
MC68HC05C8A
—
Rev. 3.0
General Release Specification
MOTOROLA
General Description
15
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R
General Release Specification — MC68HC05C8A
Section 1. General Description
1.1 Contents
1.2
1.3
1.4
1.5
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
1.5.6
1.5.7
1.5.8
1.5.9
1.5.10
Introduction...............................................................................15
Features....................................................................................16
Mask Options............................................................................18
Functional Pin Description........................................................18
V
DD
and V
SS
........................................................................22
IRQ......................................................................................22
OSC1 and OSC2.................................................................22
RESET ................................................................................22
TCAP...................................................................................22
TCMP..................................................................................22
Port A (PA0–PA7) ...............................................................23
Port B (PB0–PB7) ...............................................................23
Port C (PC0–PC7)...............................................................23
Port D (PD0–PD5 and PD7)................................................23
1.2 Introduction
The MC68HC05C8A is an enhanced version of the MC68HC05C8. It
includes keyboard scanning logic, a high current pin, a COP watchdog
timer, and read-only memory (ROM) security feature.