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DS1825U-TR

Description
EEPROM 20Kb 1-Wire EEPROM
CategoryThe sensor   
File Size284KB,21 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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DS1825U-TR Overview

EEPROM 20Kb 1-Wire EEPROM

DS1825U-TR Parametric

Parameter NameAttribute value
Product CategoryBoard Mount Temperature Sensors
ManufacturerMaxim
RoHSDetails
Output TypeDigital
ConfigurationLocal
Accuracy+/- 2 C
Maximum Operating Temperature+ 125 C
Minimum Operating Temperature- 55 C
Interface Type1-Wire
Resolution12 bit
Supply Voltage - Max3.7 VDC
Supply Voltage - Min3 VDC
ShutdownNo Shutdown
Temperature ThresholdProgrammable
Mounting StyleSMD/SMT
Package / CaseUSOP-8
ProductSensor with Alarm
PackagingCut Tape
PackagingMouseReel
PackagingReel
Operating Supply Current1.5 mA
Factory Pack Quantity3000
DS1825
Programmable Resolution 1-Wire
Digital Thermometer With 4-Bit ID
www.maxim-ic.com
FEATURES
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Unique 1-Wire Interface Requires Only One
Port Pin for Communication
Each Device has a Unique 64-Bit Serial Code
Stored in an On-Board ROM
Multidrop Capability Simplifies Distributed
Temperature-Sensing Applications
4 Pin-Programmable Bits to Uniquely Identify
Up to 16 Sensor Locations on a Bus
Requires No External Components
Can be Powered from Data Line. Power Supply
Range: 3.0V to 3.7V
Measures Temperatures from -55°C to +125°C
(-67°F to +257°F)
±0.5°C
Accuracy from -10°C to +85°C
Thermometer Resolution is User-Selectable
from 9 to 12 Bits
Converts Temperature to 12-Bit Digital Word in
750ms (max)
User-Definable (NV) Alarm Settings
Alarm Search Command Identifies and
Addresses Devices Whose Temperature is
Outside of Programmed Limits (Temperature
Alarm Condition)
Available in 8-Pin
mSOP
Package
Software Compatible with the DS1822
Ò
PIN ASSIGNMENT
V
DD
DQ
N.C.
GND
1
8
AD3
AD2
AD1
AD0
2
7
DS1825
3
6
8-pin
mSOP
(DS1825U)
5
4
µSOP
(DS1825U)
PIN DESCRIPTION
GND
DQ
N.C.
V
DD
AD0 to AD3
- Ground
- Data In/Out
- No Connect
- Power Supply Voltage
- Address Pins
APPLICATIONS
1-Wire is a registered trademark of Dallas Semiconductor.
Thermostatic Controls
Industrial Systems
Consumer Products
Thermometers
Thermally-Sensitive Systems
DESCRIPTION
The DS1825 digital thermometer provides 9 to 12-bit centigrade temperature measurements and has an alarm
function with NV user-programmable upper and lower trigger points. The DS1825 communicates over a 1-Wire bus
that by definition requires only one data line (and ground) for communication with a central microprocessor. It has
an operating temperature range of -55°C to +125°C and is accurate to
±0.5°C
over the range of -10°C to +85°C. In
addition, the DS1825 can derive power directly from the data line (“parasite power”), eliminating the need for an
external power supply.
ORDERING INFORMATION
ORDERING NUMBER
PACKAGE MARKING
DESCRIPTION
DS1825U
1825
8-pin µSOP
DS1825U/T&R
1825
8-pin µSOP Tape-and-Reel
DS1825U+
1825 (See Note 1)
8-pin
mSOP,
Lead Free
DS1825U+T&R
1825 (See Note 1)
8-pin µSOP Tape-and-Reel, Lead Free
Note 1: Additionally, a "+" symbol will be marked on the package.
1 of 21
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