Dual Nonvolatile Digital Potentiometer and Secure Memory
Description
DS1855 Dual Nonvolatile Digital Potentiometer
and Secure Memory
FEATURES
Two Linear Taper Potentiometers
− DS1855-010 (One 10kΩ, 100 Position
and One 10kΩ, 256 Position) − DS1855-020 (One 10kΩ, 100 Position
and One 20kΩ, 256 Position) − DS1855-050 (One 10kΩ, 100 Position
and One 50kΩ, 256 Position) − DS1855-100 (One 10kΩ, 100 Position
and One 100kΩ, 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: -40ºC to +85ºC
PIN CONFIGURATIONS
SDA SCL
A0 A1 A2 WP GND
1 2 3 4 5 6 7
14 Vcc 13 H0 12 W1 11 H1 10 L1 9 W0 8 L0
TSSOP (173 mils)
Top View
A B C D
1234
CSBGA (4mm x 4mm...
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