MC68HC705K1 Maximum Ratings
MC68HC705K1 Features
Features of the MCU include:
• Popular M68HC05 CPU
• Memory-mapped input/output (I/O) registers
• 504 bytes of EPROM/OTPROM, including eight user vector locations
• 32 bytes of user random-access memory (RAM)
• 64-bit personality EPROM
• 10 bidirectional I/O pins with these features:
Software programmable pulldown devices
Four I/O pins with 8-mA current sinking capability
Four I/O pins with maskable external interrupt capability
• Hardware mask and flag for external interrupts
• Fully static operation with no minimum clock speed
• On-chip oscillator with connections for:
Crystal or ceramic resonator
Mask-optional 2-pin or 3-pin resistor-capacitor (RC) oscillator
• Computer operating properly (COP) watchdog
• 15-bit multifunction timer with real-time interrupt circuit
• Power-saving stop, wait, halt, and data-retention modes
• 8* 8 unsigned multiply instruction
• Illegal address reset
• Low-voltage reset
• 16-pin plastic dual in-line package (PDIP)
• 16-pin small outline integrated circuit package (SOIC)
• 16-pin ceramic DIP (cerdip)
MC68HC705K1 Connection Diagram
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