LPC1857JET256,551 datasheet by NXP Semiconductors

LPC1857JET256,551 Frequently Asked Questions (FAQs)

• What is the maximum operating temperature range for the LPC1857JET256,551?
  The maximum operating temperature range for the LPC1857JET256,551 is -40°C to +105°C.
• How do I configure the clock settings for the LPC1857JET256,551?
  The clock settings for the LPC1857JET256,551 can be configured using the Clock Control Unit (CCU) registers. The CCU provides a flexible clock generation and distribution system that allows the user to configure the clock frequencies and sources for the various peripherals and domains.
• What is the maximum frequency for the LPC1857JET256,551?
  The maximum frequency for the LPC1857JET256,551 is 180 MHz.
• How do I use the ADC on the LPC1857JET256,551?
  The ADC on the LPC1857JET256,551 is a 12-bit successive approximation ADC with a maximum sampling rate of 1.4 Msamples/s. To use the ADC, the user must configure the ADC clock, select the ADC channel, and start the ADC conversion. The ADC result can then be read from the ADC result register.
• What is the purpose of the Boot ROM on the LPC1857JET256,551?
  The Boot ROM on the LPC1857JET256,551 contains the boot loader code that is executed when the device is powered on or reset. The boot loader code initializes the device, configures the clock settings, and loads the user application code from the external flash memory.