DS1921H-F5# by Analog Devices

High-Resolution Thermochron iButton Devices

Status: Active
Series: DS1921H
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The Thermochron® iButton® devices (DS1921H/Z) are rugged, self-sufficient systems that measure temperature and record the result in a protected memory section. The recording is done at a user-defined rate, both as a direct storage of temperature values as well as in the form of a histogram. Up to 2048 temperature values taken at equidistant intervals ranging from 1 to 255 minutes can be stored. The histogram provides 64 data bins with a resolution of 0.5°C. If the temperature leaves a user-programmable range, the DS1921H/Z will also record when this happened, for how long the temperature stayed outside the permitted range, and if the temperature was too high or too low. Additional 512 bytes of general-purpose battery-backed SRAM allow storing information pertaining to the object to which the DS1921H/Z is associated. Data is transferred serially via the 1-Wire® protocol, which requires only a single data lead and a ground return. Every DS1921H/Z is factory-lasered with a guaranteed unique electrically readable 64-bit registration number that allows for absolute traceability. The durable stainless steel package is highly resistant to environmental hazards such as dirt, moisture, and shock. Accessories permit the DS1921H/Z to be mounted on almost any object, including containers, pallets, and bags.

Prices starting from US$31.60


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$33.49
62
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Logo for element14 element14 US$33.78
62
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Features

Digital thermometer measures temperature 1/8°C increments with ±1°C accuracy
Built-in real-time clock (RTC) and timer has accuracy of ±2 minutes per month from 0°C to 45°C
Water resistant or waterproof if placed inside DS9107 iButton capsule (Exceeds Water Resistant 3 ATM requirements)
Automatically wakes up and measures temperature at user-programmable intervals from 1 to 255 minutes
Logs consecutive temperature measurements in 2KB of datalog memory
Records a long-term temperature histogram with 1/2°C resolution
Programmable temperature-high and temperature-low alarm trip points
Records up to 24 time stamps and durations when temperature leaves the range specified by the trip points
512 bytes of general-purpose battery-backed SRAM
Communicates to host with a single digital signal at 15.4kbits or 125kbits per second using 1-Wire protocol
Fixed range: H: +15°C to +46°C; Z: -5°C to +26°C
Digital identification and information by momentary contact
Unique, factory-lasered and tested 64-bit registration number (8-bit family code + 48-bit serial number + 8-bit CRC tester) assures absolute traceability because no two parts are alike
Multidrop controller for 1-Wire net
Chip-based data carrier compactly stores information
Data can be accessed while affixed to object
Button shape is self-aligning with cup-shaped probes
Durable stainless steel case engraved with registration number withstands harsh environments
Easily affixed with self-stick adhesive backing, latched by its flange, or locked with a ring pressed onto its rim
Presence detector acknowledges when reader first applies voltage

Specifications

Interface 1-Wire
Technology iButton
End Equipment Asset Management
Usage Multi Use
Memory Type SRAM
Memory Size 4K bits
Data Logger Type Temperature
Temp. Readings 2048
Oper. Temp. (°C) +15 to +46
BudgetaryPrice (See Notes) 24.48


DS1921H-F5# Semiconductors - ICs by Analog Devices

THERMOCHRON IBUTTON SRAM 4KBIT

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Memory Size 4Kbit
Memory Type SRAM
Product Range -
RoHS Phthalates Compliant To Be Advised
MSL -
SVHC 1 2-dimethoxyethane ethylene glycol dimethyl ether (EGDME) (15-Jan-2018)

Alternative Descriptions

THERMOCHRON IBUTTON, SRAM, 4KBIT | Farnell
Thermochron Ibutton, Sram, 4Kbit | Newark Electronics

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS1921H-F5# ?

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Is the DS1921H-F5# RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS1921H-F5# have stock available?

Authorised distributors including Farnell, Newark Electronics and element14 have stock available or on a lead time for DS1921H-F5# .

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