This part is a kind of semiconductor called LPC1100.

Function of this product has Cortex-M0 based microcontrollers.

Manufacturers : NXP Semiconductors

Image and pinout :

Some of the text within the PDF file :

NXP 50-MHz, 32-bit Cortex-M0™ microcontrollers LPC1100 Cortex-M0 based microcontrollers with industry-leading power and efficiency Built around the new Cortex-M0 architecture, the smallest, lowest power, and most energy-efficient ARM core ever developed, these MCUs are ideally equipped for use in many traditional 8/16-bit applications. Key features } ARM Cortex-M0 processor - 50 MHz operation -N  ested Vectored Interrupt Controller for fast deterministic interrupts -W  akeup Interrupt Controller allows automatic wake from a priority interrupt -T  hree reduced-power modes: Sleep, Deep-sleep, and Deep power-down } Memories - Up to 128 KB Flash memory - Up to 16 KB SRAM } Serial peripherals -U  ART with fractional baud rate generation, internal FIFO, and RS-485 support -U  p to 2 S [ ... ]

LPC1100 PDF Datasheet Download