This part is a kind of semiconductor called 12C509A.
Function of this product has PIC12C509A.
Manufacturers : Microchip Technology
Image and pinout :
Some of the text within the PDF file :
PIC12C5XX 8-Pin, 8-Bit CMOS Microcontrollers Devices included in this Data Sheet: • PIC12C508 • PIC12C508A • PIC12C509 • PIC12C509A • PIC12CR509A • PIC12CE518 • PIC12CE519 Peripheral Features: • 8-bit real time clock/counter (TMR0) with 8-bit programmable prescaler • Power-On Reset (POR) • Device Reset Timer (DRT) • Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation • Programmable code-protection • 1,000,000 erase/write cycle EEPROM data memory • EEPROM data retention > 40 years • Power saving SLEEP mode • Wake-up from SLEEP on pin change • Internal weak pull-ups on I/O pins • Internal pull-up on MCLR pin • Selectable oscillator options: - INTRC: Internal 4 MHz RC oscillator - EXTRC: External low-cost RC oscillator - XT: St [ ... ]