This part is a kind of semiconductor called HT48R30A-1.

Function of this product has 8-Bit Microcontroller.

Manufacturers : Holtek Semiconductor Inc

Image and pinout :

Some of the text within the PDF file :

HT48R30A-1 8-Bit Microcontroller Features · · · · · · · · · Operating voltage: fSYS=4MHz: 3.3V~5.5V fSYS=8MHz: 4.5V~5.5V Low voltage reset function 25 bidirectional I/O lines (max.) 1 interrupt input shared with an I/O line 8-bit programmable timer/event counter with overflow interrupt and 8-stage prescaler On-chip RC oscillator, external crystal and RC oscillator 32768Hz crystal oscillator for timing purposes only Watchdog Timer 2048´14 program memory ROM · · · · · · · · · · 96´8 data memory RAM Buzzer driving pair and PFD supported HALT function and wake-up feature reduce power consumption 4-level subroutine nesting Up to 0.5ms instruction cycle with 8MHz system clock at VDD=5V Bit manipulation instruction 14-bit table read instruction 63 powerful instructions All [ ... ]

HT48R30A-1 PDF Datasheet Download