50 kΩ or 100 kΩ

Potentiometer control and memory access via

SPI interface

Low wiper resistance, typically 100

Nonvolatile memory storage for up to four

wiper settings for each potentiometer

Automatic recall of saved wiper settings at

power up

2.5 to 6.0 volt operation

Standby current less than 1µA

1,000,000 nonvolatile WRITE cycles

100 year nonvolatile memory data retention

24-lead SOIC and 24-lead TSSOP

Industrial temperature range

The CAT5261 can be used as a potentiometer or as a

two terminal, variable resistor. It is intended for circuit

level or system level adjustments in a wide variety of

applications. It is available in the -40°C to 85°C

industrial operating temperature range and offered in

a 24-lead SOIC and TSSOP package.

Industrial temperature range

For Ordering Information details, see page 14.

FUNCTIONAL DIAGRAM

PIN CONFIGURATION

SOIC/TSSOP (W, Y)

¯¯¯¯¯

SCK

HOLD

WIPER

CONTROL

REGISTERS

SPI BUS

INTERFACE

23 SCK

22 NC

21 NC

20 NC

19 NC

18 GND

17 R_W1

V_CC

R_L0

CAT

5261

NONVOLATILE

DATA

REGISTERS

CONTROL

LOGIC

HOLD

R_H0

16 R_H1

R_W010

15 R_L1

14 A1

13 SI

¯¯¯

Characteristics subject to change without notice

Doc. No. MD-2122 Rev. G

12 3 4 5 6 7...15

中文翻译

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与CAT5261相关器件

型号	品牌	获取价格	描述	数据表
CAT5261_08	CATALYST	获取价格	Dual Digitally Programmable Potentiometers (D
CAT5261JI-00TE13	CATALYST	获取价格	Dual Digitally Programmable Potentiometer
CAT5261JI-00-TE13	CATALYST	获取价格	Digital Potentiometer, 2 Func, 100000ohm, 3-wire Serial Control Interface, 256 Positions,
CAT5261JI-50TE13	CATALYST	获取价格	Dual Digitally Programmable Potentiometer
CAT5261JI-50-TE13	ONSEMI	获取价格	DUAL 50K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO24, 0.
CAT5261JI-50-TE13	CATALYST	获取价格	Digital Potentiometer, 2 Func, 50000ohm, 3-wire Serial Control Interface, 256 Positions, P
CAT5261UI-00TE13	CATALYST	获取价格	Dual Digitally Programmable Potentiometer
CAT5261UI-00-TE13	CATALYST	获取价格	Digital Potentiometer, 2 Func, 100000ohm, 3-wire Serial Control Interface, 256 Positions,
CAT5261UI-00-TE13	ONSEMI	获取价格	IC DUAL 100K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO24
CAT5261UI-50TE13	CATALYST	获取价格	Dual Digitally Programmable Potentiometer

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