BENEFITS AND FEATURES



Simply Adds Temperature Monitoring and

Control to Any System

o Measures Temperatures From -55°C to

+125°C in 0.5°C Increments; Fahrenheit

Equivalent is -67°F to +257°F in 0.9°F

Increments

o Temperature is Read as a 9-Bit Value

o Converts Temperature to Digital Word in

750ms (max)

o Thermostatic Settings are User-Definable

and Nonvolatile



Can Be Used in a Wide Variety of

Applications

o Supply Voltage Range Covers From 2.7V

to 5.5V

o Data is Read From/Written Via a 3-Wire



Saves Space

o Requires No External Components

o 8-Pin DIP or SOIC (208-mil) Packages

APPLICATIONS

⋅

Thermostatic Controls

⋅

Industrial Systems

⋅

Consumer Products

PIN ASSIGNMENT

PIN DESCRIPTION

DQ

- 3-Wire Input/Output

Stand-alone Convert Input

RST

- 3-Wire Reset Input

GND

- Ground

- High Temperature Trigger

- Low Temperature Trigger

- High/Low Combination Trigger

- Power Supply Voltage (3V - 5V)

DESCRIPTION

The DS1620 Digital Thermometer and Thermostat provides 9–bit temperature readings which indicate

the temperature of the device. With three thermal alarm outputs, the DS1620 can also act as a thermostat.

below that of TL.

DS1620

Digital Thermometer and

Thermostat

6

3

1

2

4

8

7

5

DQ

CLK/CONV

RST

GND

DS1620S 8-Pin SOIC (208-mil)

6

3

1

2

4

8

7

5

DQ

CLK/CONV

RST

GND

DS1620 8-Pin DIP (300-mil)

1 of 12

19-7539; Rev 3; 3/15