The recommended layout and routing for the DS1721U+T&R involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the traces between the device and the crystal oscillator. Additionally, it is recommended to use a 0.1uF decoupling capacitor between VCC and GND, and to keep the device away from high-frequency noise sources.
To ensure the accuracy of the temperature measurement, it is recommended to calibrate the device using a thermocouple or other accurate temperature reference. Additionally, the device should be mounted in a way that minimizes thermal gradients and ensures good thermal contact with the surrounding environment.
The maximum allowed voltage on the VCC pin of the DS1721U+T&R is 5.5V. Exceeding this voltage can cause damage to the device.
The DS1721U+T&R can be interfaced with a microcontroller or other digital system using a 3-wire serial interface (SCLK, SDATA, and RST). The device can be configured to operate in either master or slave mode, and the interface protocol is compatible with most microcontrollers.
The typical current consumption of the DS1721U+T&R is 1.5mA, but this can vary depending on the operating mode and the frequency of the crystal oscillator.
