DS1624:Digital Thermometer and Memory

The DS1624 consists of two separate functional units: a 256-byte nonvolatile E2 memory and a direct-to-digital temperature sensor. The nonvolatile memory is made up of 256 bytes of E2 memory. This memory can be used to store any type of information the user wishes. These memory locations are accessed through the 2-wire serial bus. The direct-to-digital temperature sensor allows the DS1624 to measure the ambient temperature and report the temperature in a 12-bit word with 0.0625°C resolution. The temperature sensor and its related registers are accessed through the 2-wire serial interface. Figure 1 in the full data sheet shows a block diagram of the DS1624.

Key Features
  • Reduces Component Count with Integrated Temperature Sensor and Nonvolatile E2 Memory
    • Measures Temperatures from -55°C to +125°C in 0.0625°C Increments
    • ±0.5°C Accuracy from 0°C to 70°C
    • 256 Bytes of E2 Memory for Storing Information Such as Frequency Compensation Coefficients
    • No External Components
  • Easy-to-Use 2-Wire Serial Interface
    • Temperature is Read as a 12-Bit Value (2-Byte Transfer)
  • Available in 8-Pin SO and DIP Packages
DS1624: Block Diagram
DS1624: Block Diagram
DataSheet
titleDownload file
DS1624 Data SheetDS1624.pdf
Parametrics
Part NumberSensor TypeFunctionsInterfaceChannelsAccuracy
(±°C)
Parasite Pwr.Temp. Resolution
(bits)
Multi DroppableOper. Temp.
(°C)
Package/PinsBudgetary
Price
See Notes
DS1624LocalMemory2-Wire/I2C/SMBusOne0.5No12Yes-55 to +125PDIP(N)/8
SOIC/8
$3.86 @1k
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
DS1624No Longer AvailableDS1624+PDIP(N),;8 pin;81.9 mm²-55°C to +125°CNo
DS1624+ActivePDIP(N),;8 pin;81.9 mm²-55°C to +125°CLead Free
DS1624SNo Longer AvailableDS1624S+SOIC,;8 pin;44.1 mm²-55°C to +125°CNo
DS1624S+ActiveSOIC,;8 pin;44.1 mm²-55°C to +125°CLead Free
DS1624S+T&RActiveSOIC,;8 pin;44.1 mm²-55°C to +125°CLead Free
DS1624S/T&RNo Longer AvailableDS1624S+T&RSOIC,;8 pin;44.1 mm²-55°C to +125°CNo
DS1624.pdf DS1624
DS1624.pdf DS1624
DS1624.pdf DS1624
Understanding Multidrop Address Assignments for Thermal Sensors MAX7504
Package Thermal Resistance Values (Theta JA, Theta JC) for Temperature Sensors and 1-Wire Devices MAX31826
DS1624.pdf DS1624