
MC68HC05C8A MC68HCL05C8A MC68HSC05C8A Data Sheet, Rev. 5.1
Freescale Semiconductor
13
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