The recommended operating voltage range for P87LPC764BDH is 2.4V to 3.6V, with a typical voltage of 3.3V.
The oscillator can be configured using the OSCCFG register. The oscillator frequency can be set to either 12 MHz or 14.7456 MHz, and the oscillator mode can be set to either internal RC oscillator or external crystal oscillator.
The maximum clock frequency supported by the P87LPC764BDH is 14.7456 MHz.
The UART interface on the P87LPC764BDH can be used by configuring the UART registers (UARTn_LCR, UARTn_MCR, UARTn_FCR, etc.) and enabling the UART clock. The UART interface supports baud rates up to 115.2 kbps.
The maximum current consumption of the P87LPC764BDH is approximately 10 mA at 3.3V and 14.7456 MHz clock frequency.
P87LPC764BDH datasheet
by NXP Semiconductors
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