LPC840: 32-Bit Arm® Cortex®-M0+-Based Low-Cost MCU
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.
Description
Product Details
Block Diagram
LPC84x MCU
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,
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