MCHC705JJ7CPE datasheet by Freescale Semiconductor

MCHC705JJ7CPE Frequently Asked Questions (FAQs)

• What is the recommended oscillator crystal frequency for this microcontroller?
  The recommended oscillator crystal frequency for the MCHC705JJ7CPE is 32.768 kHz, which is a standard frequency for real-time clock applications.
• How do I configure the internal flash memory for optimal performance?
  To configure the internal flash memory for optimal performance, set the flash wait states to 2-3 cycles, and use the flash cache to reduce access times. Additionally, consider using the flash accelerator module to improve performance.
• What is the maximum operating frequency of the MCHC705JJ7CPE?
  The maximum operating frequency of the MCHC705JJ7CPE is 20 MHz, but it can be overclocked to 24 MHz with careful consideration of power consumption and thermal management.
• How do I implement a watchdog timer on this microcontroller?
  The MCHC705JJ7CPE has a built-in watchdog timer module that can be enabled and configured using the WDOG_CS1 and WDOG_CS2 registers. The watchdog timer can be set to trigger a reset or interrupt upon timeout.
• What is the power consumption of the MCHC705JJ7CPE in low-power modes?
  The power consumption of the MCHC705JJ7CPE in low-power modes depends on the specific mode and configuration. In Stop mode, the current consumption is typically around 10-20 uA, while in Wait mode, it is around 50-100 uA.