The recommended layout and routing for the DS2155LN+ 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 the VCC and GND pins.
To ensure the DS2155LN+ is properly powered, make sure to connect the VCC pin to a stable 3.3V or 5V power supply, and the GND pin to a solid ground plane. Also, ensure that the power supply noise is minimized and the voltage regulator is capable of providing a clean and stable output.
The recommended crystal oscillator configuration for the DS2155LN+ involves using a 16.384MHz crystal oscillator with a load capacitance of 18pF and a series resistance of 1kΩ. The crystal oscillator should be connected between the XTAL1 and XTAL2 pins.
To configure the DS2155LN+ for low-power operation, set the PD pin high to enable the power-down mode. In this mode, the device consumes minimal power and the oscillator is disabled. Additionally, consider using a low-power crystal oscillator and minimizing the clock frequency to further reduce power consumption.
The DS2155LN+ has a maximum junction temperature of 150°C. To ensure reliable operation, ensure that the device is operated within the recommended temperature range of -40°C to 85°C. Also, consider using a heat sink or thermal pad to dissipate heat, especially in high-temperature environments.
DS2155LN+ datasheet
by Maxim Integrated Products
