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DS1846E-010/T&R Datasheet

  • DS1846E-010/T&R

  • NV Tri-Potentiometer, Memory, and MicroMonitor

  • 18頁

  • MAXIM   MAXIM

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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
摟
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: 0潞C to +70潞C
Industrial operating temperature:
-40潞C to +85潞C
摟
摟
摟
摟
摟
摟
摟
摟
摟
V
CC
IN
PBRST
RST
RST
H0
W0
H1
W2
H2
20-Pin TSSOP
PIN DESCRIPTION
V
CC
GND
SDA
鈥?Power-Supply Input
鈥?Ground
鈥?2-Wire Serial Data
Input/Output
SCL
鈥?2-Wire Serial Clock Input
WP
鈥?Write-Protect Input
A0
鈥?Address Input
H0, H1, H2 鈥?High End of Potentiometer
L0, L1, L2
鈥?Low End of Potentiometer
W0, W1, W2 鈥?Wiper Terminal of
Potentiometer
PBRST
鈥?Pushbutton Reset Input
NMI
鈥?Nonmaskable Interrupt
Output
IN
鈥?NMI Voltage Input
RST
ORDERING INFORMATION
DS1846E-010
DS1846E-010/T&R (Tape-and-Reel Version)
RST
鈥?Active-Low Reset Output
鈥?Active-High Reset Output
OVERVIEW
The DS1846 NV tri-potentiometer, memory, and MicroMonitor鈩?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

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