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DS1855E-050/T PDF预览

DS1855E-050/T

更新时间: 2024-02-09 22:01:28
品牌 Logo 应用领域
达拉斯 - DALLAS 电位器存储
页数 文件大小 规格书
20页 252K
描述
Dual Nonvolatile Digital Potentiometer and Secure Memory

DS1855E-050/T 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:TSSOP
包装说明:TSSOP, TSSOP14,.25针数:14
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.35
其他特性:NONVOLATILE MEMORY; OTHER RESISTOR VALUE IS 10000 OHM WITH 100 TAP POSITION标称带宽:1 kHz
控制接口:2-WIRE SERIAL转换器类型:DIGITAL POTENTIOMETER
JESD-30 代码:R-PDSO-G14JESD-609代码:e3
长度:5 mm湿度敏感等级:1
功能数量:2位置数:256
端子数量:14最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP14,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260电源:3/5 V
认证状态:Not Qualified电阻定律:LINEAR
最大电阻容差:20%最大电阻器端电压:3.3 V
最小电阻器端电压:-0.3 V座面最大高度:1.1 mm
子类别:Digital Potentiometers标称供电电压:3 V
表面贴装:YES标称温度系数:750 ppm/ °C
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
标称总电阻:50000 Ω宽度:4.4 mm
Base Number Matches:1

DS1855E-050/T 数据手册

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DS1855  
Dual Nonvolatile Digital Potentiometer  
and Secure Memory  
www.maxim-ic.com  
FEATURES  
C Two linear taper potentiometers  
DS1855-010 (one 10k, 100 position and  
one 10k, 256 position)  
SDA  
SCL  
A0  
1
2
3
4
5
6
14  
13  
12  
11  
Vcc  
H0  
W1  
H1  
L1  
DS1855-020 (one 10k, 100 position and  
one 20k, 256 position)  
A1  
A2  
10  
9
DS1855-050 (one 10k, 100 position and  
one 50k, 256 position)  
WP  
W0  
L0  
GND  
7
8
DS1855-100 (one 10k, 100 position and  
one 100k, 256 position)  
14-Pin TSSOP (173-mil)  
Top View  
C 256 bytes of EEPROM memory  
C Access to data and potentiometer control via  
a 2-wire interface  
C External write-protect pin to protect data and  
potentiometer settings  
C Data and potentiometer settings also can be  
write-protected through software control  
C Nonvolatile wiper storage  
A
B
C
C Operates from 3V or 5V supplies  
C Packaging: 14-pin TSSOP, 16-ball STPBGA,  
flip-chip package  
D
C Industrial operating temperature:  
-40ºC to +85ºC  
1
2
3
4
16-Ball STPBGA (4mm x 4mm)  
14-Pin Flip Chip (100-mil x 100-mil)  
(Not Shown)  
C Programming temperature: 0ºC to +85ºC  
DESCRIPTION  
The DS1855 dual nonvolatile (NV) digital potentiometer and secure memory consists of one100-position  
linear taper potentiometer, one256-position linear taper potentiometer, 256 bytes of EEPROM memory,  
and a 2-wire interface. The DS1855, which features a new software write protect, is an upgrade of the  
DS1845. The DS1855 provides an ideal method for setting bias voltages and currents in control  
applications using a minimum of circuitry. The EEPROM memory allows a user to store configuration or  
calibration data for a specific system or device as well as provide control of the potentiometer wiper  
settings. Any type of user information may reside in the first 248 bytes of this memory. The next two  
addresses of EEPROM memory are for potentiometer settings and the remaining 6 bytes of memory are  
reserved. These reserved and potentiometer registers should not be used for data storage. Access to this  
EEPROM is via an industry-standard 2-wire bus. The interface I/O pins consist of SDA and SCL. The  
wiper position of the DS1855, as well as EEPROM data, can be write-protected through hardware using  
the  
write-protect  
input  
pin  
(WP)  
or  
software  
using  
the  
2-wire  
interface.  
1 of 20  
100101  

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