SLASEV3A March 2020 – December 2020 MSP430FR6005 , MSP430FR6007
PRODUCTION DATA
Depending on the device variant (see Section 6), the device with USS module supports a high-frequency crystal on the USSXT pins. External bypass capacitors for the crystal oscillator pins are required. Serially connect a 22-Ω resistor close to the USSXTOUT pin (see Figure 10-4). The USSXT does not support bypass mode, so it is not possible to apply digital clock signals to the USSXTIN pin. Never connect the USSXTIN pin to a power supply line (AVCC, DVCC, or PVCC). If the USSXT pins are not used, terminate them according to Section 7.6.
Figure 10-4 shows a typical connection diagram.
Consider the following items for the USSXT layout:
Figure 10-5 shows the recommended PCB layout.