This is one of the semiconductor types. This part name is STC15F204EA.
This product has MCU functions.
Manufacturers of product is STC.
Image and pinout :
STC15F204EA PDF Datasheet
Some of the text files within the PDF file
With the enhanced kernel, STC15F204EA series execute instructions in 1~6 clock cycles (about 6~7 times the rate of a standard 8051 device), and has a fully compatible instruction set with industrial-standard 80C51 series microcontroller. In-System-Programming (ISP) and In-Application- Programming (IAP) support the users to upgrade the program and data in system. ISP allows the user to download new code without removing the microcontroller from the actual end product; IAP means that the device can write non-valatile data in Flash memory while the application program is running. the STC15F204EA
series has 9 interrupt sources, 10-bit ADC, on-chip high-precision RC oscillator and a one-time enabled Watch-Dog Timer. [ … ]
Please refer to the file for details.