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DS1846

Maxim Integrated Products
Part Number DS1846
Manufacturer Maxim Integrated Products
Description NV Tri-Potentiometer/ Memory/ and MicroMonitor
Published Jan 28, 2009
Detailed Description www.maxim-ic.com DS1846 NV Tri-Potentiometer, Memory, and MicroMonitor PIN CONFIGURATION SDA SCL A0 WP NMI L0 W1 L1 L2 ...
Datasheet PDF File DS1846 PDF File

DS1846
DS1846

Overview
www.
maxim-ic.
com DS1846 NV Tri-Potentiometer, Memory, and MicroMonitor PIN CONFIGURATION SDA SCL A0 WP NMI L0 W1 L1 L2 GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 FEATURES § Three linear taper potentiometers - Two 10kW, 100-position - One 100kW, 256-position 248 bytes of user EEPROM memory Monitors microprocessor power supply, voltage sense, and external override Access to data and potentiometer control through a 2-wire interface External write-protect (WP) pin to protect data and potentiometer settings Operates from a 5V supply Nonvolatile (NV) wiper storage Packaging: 20-pin TSSOP Programming temperature: 0ºC to +70ºC Industrial operating temperature: -40ºC to +85ºC § § § § § § § § § VCC IN PBRST RST RST H0 W0 H1 W2 H2 20-Pin TSSOP PIN DESCRIPTION VCC GND SDA – Power-Supply Input – Ground – 2-Wire Serial Data Input/Output SCL – 2-Wire Serial Clock Input WP – Write-Protect Input A0 – Address Input H0, H1, H2 – High End of Potentiometer L0, L1, L2 – Low End of Potentiometer W0, W1, W2 – Wiper Terminal of Potentiometer PBRST – Pushbutton Reset Input NMI – Nonmaskable Interrupt Output IN – NMI Voltage Input RST ORDERING INFORMATION DS1846E-010 DS1846E-010/T&R (Tape-and-Reel Version) RST – Active-Low Reset Output – Active-High Reset Output OVERVIEW The DS1846 NV tri-potentiometer, memory, and MicroMonitor™ consists of two 10kW, 100-position linear taper potentiometers, one 100kW, 256-position linear taper potentiometer; 256 bytes of EEPROM memory; and a MicroMonitor.
The device provides an ideal method for setting bias voltages and currents in control applications using a minimum of circuitry.
MicroMonitor is a trademark of Dallas Semiconductor.
1 of 18 042902 DS1846 The EEPROM memory allows a user to store configuration or calibration data for a specific system or device and provides control of the potentiometer wiper settings.
Any type of user information can reside in the first 248 bytes (00h to F7h) of this memory.
The next three bytes of m...


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