The TARGETECH DS1820 digital temperature sensor manual describes features, pinout, operation, and specifications.
This manual provides a complete overview of the TARGETECH DS1820 single‑wire digital temperature sensor, including its unique one‑wire interface, multi‑drop capability, and parasite‑power operation. It explains how the device can be powered directly from the data line or via an external VDD supply, and details the unique 64‑bit laser‑ROM serial number.
The document also covers pin assignments, memory organization, command sequences for ROM and scratchpad operations, and the electrical limits and recommended operating conditions. Technical specifications such as temperature range, resolution, supply voltage, and current consumption are listed for design reference. This manual is written in Chinese.
| Temperature measurement range | -55 °C to +125 °C |
|---|---|
| Temperature resolution | 0.5 °C per step |
| Supply voltage (VDD) | 3.6 V to 5.5 V |
| Input logic low (VIL) | -0.3 V to +0.8 V |
The DS1820 can measure temperatures from –55 °C up to +125 °C.
The sensor provides temperature readings in 0.5 °C increments.
VDD should be between 3.6 V and 5.5 V for proper operation.