The DS1624 is a digital thermometer and memory chip that measures temperatures from -55°C to +125°C. It provides 13-bit temperature readings and has 256 bytes of E2 memory for storing information. The temperature data can be read and written via a 2-wire serial interface. It is suitable for applications such as temperature-compensated crystal oscillators.
The DS1624 integrates a digital temperature sensor and a 256‑byte non‑volatile E2 memory. Temperature is measured from –55 °C to +125 °C with a resolution of 0.03125 °C and accessed via a standard 2‑wire (I²C‑compatible) serial bus.
The device operates from a 2.7 V to 5.5 V supply, supports up to 50,000 write cycles to its EEPROM, and provides configurable address pins (A0‑A2) for up to eight devices on the same bus. Detailed command sets allow reading temperature, accessing memory, and configuring operation modes.
| Temperature range | -55 °C to +125 °C |
|---|---|
| Resolution | 0.03125 °C per LSB |
| EEPROM size | 256 bytes |
| Supply voltage | 2.7 V to 5.5 V |
| Maximum write cycles | 50,000 writes (25,000 erase/write cycles) |
| Address pins | A0, A1, A2 |
The device provides a resolution of 0.03125 °C per LSB.
It contains 256 bytes of non‑volatile E2 memory.
The DS1624 operates from 2.7 V to 5.5 V.
The EEPROM can handle up to 50,000 write cycles (25,000 erase/write cycles).