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.

FEATURES
• Fully static design
• Supply voltage of 1.8V to 5.5V
• Low power consumption at full supply voltage
• DC-24 MHz operation
• 256 bytes of on-chip scratchpad RAM
• 64K bytes program memory address space
• 64K bytes data memory address space
• Four 8-bit bidirectional ports
• Three 16-bit timer/counters
• One full duplex serial port
• Boolean processor
• Six-source, two-level interrupt capability
• Built-in power management
• 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