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Details, datasheet, quote on part number:MC68HC11A1P
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Order this document by M68HC11RM/AD Rev. 3.0
M68HC11
Reference Manual
NON-DISCLOSURE
AGREEMENT
HC11
REQUIRED
NON-DISCLOSURE
AGREEMENT
REQUIRED
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.
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TABLE OF CONTENTS Section 1 GENERAL DESCRIPTION
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1.1 General Description of the MC68HC11A8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.2 Programmer's Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.3 Product Derivatives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Section 2 PINS AND CONNECTIONS
2.1 Packages And Pin Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.1.1 MC68HC11A8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.1.2 MC68HC11D3/711D3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.1.3 MC68HC11E9/711E9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 2.1.4 MC68HC811E2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2.1.5 MC68HC11F1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 2.1.6 MC68HC24 Port Replacement Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 2.2 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 2.2.1 Power-Supply Pins (VDD and VSS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 2.2.2 Mode Select Pins (MODB/VSTBY and MODA/LIR) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8 2.2.3 Crystal Oscillator and Clock Pins (EXTAL, XTAL, and E) . . . . . . . . . . . . . . . . . . . . 2-11 2.2.4 Crystal Oscillator Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15 2.2.4.1 Crystals for Parallel Resonance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15 2.2.4.2 Using Crystal Oscillator Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15 2.2.4.3 Using External Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15 2.2.4.4 AT-strip vs AT-cut Crystals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16 2.2.5 Reset Pin (RESET). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16 2.2.6 Interrupt Pins (XIRQ, IRQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 2.2.7 A/D Reference and Port E Pins (VREFL, VREFH, PE[7:0]) . . . . . . . . . . . . . . . . . . . . . 2-18 2.2.8 Timer Port A Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 2.2.9 Serial Port D Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 2.2.10 Ports B and C, STRA, and STRB Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20 2.3 Termination of Unused Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21 2.4 Avoidance of Pin Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23 2.4.1 Zap and Latchup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24 2.4.2 Protective Interface Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24 2.4.3 Internal Circuitry -- Digital Input-Only Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25 2.4.4 Internal Circuitry -- Analog Input-Only Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26 2.4.5 Internal Circuitry -- Digital I/O Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28 2.4.6 Internal Circuitry -- Input/Open-Drain-Output Pin . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29 2.4.7 Internal Circuitry -- Digital Output-Only Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29 2.4.8 Internal Circuitry -- MODB/VSTBY Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30 2.4.9 Internal Circuitry -- IRQ/VPPBULK Pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31 2.5 Typical Single-Chip-Mode System Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31 2.6 Typical Expanded-Mode-System Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33 2.7 System Development and Debug Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37 2.7.1 Load Instruction Register (LIR). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37 2.7.2 Internal Read Visibility (IRV). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37 2.7.3 MC68HC24 Port Replacement Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
M68HC11 REFERENCE MANUAL
TABLE OF CONTENTS
MOTOROLA iii
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