Datasheet > CAT5221

CAT5221

更新时间： 2024-11-19 11:54:19

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
16页	226K
描述
Dual Digitally Programmable Potentiometer (DPPâ¢) with 64 Taps and I2C Interface

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CAT5221 数据手册

CAT5221

Dual Digitally Programmable Potentiometer (DPP™) with

64 Taps and I²C Interface

FEATURES

DESCRIPTION

Two linear-taper digitally programmable

The CAT5221 is two Digitally Programmable

Potentiometers (DPPs™) integrated with control logic

and 16 bytes of NVRAM memory. Each DPP consists

of a series of 63 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

6-bit control register (WCR) independently controls

the wiper tap switches for each DPP. Associated with

each wiper control register are four 6-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 I²C serial

bus. On power-up, the contents of the first data

automatically loaded into its respective wiper control

potentiometers

64 resistor taps per potentiometer

End to end resistance 2.5 kΩ, 10 kΩ, 50 kΩ or

100 kΩ

Potentiometer control and memory access via

I²C interface

Low wiper resistance, typically 80 Ω

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

20-lead SOIC and TSSOP packages

Industrial temperature range

The CAT5221 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.

For Ordering Information details, see page 15.

PIN CONFIGURATION

FUNCTIONAL DIAGRAM

SOIC 20 Lead (W)

TSSOP 20 Lead (Y)

R_W0

R_L0

20 V_CC

19 NC

18 NC

17 NC

16 A1

15 A3

14 SCL

13 NC

12 NC

11 NC

SCL

SDA

WIPER

CONTROL

REGISTERS

I C

INTERFACE

R_H0

CAT

5221

R_W1

R_L1

NONVOLATILE

DATA

REGISTERS

CONTROL

LOGIC

RH1

SDA

GND 10

Characteristics subject to change without notice

Doc. No. MD-2113 Rev. M

12 3 4 5 6 7...16

中文翻译

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与CAT5221相关器件

型号	品牌	获取价格	描述	数据表
CAT5221_08	CATALYST	获取价格	Dual Digitally Programmable Potentiometer (DP
CAT5221_13	ONSEMI	获取价格	Dual Digital Potentiometer (POT)
CAT5221J-00	CATALYST	获取价格	Digital Potentiometer, 2 Func, 100000ohm, 2-wire Serial Control Interface, 64 Positions, P
CAT5221J-25	ONSEMI	获取价格	IC DUAL 2.5K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO20,
CAT5221J-25-TE13	CATALYST	获取价格	IC DUAL 2.5K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO20,
CAT5221J-50	CATALYST	获取价格	Digital Potentiometer, 2 Func, 50000ohm, 2-wire Serial Control Interface, 64 Positions, PD
CAT5221JI-00	ONSEMI	获取价格	IC DUAL 100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO20,
CAT5221JI-00TE13	CATALYST	获取价格	Dual Digitally Programmable Potentiometers (DPP) with 64 Taps and 2-wire Interface
CAT5221JI-00-TE13	CATALYST	获取价格	Digital Potentiometer, 2 Func, 100000ohm, 2-wire Serial Control Interface, 64 Positions, P
CAT5221JI-00-TE13	ONSEMI	获取价格	DUAL 100K DIGITAL POTENTIOMETER, 2-WIRE SERIAL CONTROL INTERFACE, 64 POSITIONS, PDSO20, 0.

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