Datasheet > DS3930

DS3930

更新时间： 2024-11-06 22:40:39

品牌	Logo	应用领域
达拉斯 - DALLAS		电位器
页数	文件大小	规格书
12页	617K
描述
Hex Nonvolatile Potentiometer with I/O and Memory

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数据手册

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DS3930 数据手册

Rev 0; 4/03

Hex Nonvolatile Potentiometer with

I/O and Memory

General Description

Features

The DS3930 contains six 256-position nonvolatile (NV)

potentiometers, 64 bytes of NV user EEPROM memory,

and four programmable NV I/O pins. The six poten-

tiometers all share a common low side. The potentiome-

ters are separated into two groups of three 50kΩ

potentiometers in parallel. Each group of three poten-

tiometers shares a common high side and forms an

equivalent resistance of 16.6kΩ (three 50kΩ poten-

tiometers in parallel).

♦ Six 256-Position NV Potentiometers

♦ Four General-Purpose NV I/O Pins

♦ 64 Bytes of User EEPROM Memory

♦ 0 to 5.5V on Any Potentiometer Terminal,

Independent of V

♦ All Six Potentiometers Share a Common Low Side

♦ Potentiometers Separated into Two Groups of

Three Potentiometers, Each Sharing a Common

High Side

Applications

♦ 2-Wire Serial Interface

RF Transceivers

♦ Wide Supply Range (2.7V to 5.5V)

Voltage References

♦ Up to Eight DS3930s Can Share the Same

Power Supply Calibration

Mobile Phones and PDAs

Fiber Optic Transceiver Modules

Portable Electronics

Radio Tuners

2-Wire Bus

Ordering Information

PART

DS3930E

PIN-PACKAGE

20 TSSOP

Small, Low-Cost Replacement for Mechanical

Potentiometers

Pin Configuration

Typical Operating Circuit

TOP VIEW

20 HI

0-2

19 W0

4.7kΩ

WIPER

TERMINALS

SDA

SCL

SDA

SCL

DS3930

2-WIRE

INTERFACE

16 LO

0-5

I/O

15 HI

3-5

DS3930

I/O

3-5

DIGITAL

NONVOLATILE I/O

I/O

WIPER

TERMINALS

GND 10

11 I/O

DECOUPLING CAP

DIGITAL

NONVOLATILE I/O

0.1µF

GND

I/O

TSSOP

_____________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...12

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