P89LPC920FDH datasheet by NXP Semiconductors

P89LPC920FDH Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the P89LPC920FDH?
  The maximum clock frequency for the P89LPC920FDH is 12 MHz, but it can be overclocked up to 15 MHz with some limitations. However, it's recommended to follow the datasheet specifications to ensure reliable operation.
• How do I configure the oscillator for the P89LPC920FDH?
  The P89LPC920FDH has an internal oscillator that can be configured using the OSCCFG register. The oscillator frequency can be set to 12 MHz, 6 MHz, or 3 MHz, and the clock source can be selected as internal, external, or crystal oscillator.
• What is the power consumption of the P89LPC920FDH?
  The power consumption of the P89LPC920FDH depends on the operating frequency, voltage, and mode. In active mode, the typical current consumption is around 10 mA at 3.3V and 12 MHz. In sleep mode, the current consumption is around 10 μA.
• How do I program the P89LPC920FDH?
  The P89LPC920FDH can be programmed using a variety of tools, including the NXP LPC900 programmer, Keil µVision, and IAR Embedded Workbench. The device can be programmed using the ISP (In-System Programming) interface or the UART interface.
• What is the maximum amount of memory that can be used with the P89LPC920FDH?
  The P89LPC920FDH has 8 KB of on-chip flash memory and 256 bytes of on-chip RAM. It also has a 4 KB boot ROM that contains the ISP programming interface. External memory can be connected to the device using the external memory interface.