P87C51RD2FBD/01,15 datasheet by NXP Semiconductors

P87C51RD2FBD/01,15 Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with this microcontroller?
  The maximum clock frequency for the P87C51RD2FBD/01,15 is 40 MHz, but it can also be operated at lower frequencies down to 0 Hz for power-saving modes.
• How do I configure the oscillator circuit for this microcontroller?
  The oscillator circuit for the P87C51RD2FBD/01,15 can be configured using external resistors and capacitors. A typical configuration is to use a 12 MHz crystal oscillator with 22 pF capacitors and 1 kΩ resistors.
• What is the maximum amount of current that can be sourced or sunk by the I/O pins?
  The maximum current that can be sourced by the I/O pins of the P87C51RD2FBD/01,15 is 15 mA, and the maximum current that can be sunk is 20 mA.
• How do I implement a watchdog timer with this microcontroller?
  The P87C51RD2FBD/01,15 has a built-in watchdog timer that can be enabled and configured using the WDTE and WDT bits in the PCON register. The watchdog timer can be set to timeout after 16, 32, 64, or 128 machine cycles.
• Can I use the UART of this microcontroller for serial communication?
  Yes, the P87C51RD2FBD/01,15 has a built-in UART that can be used for serial communication. The UART can be configured for asynchronous communication with a baud rate generator and supports 5, 6, 7, or 8 data bits, 1 or 2 stop bits, and odd, even, or no parity.