MC68HC705J1A/D
Rev. 3.0
HC 5
MC68HC705J1A
MC68HRC705J1A
MC68HSC705J1A
MC68HSR705J1A
HCMOS Microcontroller Units
TECHNICAL DATA
Technical Data
Motorola reserves the right to make changes without further notice to
any products herein to improve reliability, function or design. Motorola
does not assume any liability arising out of the application or use of any
product or circuit described herein; neither does it convey any license
under its patent rights nor the rights of others. Motorola products are not
designed, intended, or authorized for use as components in systems
intended for surgical implant into the body, or other applications intended
to support or sustain life, or for any other application in which the failure
of the Motorola product could create a situation where personal injury or
death may occur. Should Buyer purchase or use Motorola products for
any such unintended or unauthorized application, Buyer shall indemnify
and hold Motorola and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such
unintended or unauthorized use, even if such claim alleges that Motorola
was negligent regarding the design or manufacture of the part.
© Motorola, Inc., 1999
Technical Data
2
MC68HC705J1A — Rev. 3.0
MOTOROLA
Technical Data — MC68HC705J1A
List of Sections
Section 1. General Description . . . . . . . . . . . . . . . . . . . . 19
Section 2. Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Section 3. Central Processor Unit (CPU) . . . . . . . . . . . . 43
Section 4. Resets and Interrupts . . . . . . . . . . . . . . . . . . . 67
Section 5. Low-Power Modes. . . . . . . . . . . . . . . . . . . . . . 77
Section 6. Parallel Input/Output (I/O) Ports . . . . . . . . . . 85
Section 7. Computer Operating Properly
(COP) Module . . . . . . . . . . . . . . . . . . . . . . . . . 95
Section 8. External Interrupt Module (IRQ) . . . . . . . . . . . 99
Section 9. Multifunction Timer Module . . . . . . . . . . . . . 107
Section 10. Electrical Specifications . . . . . . . . . . . . . . . 115
Section 11. Mechanical Specifications . . . . . . . . . . . . . 129
Section 12. Ordering Information . . . . . . . . . . . . . . . . . 133
Appendix A. MC68HRC705J1A . . . . . . . . . . . . . . . . . . . 135
Appendix B. MC68HSC705J1A . . . . . . . . . . . . . . . . . . . 139
Appendix C. MC68HSR705J1A . . . . . . . . . . . . . . . . . . . 143
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
MC68HC705J1A — Rev. 3.0
MOTOROLA
List of Sections
Technical Data
3
List of Sections
Technical Data
4
List of Sections
MC68HC705J1A — Rev. 3.0
MOTOROLA
Technical Data — MC68HC705J1A
Table of Contents
Section 1. General Description
1.1
1.2
1.3
1.4
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Programmable Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
1.5
Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
1.5.1
V
DD
and V
SS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
1.5.2
OSC1 and OSC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
1.5.2.1
Crystal Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
1.5.2.2
Ceramic Resonator Oscillator . . . . . . . . . . . . . . . . . . . . .26
1.5.2.3
RC Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
1.5.2.4
External Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
1.6
1.7
1.8
1.9
RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
IRQ/V
PP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
PA0–PA7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
PB0–PB5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Section 2. Memory
2.1
2.2
2.3
2.4
2.5
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Memory Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Input/Output Register Summary . . . . . . . . . . . . . . . . . . . . . . . .33
RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
MC68HC705J1A — Rev. 3.0
MOTOROLA
Table of Contents
Technical Data
5
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