The DS1624 is a digital thermometer and memory device that provides 13-bit temperature readings and 256 bytes of E2 memory for storing frequency compensation coefficients.
The DS1624 is an integrated circuit that combines a direct-to-digital temperature sensor with 256 bytes of nonvolatile E²PROM memory. The device measures ambient temperatures from -55°C to +125°C in 0.03125°C increments and converts the reading into a 13-bit digital value within one second.
The chip communicates via a bi-directional two-wire serial bus (open drain I/O lines) compatible with both standard (100 KHz) and fast (400 KHz) modes. It operates as a slave device, requiring a master to generate clock pulses and START/STOP conditions for data transfer.
| Temperature Range | -55°C to +125°C |
|---|---|
| Fahrenheit Range | -67°F to +257°F |
| Temperature Resolution (Celsius) | 0.03125°C increments |
| Temperature Resolution (Fahrenheit) | 0.05625°F increments |
| Memory Size | 256 bytes |
| Conversion Time (Max) | 1 second |
| Interface Type | 2-wire serial interface |
| Supply Voltage Range | +3V to +5V |
The device measures temperatures in increments of 0.03125°C.
The chip includes 256 bytes of nonvolatile E²PROM memory for storing user information.
The DS1624 converts the temperature to a digital word in a maximum of one second.