8-bit MCU Series (80C51-based)

The W78C052D Microcontroller supplies a wider frequency and supply voltage range than most 8-bit Microcontrollers on the market. It is compatible with the industry standard 80C51 Microcontroller series.The W78C052D contains four 8-bit bidirectional parallel portsone extra 4-bit bit-addressable I/O port (Port 4) and two additional external interrupts (INT2 ,INT3)two 16-bit Timer countersone watchdog Timer and a serial port. These peripherals are supported by a seven-sourcetwo-level interrupt capability. There are 128 bytes of RAM and an 8K byte mask ROM for application programs.
By Winbond Electronics Corp America
W78C052D 's PackagesW78C052D 's pdf datasheet

W78C052D Pinout, Pinouts
W78C052D pinout,Pin out
This is one package pinout of W78C052D,If you need more pinouts please download W78C052D's pdf datasheet.

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