The recommended layout and routing for the DS1878T+ involves keeping the input and output traces as short as possible, using a solid ground plane, and avoiding vias under the device. Additionally, the input and output capacitors should be placed as close to the device as possible.
To ensure the DS1878T+ is properly powered, make sure to connect the VCC pin to a stable 3.3V or 5V power supply, and decouple the power supply with a 0.1uF capacitor. Also, ensure that the power supply can provide enough current to support the device's operating current.
The maximum operating frequency of the DS1878T+ is 100 kHz. However, the device can operate at higher frequencies, but with reduced performance and accuracy.
The DS1878T+ can be programmed using a 3-wire serial interface. The device can be programmed using a microcontroller or a dedicated programming device. The programming protocol is described in the datasheet.
The accuracy of the DS1878T+ is ±1.5% over the entire operating temperature range of -40°C to +125°C. However, the accuracy can be affected by factors such as temperature, voltage, and noise.