DS18B20 Pinout – Temperature Sensor – Maxim ( PDF )

Part Number : DS18B20

Function : Programmable Resolution 1-Wire Digital Thermometer

Package : TO-92, uSOP 8pin type

Manufacturers : Maxim Integrated (formerly Dallas)




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.

DS18B20 pinout datasheet



1. Unique 1-Wire® interface requires only one port pin for communication

2. Each device has a unique 64-bit serial code stored in an onboard ROM

3. Multidrop capability simplifies distributed temperature sensing applications

4. Requires no external components

5. Can be powered from data line. Power supply range is 3.0V to 5.5V


Block Diagram

DS18B20 Datasheet block diagram

Reference Site

  1. https://www.hobbytronics.co.uk/ds18b20-arduino
  2. Maxim Official Homepage
  3. https://www.sparkfun.com/products/245

DS18B20 Pinout

DS18B20 pdf

Other data sheets within the file : DS18B20+, DS18B20+T&R, DS18B20-SL+T&R, DS18B20-SL/T&R

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TMP121-EP Datasheet – SPI-compatible Temperature Sensor

Part Number : TMP121-EP


Package : SOT23-6 (DBV) Type

Manufacturers : Burr-Brown (Texas Instruments)

Pinouts :

TMP121-EP datasheet


Description :

The TMP121 and TMP123, TMP121-EP are SPI-compatible temperature sensors available in the tiny SOT23-6 package. Requiring no external components, the TMP121 and TMP123 are capable of measuring temperatures within 2°C of accuracy over a temperature range of –40°C to 125°C. Low supply current and a supply range from 2.7 V to 5.5 V make the TMP121 and TMP123 excellent candidates for low-power applications. The TMP121 and TMP123 are ideal for extended thermal measurement in a variety of communication, computer, consumer, environmental, industrial, and instrumentation applications.


• Controlled Baseline – One Assembly/Test Site, One Fabrication Site
• Extended Temperature Performance of -40°C to 125°C
• Enhanced Diminishing Manufacturing Sources (DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree
• Digital Output: SPI-Compatible Interface
• Resolution: 12-Bit + Sign, 0.0625°C

Other data sheets within the file : TMP121AQDBVREP, TMP123-EP, V62/06608-01XE


TMP121-EP Datasheet PDF Download

TMP121-EP pdf