8-bit MCU Series (80C51-based)

The W78ERD2 is an 8-bit Microcontroller which is pin- and instruction-set-compatible with the standard 80C52. The W78ERD2 contains a 64-KB Flash EPROM whose contents may be updated in-system by a loader program stored in an auxiliary, 4-KB Flash EPROM Once the contents are confirmed, it CAN be protected for security.The W78ERD2 also contains 256 bytes of on-chip RAM; 1 KB of auxiliary RAM; four 8-bit, bi-directional and bit-addressable I/O ports; an additional 4-bit port P4; three 16-bit Timer counters; and a serial port. These peripherals are all supported by nine interrupt sources with 4 levels of priority.
By Winbond Electronics Corp America
W78ERD2 's PackagesW78ERD2 's pdf datasheet
W78ERD2A40DL DIP
W78ERD2A40PL PLCC
W78ERD2A40FL PQFP
W78ERD2A




W78ERD2 Pinout, Pinouts
W78ERD2 pinout,Pin out
This is one package pinout of W78ERD2,If you need more pinouts please download W78ERD2's pdf datasheet.

W78ERD2 Application circuits
W78ERD2 circuits
This is one application circuit of W78ERD2,If you need more circuits,please download W78ERD2's pdf datasheet.


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