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The LPC122x extend NXP‘s 32-bit ARM microcontroller continuum and target a wide
range of industrial applications in the areas of factory and home automation. Benefitting
from the ARM Cortex-M0 Thumb instruction set， the LPC122x have up to 50 % higher
code density compared to common 8/16-bit microcontroller performing typical tasks. The
LPC122x also feature an optimized ROM-based divide library for Cortex-M0， which offers
several times the arithmetic performance of software based libraries， as well as highly
deterministic cycle time combined with reduced flash code size. The ARM Cortex-M0
efficiency also helps the LPC122x achieve lower average power for similar applications.
The LPC122x operate at CPU frequencies of up to 45 MHz.They offer a wide range of
flash memory options， from 32 kB to 128 kB. The small 512-byte page erase of the flash
memory brings multiple design benefits， such as finer EEPROM emulation， boot-load
support from any serial interface and ease of in-field programming with reduced on-chip
RAM buffer requirements.
The peripheral complement of the LPC122x includes a 10-bit ADC， two comparators with
output feedback loop， two UARTs， one SSP/SPI interface， one I2C-bus interface with
Fast-mode Plus features， a Windowed Watchdog Timer， a DMA controller， a CRC engine，
four general purpose timers， a 32-bit RTC， a 1% internal oscillator for baud rate
generation， and up to 55 General Purpose I/O （GPIO） pins.
Part LPC1227 is available as a dual-chip module integrating the LPC1227 with a
PCF8576D LCD driver
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