Datasheet
LPC4370 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 2 — 21 October 2013 78 of 150
NXP Semiconductors
LPC4370
32-bit ARM Cortex-M4/M0 microcontroller
• Flag to indicate watchdog reset.
• Programmable 24-bit timer with internal prescaler.
• Selectable time period from (T
cy(WDCLK)
256 4) to (T
cy(WDCLK)
2
24
4) in
multiples of T
cy(WDCLK)
4.
7.21 Analog peripherals
7.21.1 12-bit high-speed Analog-to-Digital Converter (ADCHS)
7.21.1.1 Features
• 12-bit high-speed ADC.
• Six single-sided input channels or one differential input channel.
• Descriptor based conversion sequence for single or multiple inputs.
• Integrated 14-bit timer.
• Automatic high/low threshold detection.
• Power-down mode.
• Measurement range of 0 V to 1.2 V.
• 12-bit conversion rate of 80 MSamples/s.
• Conversion on transition on input pin or various internal signals.
• Output FIFO with DMA support.
7.21.2 10-bit Analog-to-Digital Converter (ADC0/1)
7.21.2.1 Features
• 10-bit successive approximation analog to digital converter.
• Input multiplexing among 8 pins per ADC for a total of 16 individual channels.
• Power-down mode.
• Measurement range 0 to VDDA.
• Sampling frequency up to 400 kSamples/s.
• Burst conversion mode for single or multiple inputs.
• Optional conversion on transition on ADCTRIG0 or ADCTRIG1 pins, combined timer
outputs 8 or 15, or the PWM output MCOA2.
• Individual result registers for each A/D channel to reduce interrupt overhead.
• DMA support.
7.21.3 Digital-to-Analog Converter (DAC)
7.21.3.1 Features
• 10-bit resolution
• Monotonic by design (resistor string architecture)
• Controllable conversion speed
• Low power consumption