The maximum operating frequency of the MC68HC908LB8CDWE is 10 MHz, but it can be overclocked to 12 MHz with careful consideration of power consumption and thermal management.
The internal oscillator on the MC68HC908LB8CDWE can be configured using the OSCCLK and OSCSTEN bits in the Option Register (OPT_REG). The oscillator frequency can be set to 4 MHz, 8 MHz, or 10 MHz.
The maximum amount of current that can be sourced or sunk by the I/O pins on the MC68HC908LB8CDWE is 25 mA per pin, with a total current limit of 100 mA for all I/O pins combined.
The MC68HC908LB8CDWE has a built-in watchdog timer that can be enabled and configured using the WDTCSR register. The watchdog timer can be set to timeout after 128, 256, 512, or 1024 clock cycles.
The minimum voltage range for the MC68HC908LB8CDWE is 2.7V, and the maximum voltage range is 5.5V. Operating the device outside of this range may cause unpredictable behavior or damage to the device.
MC68HC908LB8CDWE datasheet
by Freescale Semiconductor
