8-bit Microcontroller

The W78L51 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 W78L51 contains four 8-bit bidirectional parallel ports, one extra 4-bit bit-addressable I/O port (Port 4) and two additional external interrupts ( INT2 , INT3 ), two 16-bit Timer Counters one watchdog Timer and a serial port. These peripherals are supported by a seven-source, two-level interrupt capability. There are 128 bytes of RAM and an 4K byte mask ROM for application programs. The W78L51 Microcontroller has two power reduction modes, idle mode and power-down mode, both of which are software selectable. The idle mode turns off the processor Clock but allows for continued peripheral operation. The power-down mode stops the crystal Oscillator for minimum power consumption. The external Clock CAN be stopped at any time and in any state without affecting the processor. By Winbond Electronics Corp America
W78L51 's PackagesW78L51 's pdf datasheet

W78L51 Pinout, Pinouts
W78L51 pinout,Pin out
This is one package pinout of W78L51,If you need more pinouts please download W78L51's pdf datasheet.

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