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參數資料
型號: DS1855X-010
元件分類: 數字電位計
英文描述: Dual Nonvolatile Digital Potentiometer and Secure Memory
中文描述: 雙非易失數字電位器及安全存儲器
文件頁數: 1/20頁
文件大小: 252K
代理商: DS1855X-010
1 of 20
100101
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
§ Packaging: 14-pin TSSOP, 16-ball STPBGA,
flip-chip package
§ Industrial operating temperature:
-40C to +85C
§ Programming temperature: 0C to +85C
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.
DS1855
Dual Nonvolatile Digital Potentiometer
and Secure Memory
www.maxim-ic.com
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
78
L0
14-Pin TSSOP (173-mil)
A
B
C
D
1
2
3
4
Top View
16-Ball STPBGA (4mm x 4mm)
14-Pin Flip Chip (100-mil x 100-mil)
(Not Shown)
相關PDF資料
PDF描述
DS1855X-020 Dual Nonvolatile Digital Potentiometer and Secure Memory
DS1867-10 Dual Digital Potentiometer with EEPROM
DS1867-100 Dual Digital Potentiometer with EEPROM
DS1867-50 Dual Digital Potentiometer with EEPROM
DS1868-10 Dual Digital Potentiometer Chip
相關代理商/技術參數
參數描述
DS1855X-020 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Dual Nonvolatile Digital Potentiometer and Secure Memory
DS1855X-050 制造商:Maxim Integrated Products 功能描述:DUAL NV POT & MEMORY WITH LOCKOUT - Tape and Reel
DS1855X-050#T&R 制造商:Maxim Integrated Products 功能描述:IC DUAL NV DGTL POT/MEM 14-FCP
DS1855X-050#T&R 功能描述:數字電位計 IC Dual NV w/Memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數:35 PPM / C 容差:25 % POT 數量:Dual 每 POT 分接頭:256 弧刷存儲器:Volatile 緩沖刷: 數字接口: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 安裝風格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
DS1855X-050/T&R 制造商:Maxim Integrated Products 功能描述:DUAL NV POT & MEMORY WITH LOCKOUT - Tape and Reel
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