DS1921G

RECOMMENDED FOR NEW DESIGNS

Thermochron iButton Device

Part Models
1
1ku List Price
Starting From $28.86
Viewing:

Part Details

  • High Accuracy, Full-Featured Digital Temperature Logger Simplifies Temperature Data Collection and Dissemination of Electronic Temperature Record
    • Accuracy ±1°C from -30°C to +70°C (See the Electrical Characteristics for Accuracy Specification)
    • Digital Thermometer Measures Temperature in 0.5°C Increments
    • Built-In Real-Time Clock (RTC) and Timer Has Accuracy of ±2 Minutes per Month from 0°C to +45°C
    • Automatically Wakes Up and Measures Temperature at User-Programmable Intervals from 1 Minute to 255 Minutes
    • Logs Consecutive Temperature Measurements in 2kB of Datalog Memory
    • Records a Long-Term Temperature Histogram with 2.0°C Resolution
    • Programmable Temperature High and Temperature Low Alarm Trip Points
    • Records Up to 24 Timestamps and Durations When Temperature Leaves the Range Specified by the Trip Points
    • Individually Calibrated in a NIST-Traceable Chamber
    • Complies to Standard EN12830
    • 512 Bytes of General-Purpose Battery-Backed SRAM
  • Rugged Construction Survives Harsh Environments
    • Water Resistant Enclosure (IP56) or Waterproof if Placed Inside DS9107 iButton Capsule (Exceeds Water Resistant 3 ATM Requirements)
    • CE, FCC, and UL913 Certifications
  • Simple Serial Port Interfaces to Most Microcontrollers for Rapid Data Transfer
    • Communicates to Host with a Single Digital Signal Up to 15.4kbps at Standard Speed or Up to 125kbps in Overdrive Mode Using 1-Wire Protocol
DS1921G
Thermochron iButton Device
DS1921G: Block Diagram
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Application Note 6

Design Note 4

Technical Articles 17

Learn More
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Hardware Ecosystem

Parts Product Life Cycle Description
iButton Mounting Options 1
DS9107 RECOMMENDED FOR NEW DESIGNS iButton Capsule
Temperature Data Loggers 2
DS1921H PRODUCTION High-Resolution Thermochron iButton Devices
DS1921Z PRODUCTION High-Resolution Thermochron iButton Devices
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Evaluation Kits

eval board
DS1921K

Thermochron iButton Starter Kit

Features and Benefits

  • Starter Kit to evaluate the DS1921 Thermochron iButton temperature recording device with a Microsoft Windows-based PC
  • Easy Setup with USB Adapter
  • Free download of 1-Wire drivers and OneWireViewer Demonstration Software
  • Compatible with other Thermochron iButton devices DS1922L, DS1922T, DS1922E, DS1923 (not included)

Product Details

The DS1921K Thermochron iButton® Starter Kit provides the basic hardware for a quick evaluation of Maxim’s Thermochron iButton family that communicates using the 1-Wire® protocol. The kit uses the USB port of a Microsoft Windows®-based Personal Computer running Vista®, XP SP2 (or higher), or Microsoft Server Operating Systems Windows 2003 or 2008. The kit includes a DS1921 Thermochron iButton device and all hardware required to communicate with it. The DS1921K is also capable of evaluating any other iButton devices, including the high-capacity Thermochron devices (DS1922L, DS1922T, and DS1923), the Hygrochron device (DS1923), and the temperature-only iButton device (DS1920). Please note that the DS1921 is the only iButton device included in the kit. All other iButton devices may be purchased separately. The easy setup process includes the free download of 1-Wire drivers and the OneWireViewer demonstration software to easily communicate with iButton devices through the PC's USB port. The download site for the free 1-Wire drivers and bundled OneWireViewer can be found here.

To evaluate plastic-packaged 1-Wire devices instead of the iButton form factor, use the DS9090K instead of the DS1921K. To evaluate other iButton devices besides the Thermochron devices, see the DS9092K.

EV Kit Contents

QTY DESCRIPTION
1 DS1921G-F5# Thermochron iButton
1 DS9093F Snap-in Fob, Black
1 DS1402D-DR8 dual Blue Dot™ Receptor
1 DS9490R USB to 1-Wire adapter

 

DS1921K
Thermochron iButton Starter Kit
Thermochron iButtonスターターキット

Latest Discussions

Recently Viewed