MSP430G2553CY datasheet by Texas Instruments

MSP430G2553CY Frequently Asked Questions (FAQs)

• What is the maximum clock frequency of the MSP430G2553CY?
  The maximum clock frequency of the MSP430G2553CY is 16 MHz, but it can be overclocked to 20 MHz with reduced reliability.
• How do I configure the MSP430G2553CY to use an external crystal oscillator?
  To use an external crystal oscillator, connect the crystal to the XIN and XOUT pins, and configure the UCSCTL6 register to select the external clock source. Also, ensure that the MCLK frequency is set to the desired frequency using the UCSCTL5 register.
• What is the minimum voltage required for the MSP430G2553CY to operate?
  The minimum voltage required for the MSP430G2553CY to operate is 1.8V, but it is recommended to operate at 2.2V or higher for reliable operation.
• How do I use the built-in UART module on the MSP430G2553CY?
  To use the built-in UART module, configure the UCAxCTL0 register to select the UART mode, set the baud rate using the UCAxBR0 and UCAxBR1 registers, and enable the UART module using the UCAxCTL1 register. Then, use the UCAxTXBUF and UCAxRXBUF registers to transmit and receive data.
• Can I use the MSP430G2553CY with a 5V power supply?
  No, the MSP430G2553CY is not 5V tolerant and should not be used with a 5V power supply. The maximum recommended voltage is 3.6V.