The recommended operating voltage range for NS16C2552TVSX/NOPB is 2.7V to 5.5V.
The reset pin (RST) should be tied to VCC through a pull-up resistor (typically 1kΩ to 10kΩ) to ensure proper reset during power-up and power-down. Additionally, a capacitor (typically 0.1μF to 1μF) can be added in parallel to the pull-up resistor to filter out noise.
The maximum clock frequency supported by NS16C2552TVSX/NOPB is 24 MHz.
The UART baud rate can be configured by programming the UART clock divisor registers (UCR1 and UCR2). The divisor values can be calculated using the formula: Baud Rate = (Clock Frequency / (16 × Divisor Value)).
The X2 input pin is used as a clock input for the internal oscillator. It should be connected to a crystal oscillator or an external clock source.
NS16C2552TVSX/NOPB datasheet
by Texas Instruments
