MC68705P3

® MOTOROLA Advance Inf'orIllation 8-BIT EPROM MICROCOMPUTER UNIT The MC68705P3 Microcomputer Unit (MCU) is an EPROM member of the M6805 Family of low-cost single-chip microcomputers. The user programmable EPROM allows program changes and lower volume applications in comparison to the factory mask programmable versions. The EPROM versions also reduce the development costs and turnaround time for prototype evaluation of the mask ROM versions. This 8-bit microcomputer contains a CPU, on-chip CLOCK, EPROM, bootstrap ROM, RAM, I/O, and a TIMER. Because of these features, the MC68705P3 offers the user an economical means of designing an M6805 Family MCU into his system, either as a prototype evaluation, as a low-volume production run, or a pilot production run. HARDWARE FEATURES: 8-Bit Architecture 112 bytes of RAM Memory Mapped I/O 1804 Bytes of User EPROM Internal 8-Bit Timer with 7-Bit Prescaler Programmable Prescaler Programmable Timer Input Modes External Timer Interrupt Vectored Interrupts - External, Timer, and Software Zero-Cross Detection on INT Input 20 TTL/CMOS Compatible Bidirectional I/O Lines (8 Lines are LED Compatible) On-Chip Generator Master and Power-On Reset Complete Development System Support on EXORciser Emulates the MC6805P2 and MC6805P4 (Except for VSB) Bootstrap Program in ROM Simplifies EPROM Programming SOFTWARE FEATURES: Similar to M6800 Family Byte Efficient Instruction Set Easy to Program True Bit Manipulation ...