This part is a kind of semiconductor called SC9351.

Function of this product has Audio System Control MCU.

Manufacturers : Silan

Image and pinout :

Some of the text within the PDF file :

SC9351 AUDIO SYSTEM CONTROL MCU DESCRIPTION SC9351 is an 8051-based MCU with built-in 64KByte FLASH, 8KByte 2 RAM and abundant on-chip periphery modules including I C, UART, SPI, ADC and RTC, etc. FEATURES * In system programming(ISP) * 2.7-3.6V supply voltage for chip core, together with internal or external LDO. * 8051 architecture compatible with MCS51 instructions 2~4 clock cycles for per instruction Dual data pointer to improve the data processing efficiency * Built-in 64Kx8 FLASH programmed by on-chip program or programmer for program memory or data memory * Data memory IDATA : 256Byte(compatible with 8051) + 64Byte(save data when power down) XDATA: 8Kbyte external data memory, low 4K of which can be program memory for Flash programming * Integrate RTC providi [ ... ]

SC9351 PDF Datasheet Download