LPC4370 datasheet(78/150 Pages) NXP

78 / 150 page

LPC4370

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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 (Tcy(WDCLK)  256  4) to (Tcy(WDCLK)  224  4) in

multiples of Tcy(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

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