This part is a kind of semiconductor called ATmega48.

Function of this product has Automotive 8-bit AVR Microcontroller.

Manufacturers : Atmel

Image and pinout :

Some of the text within the PDF file :

ATmega48/88/168 Automotive 8-bit AVR Microcontroller with 8Kbytes In-system Programmable Flash DATASHEET Features ● High performance, low power AVR® 8-bit microcontroller ● Advanced RISC architecture ● 131 powerful instructions – most single clock cycle execution ● 32 8 general purpose working registers ● Fully static operation ● Up to 16MIPS throughput at 16MHz ● On-chip 2-cycle multiplier ● Non-volatile program and data memories ● 4/8/16Kbytes of in-system self-programmable flash (ATmega48/88/168) ● Endurance: 75,000 write/erase cycles ● Optional boot code section with independent lock bits ● In-system programming by on-chip boot program ● True read-while-write operation ● 256/512/512 Bytes EEPROM (ATmega48/88/168) ● Endurance: 100,000 write/erase c [ ... ]

ATmega48 PDF Datasheet Download