DS18B20U+T&R
Analog and Digital Output
Technical Specifications
| Type | Description |
|---|---|
| Working Voltage V | 4.25 V |
| Interface | Single bus |
| Detection Temperature Range | -55°C ~ +125°C |
| Standby Current | 1uA |
| Temperature Conversion Time | 750ms |
| Type | Description |
|---|---|
| Temperature Resolution | 12bit |
| Operating Temp | - |
| Tolerance | 0.5 % |
| Features | Temperature threshold monitoring;Configurable temperature output;On-chip non-volatile parameter storage |
| Package / Case | MSOP-8 |
Product Introduction
The DS18B20 digital thermometer provides 9- bit to 12- bit Celsius temperature measurements and has an alarm function with nonvolatile user- programmable upper and lower trigger points. The DS18B20 communicates over a 1- Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. In addition, the DS18B20 can derive power directly from the data line ("parasite power"), eliminating the need for an external power supply.
Each DS18B20 has a unique 64- bit serial code, which allows multiple DS18B20s to function on the same 1- Wire bus. Thus, it is simple to use one microprocessor to control many DS18B20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.
Features
- Unique 1- Wire Interface Requires Only One Port Pin for Communication
- Reduce Component Count with Integrated Temperature Sensor and EEPROM
- Measures Temperatures from -55℃ to +125℃ (-67°F to +257°F)
- ±0.5℃ Accuracy from -10℃ to +85℃
- Programmable Resolution from 9 Bits to 12 Bits
- No External Components Required
- Parasitic Power Mode Requires Only 2 Pins for Operation (DQ and GND)
- Simplifies Distributed Temperature- Sensing Applications with Multidrop Capability
- Each Device Has a Unique 64- Bit Serial Code Stored in On- Board ROM
- Flexible User- Definable Nonvolatile (NV) Alarm Settings with Alarm Search Command
- Identifies Devices with Temperatures Outside Programed Limits
- Available in 8- Pin SO (150 mils), 8- Pin sSOP, and 3- Pin TO- 92 Packages
Applications
- - Thermostatic Controls - Industrial Systems - Consumer Products - Thermometers - Thermally Sensitive Systems
Datasheet
Alternative Parts
Common DS18B20U+T&R alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS |
| ECCN | EAR99 |
| CNHTS | 9025191010 |
| USHTS | 9025194000 |
| TARIC | 9025190010 |
| Type | Details |
|---|---|
| CAHTS | 9025190011 |
| BRHTS | 90251910 |
| INHTS | 90251910 |
| MXHTS | 9025.19.01 |
Sourcing Information
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