MC68HC05C8A Datasheet, PDF (13/116 Pages) Motorola, Inc – Microcontrollers

Chapter 1
General Description
1.1 Introduction
The MC68HC05C8A is an enhanced version of the MC68HC05C8. It includes keyboard scanning logic,
a high current pin, a computer operating properly (COP) watchdog timer, and read-only memory (ROM)
security feature.
1.2 Features
• M68HC05 core
• Single 3.0- to 5.5-volt supply
• Available packages:
– 40-pin dual in-line (DIP)
– 42-pin plastic shrink dual in-line (SDIP)
– 44-lead plastic leaded chip carrier (PLCC)
– 44-lead quad flat pack (QFP)
• On-chip oscillator for crystal/ceramic resonator
• Fully static operation
• 7744 bytes of user ROM
• ROM security feature
• 176 bytes of on-chip random-access memory (RAM)
• Asynchronous serial communications interface (SCI) system
• Synchronous serial peripheral interface (SPI) system
• 16-bit capture/compare timer system
• Computer operating properly (COP) watchdog timer
• 24 bidirectional input/output (I/O) lines
• Seven input-only lines
• User mode
• Self-check mode
• Power-saving stop and wait modes
• High current sink and source on one port pin (PC7)
• Mask selectable external interrupt sensitivity
• Mask-programmable keyscan logic
MC68HC05C8A • MC68HCL05C8A • MC68HSC05C8A Data Sheet, Rev. 5.1
Freescale Semiconductor
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