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參數(shù)資料
| 型號(hào)： | DS1855E-050+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 1/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RES TEMP-CNTRL 10/50K 14TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 接片： | 100，256 |
| 電阻（歐姆）： | 10k，50k，100k |
| 電路數(shù)： | 2 |
| 溫度系數(shù)： | 標(biāo)準(zhǔn)值 750 ppm/°C |
| 存儲(chǔ)器類型： | 非易失 |
| 接口： | I²C（設(shè)備位址） |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 14-TSSOP |
| 包裝： | 帶卷 (TR) |
1 of 21
19-6586; Rev 2; 1/13
FEATURES
Two Linear Taper Potentiometers
DS1855-010 (One 10k, 100 Position
and One 10k, 256 Position)
DS1855-020 (One 10k, 100 Position
and One 20k, 256 Position)
DS1855-050 (One 10k, 100 Position
and One 50k, 256 Position)
DS1855-100 (One 10k, 100 Position
and One 100k, 256 Position)
256 Bytes of EEPROM Memory
Access to Data and Potentiometer Control
via a 2-Wire Interface
External Write-Protect Pin to Protect Data
and Potentiometer Settings
Data and Potentiometer Settings Also Can
Be Write Protected Through Software
Control
Nonvolatile Wiper Storage
Operates from 3V or 5V Supplies
14-Pin TSSOP, 16-Ball CSBGA, and
14-Pin Flip-Chip Packages
Industrial Operating Temperature:
-40C to +85C
PIN CONFIGURATIONS
DESCRIPTION
The DS1855 dual nonvolatile (NV) digital potentiometer and secure memory consists of one 100-position
linear taper potentiometer, one 256-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.
SDA
1
14
Vcc
SCL
2
13
H0
A0
3
12
W1
A1
4
11
H1
A2
5
10
L1
WP
6
9
W0
GND
7
8
L0
TSSOP (173 mils)
A
B
C
D
1
2
3
4
Top View
CSBGA (4mm x 4mm)
Flip Chip (100 mils x 100 mils) (Not Shown)
DS1855
Dual Nonvolatile Digital Potentiometer
and Secure Memory
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1855E-100 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual Nonvolatile Digital Potentiometer and Secure Memory |
| DS1855E-100/R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual Nonvolatile Digital Potentiometer and Secure Memory |
| DS1855E-100/T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual Nonvolatile Digital Potentiometer and Secure Memory |
| DS1855E-100/T&R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual Nonvolatile Digital Potentiometer and Secure Memory |
| DS1855E-C01/T&R | 功能描述:數(shù)字電位計(jì) IC RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel |
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