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W78M032A24FL

8-BIT MICROCONTROLLER

Winbond 

W78L32/W78L032A/W78M032A

1. GENERAL DESCRIPTION

The W78L32 microcontroller supplies a wider frequency range and supply voltages than most 8-bit

microcontrollers on the market. It is compatible with the industry standard 80C32 microcontroller

series.

The W78L32 contains four 8-bit bidirectional parallel ports, three 16-bit timer/counters and a serial

port. These peripherals are supported by a six-source, two-level interrupt capability. There are 256

bytes of RAM, and the device supports ROMless operation for application programs.

The W78L32 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 1.8V to 5.5V

y Low power consumption at full supply voltage

y DC-24 MHz operation

y 256 bytes of on-chip scratchpad RAM

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 Boolean processor

y Six-source, two-level interrupt capability

y Built-in power management

y Packages:

− DIP 40: W78L32-24

− PLCC 44: W78L32P-24

− QFP 44: W78L32F-24

− Lead Free (RoHS) DIP 40: W78L032A24DL, W78M032A24DL

− Lead Free (RoHS) PLCC 44: W78L032A24PL, W78M032A24PL

− Lead Free (RoHS) PQFP 44: W78L032A24FL, W78M032A24FL

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