LPC840: 32-Bit Arm® Cortex®-M0+-Based Low-Cost MCU

LPC84X

Based on the Arm® Cortex®-M0+ core, LPC84x is a low-cost, 32-bit MCU family operating at frequencies of up to 30 MHz. The LPC84x MCU family supports up to 64 KB of flash memory and 16 KB of SRAM.

This family features exceptional power efficiency in the low-current mode using the FRO as the clock source. The peripheral complement of the LPC84x MCU family includes a CRC engine, four I2C-bus interfaces, up to five UARTs, up to two SPI interfaces, capacitive touch interface (enablement coming in Q3), one multi-rate timer, self-wake-up timer, SCTimer/PWM, one general purpose 32-bit counter/timer, a DMA, one 12-bit ADC, two 10-bit DACs, one analog comparator, function-configurable I/O ports through a switch matrix, an input pattern match engine, and up to 54 general-purpose I/O pins.

This device is fully supported by NXP’s MCUXpresso Software and Tools, a comprehensive and cohesive set of free software development tools for Kinetis, LPC and i.MX RT microcontrollers. MCUXpresso SDK also includes project files for Keil MDK and IAR EWARM.

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Block Diagram

LPC84x MCU

LPC84x MCU
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Features

Low power, simple, flexible and small form factor

  • Low-power, 30 MHz Cortex-M0+ core with advanced power optimization
  • Advanced peripherals for full range of timing functionality and design flexibility
  • Serial connectivity
  • Small footprint in popular packages

Memory

  • 64 kB Flash, small 64 B page size suitable for EEPROM emulation
  • 16 kB RAM (Logic for Bit banding across all of SRAM)

Exceptional power efficiency in low-current mode using the FRO as the clock source

  • Free Running Oscillator (FRO)
  • Five power modes
  • Power profile APIs for simple runtime power optimization

FAIM is used to configure the part at start-up

  • Pin configuration including direction and pull-up or pull-down
  • Clocks and PMU for low-power start-up

Full range of timing features from basic to advanced (SCTimer/PWM)

  • Flexible triggers to optimize power use

Accurate 1.2-Msps ADC: 12 ch, 12-bit

  • Ideal for oversampling to improve conversion accuracy
  • Flexible triggers to optimize power use

More serial connectivity

  • 4 I2C for digital sensor interface and more
  • 2 SPI, 5 UART
  • 54 GPIO with switch matrix, support input pattern match engine

Additional features

  • 25-ch DMA offloads core
  • Digital-to-Analog Converter (DAC): 2 ch, 10-bit
  • Capacitive touch interface (enablement coming in Q3)
  • Supported by MCUXpresso SDK, IDE and Config Tools

Part numbers include: LPC844M201JBD48, LPC844M201JBD64, LPC844M201JHI33, LPC844M201JHI48, LPC845M301JBD48, LPC845M301JBD64, LPC845M301JHI33, LPC845M301JHI48.

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Note: For better experience, software downloads are recommended on desktop.

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To find a complete list of our partners that support this product, please see our Partner Marketplace.

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