W78C52D Datasheet PDF | Winbond Electronics Corporation

Winbond Electronics Corporation W78C52D

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 80C52 microcontroller series. The W78C052D 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 ), three 16-bit timer/counters, one watchdog timer and a serial port.

Part No.	W78C52D
Datasheet	W78C52D Download
Manufacturer	Winbond Electronics Corporation
Description	Microcontroller
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GENERAL DESCRIPTION

These peripherals are supported by a eight-source, two-level interrupt capability. There are 256 bytes of RAM and an 8K byte mask ROM for application programs. The W78C052D 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. 2.

FEATURES

y Fully static design y Supply voltage of 4.5V to 5.5V y DC-40 MHz operation y 256 bytes of on-chip scratchpad RAM y 8K bytes of on-chip mask ROM y 64K bytes program memory address space y 64K bytes data memory address space y Four 8-bit bidirectional ports y Three 16-bit timer/counters y One full duplex serial port y Eight-source, two-level interrupt capability y One extra 4-bit bit-addressable I/O port y T...