W78C32C Datasheet, PDF (2/18 Pages) Winbond – 8-BIT MICROCONTROLLER

W78C32C/W78C032C
1. GENERAL DESCRIPTION
The W78C032C microcontroller supplies a wider frequency range than most 8-bit microcontrollers on
the market. It is compatible with the industry standard 80C32 microcontroller series.
The W78C032C 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 W78C032C 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
1.processor.
2. FEATURES
 8-bit CMOS microcontroller
 Fully static design
 Low standby current at full supply voltage
 DC-40 MHz operation
 256 bytes of on-chip scratchpad RAM
 ROMless operation
 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:
− Lead Free (RoHS) DIP 40: W78C032C40DL
− Lead Free (RoHS) PLCC 44: W78C032C40PL
− Lead Free (RoHS) PQFP 44: W78C032C40FL
-2-