MC68HC04P2

® MOTOROI.A Product Preview 8-BIT HCMOS MICROCOMPUTER UNITS The MC68HC04P2 and MC68HC04P3 HCMOS microcomputer units (MCUs) are members of the M68HC04 Family of very low-cost singlechip microcomputers. These 8-bit microcomputers contain a CPU, onchip CLOCK, ROM, RAM, I/O, and TIMER. They are designed for the user who needs an economical microcomputer with the proven capabilities of the M6800-based instruction set. The following are some of the hardware and software highlights of the MC68HC04P2 and M C68H C04P3 microcomputers. HARDWARE FEATURES Low Power HCMOS Power Saving Stop and Wait Modes 8-Bit Architecture MC68HC04P2 and MC68HC04P3 are Pin Compatible With the MC6804P2 RAM: MC68HC04P2 - 32 Bytes MC68HC04P3 - 128 Bytes Memory Mapped I/O User ROM: MC68HC04P2 - 1024 Bytes MC68HC04P3 - 2048 Bytes 72 Bytes of ROM for Look-Up Tables 20 TTL/CMOS Compatible Bidirectional I/O Lines (Eight Lines are LED Compatible) On-Chip Clock Generator Self-Check Mode Master Reset Complete Development System Support on EXORciser Software Programmable Timer Prescaler' 5 Volt Single Supply SOFTWARE FEATURES Similar to M6800 Family Byte Efficient Instruction Set Easy to Program True Bit Manipulation Bit Test and Branch Instruction Versatile Interrupt Handling Versatile Indirect Registers Conditional Branches Single Instruction Memory Examine/Change Timer Pin is Software Programmable as Clock Input or Timer Input 10 Powerful Addressing Modes USER SEL...