MC68HC908KX8 Datasheet, PDF (29/310 Pages) Motorola, Inc – Microcontrollers

Technical Data — MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8
Section 1. General Description
1.1 Contents
1.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1.4 MCU Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
1.5 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
1.5.1
1.5.2
Supply Pins (V_DD and V_SS) . . . . . . . . . . . . . . . . . . . . . . . . . 33
Oscillator Pins (OSC1 and OSC2) . . . . . . . . . . . . . . . . . . . .33
1.5.3 External Interrupt Pin (IRQ1) . . . . . . . . . . . . . . . . . . . . . . . .34
1.5.4 Port A Input/Output (I/O) Pins
(PTA4/KBD4–PTA0/KBD0) . . . . . . . . . . . . . . . . . . . . . . . 34
1.5.5
1.5.6
Analog Reference Pin (V_REFH). . . . . . . . . . . . . . . . . . . . . . . 35
Port B Input/Output (I/O) Pins
(PTB7/(OSC2)/RST–PTB0/AD0). . . . . . . . . . . . . . . . . . . 35
1.2 Introduction
The MC68HC908KX8 is a member of the low-cost, high-performance
M68HC08 Family of 8-bit microcontroller units (MCU). The M68HC08
Family is based on the customer-specified integrated circuit (CSIC)
design strategy. All MCUs in the family use the enhanced M68HC08
central processor unit (CPU08) and are available with a variety of
modules, memory sizes and types, and package types.
The information contained is this document pertains to the
MC68HC908KX2 and the MC68HC08KX8 with the exceptions found in:
• Appendix A. MC68HC908KX2 Overview
• Appendix B. MC68HC08KX8 Overview
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 — Rev. 1.0
MOTOROLA
General Description
Technical Data
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