Robust and Reliable 32-bit Microcontroller (MCU) based on Arm® Cortex®-M0 Core


See product image

Block Diagram

LPC12D27 Block Diagram

LPC12D27 Block Diagram


  • 40-Segment LCD driver
  • One to four backplanes
  • On-chip display RAM with auto-increment addressing
  • Arm Cortex-M0 processor, running at frequencies of up to 45 MHz
  • Arm Cortex-M0 built-in Nested Vectored Interrupt Controller (NVIC)
  • Serial Wire Debug (SWD)
  • System tick timer
  • 8 kB SRAM
  • 128 kB on-chip flash programming memory
  • In-System Programming (ISP) and In-Application Programming (IAP)
  • Includes ROM-based 32-bit integer division routines
  • Crystal oscillator with an operating range of 1 MHz to 25 MHz
  • 12 MHz Internal RC (IRC) oscillator trimmed to 1 % accuracy
  • PLL allows CPU operation up to the maximum CPU rate
  • Clock output function with divider
  • Real-Time Clock (RTC)
  • Micro DMA controller with 21 channels
  • CRC engine
  • Two UARTs with fractional baud rate generation and internal FIFO
  • SSP/SPI controller with FIFO and multi-protocol capabilities
  • I2C-bus interface supporting full I2C-bus specification and Fast-mode Plus
  • Programmable output drive on all GPIO pins
  • Up to 40 General Purpose I/O (GPIO) pins with programmable pull-up resistor
  • All GPIO pins can be used as edge and level sensitive interrupt sources
  • Four general purpose counter/timers
  • Windowed Windowed WatchDog Timer (WWDT), IEC-60335 Class B certified
  • One 8-channel, 10-bit ADC
  • Two highly flexible analog comparators
  • Three reduced power modes: Sleep, Deep-sleep, and Deep power-down
  • Processor wake-up from Deep-sleep mode via start logic using 12 port pins
  • Processor wake-up from Deep-power down and Deep-sleep modes via the RTC
  • Brownout detect with three separate thresholds
  • Power-On Reset (POR)
  • Integrated PMU (Power Management Unit)
  • Unique device serial number for identification
  • 3.3 V power supply

Target Applications

  • Thermostats
  • Lighting control
  • Portable medical devices
  • Alarm systems
  • White goods

Part numbers include: LPC12D27FBD100.


Quick reference to our documentation types.

1-5 of 7 documents

Show All


5 hardware offerings


1-5 of 37 software offerings

Show All

Engineering Services

1-5 of 8 engineering services

Show All

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


5 trainings