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DS1621C-A7-W

CategoryThe sensor   
File Size436KB,16 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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DS1621C-A7-W Parametric

Parameter NameAttribute value
Product CategoryBoard Mount Temperature Sensors
ManufacturerMaxim
Output TypeDigital
ConfigurationLocal
Accuracy+/- 2 C
Maximum Operating Temperature+ 125 C
Minimum Operating Temperature- 55 C
Interface Type2-Wire, I2C, SMBus
Resolution12 bit
Supply Voltage - Max5.5 VDC
Supply Voltage - Min2.7 VDC
ShutdownNo Shutdown
Temperature ThresholdProgrammable
ProductThermometer Thermostat
Operating Supply Current1 nA
DS1621
Digital Thermometer and
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 (2-
Byte Transfer)
o
Converts Temperature to Digital Word in
Less than 1s
o
Thermostatic Settings are User Definable
And Nonvolatile
Can Be Used in a Wide Variety of
Applications
o
Power Supply Range (2.7V to 5.5V)
o
Data is Read From/Written Via a 2-Wire
Serial Interface (Open Drain I/O Lines)
Saves Space
o
Temperature Measurements Require No
External Components
o
8-pin DIP or SO package (208-mil)
Packages
Thermostatic Controls
Industrial Systems
Consumer Products
Thermometers
PIN ASSIGNMENT
SDA
SCL
T
OUT
GND
1
2
3
4
8
7
6
5
V
DD
A
0
A
1
A
2
DS1621S 8-PIN SO (150mil)
DS1621V 8-PIN SO (208mil)
SDA
SCL
T
OUT
GND
1
2
3
4
8
7
6
5
V
DD
A
0
A
1
A
2
DS1621 8-PIN DIP (300mil)
APPLICATIONS
SDA
SCL
GND
T
OUT
A0
A1
A2
V
DD
PIN DESCRIPTION
- 2-Wire Serial Data Input/Output
- 2-Wire Serial Clock
- Ground
- Thermostat Output Signal
- Chip Address Input
- Chip Address Input
- Chip Address Input
- Power Supply Voltage
The DS1621 Digital Thermometer and Thermostat provides 9-bit temperature readings, which indicate
the temperature of the device. The thermal alarm output, T
OUT
,
is active when the temperature of the
device exceeds a user-defined temperature TH. The output remains active until the temperature drops
below user defined temperature TL, allowing for any hysteresis necessary.
User-defined temperature settings are stored in nonvolatile memory so parts may be programmed prior to
insertion in a system. Temperature settings and temperature readings are all communicated to/from the
DS1621 over a simple 2-wire serial interface.
1 of 16
19-7540; Rev 4; 3/15
DESCRIPTION

DS1621C-A7-W Related Products

DS1621C-A7-W DS1621C
Description Board Mount Temperature Sensors
Product Category Board Mount Temperature Sensors Board Mount Temperature Sensors
Manufacturer Maxim Maxim
Output Type Digital Digital
Configuration Local Local
Accuracy +/- 2 C +/- 2 C
Maximum Operating Temperature + 125 C + 125 C
Minimum Operating Temperature - 55 C - 55 C
Interface Type 2-Wire, I2C, SMBus 2-Wire, I2C, SMBus
Resolution 12 bit 12 bit
Supply Voltage - Max 5.5 VDC 5.5 VDC
Supply Voltage - Min 2.7 VDC 2.7 VDC
Shutdown No Shutdown No Shutdown
Temperature Threshold Programmable Programmable
Product Thermometer Thermostat Thermometer Thermostat
Operating Supply Current 1 nA 1 nA
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