8-bit MCU Series (80C51-based)

The W78E058B is an 8-bit Microcontroller which has an in-system programmable Flash EPROM for firmware updating. The instruction set of the W78E058B is fully compatible with the standard 8052. The W78E058B contains a 32K bytes of main ROM and a 4K bytes of auxiliary ROM which allows the contents of the 32KB main ROM to be updated by the loader program located at the 4KB auxiliary ROM; 512 bytes of on-chip RAM; four 8-bit bi-directional and bit-addressable I/O ports; an additional 4-bit port P4; three 16-bit Timer counters; a serial port. These peripherals are supported by an eight sources two-level interrupt capability.
By Winbond Electronics Corp America
W78E058B 's PackagesW78E058B 's pdf datasheet

W78E058B Pinout, Pinouts
W78E058B pinout,Pin out
This is one package pinout of W78E058B,If you need more pinouts please download W78E058B's pdf datasheet.

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