MC68HRC705KJ1CP Datasheet

M68HC05 Microcontrollers


Features on the MC68HC705KJ1 include:
• Robust noise immunity
• 4.0-MHz internal operating frequency at 5.0 V
• 1240 Bytes of EPROM/OTPROM (electrically programmable read-only memory/one-time
   programmable read-only memory), including eight bytes for user vectors
• 64 bytes of user RAM
• Peripheral modules:
   – 15-stage multifunction timer
   – Computer operating properly (COP) watchdog
• 10 bidirectional input/output (I/O) lines, including:
   – 10-mA sink capability on all I/O pins
   – Software programmable pulldowns on all I/O pins
   – Keyboard scan with selectable interrupt on four I/O pins
   – 5.5-mA source capability on six I/O pins
• Selectable sensitivity on external interrupt (edge- and level-sensitive or edge-sensitive only)
• On-chip oscillator with connections for:
   – Crystal
   – Ceramic resonator
   – Resistor-capacitor (RC) oscillator (MC68HRC705KJ1) with or without external resistor
   – External clock
   – Low-speed (32-kHz) crystal (MC68HLC705KJ1)
• Memory-mapped I/O registers
• Fully static operation with no minimum clock speed
• Power-saving stop, halt, wait, and data-retention modes
• External interrupt mask bit and acknowledge bit
• Illegal address reset
• Internal steering diode and pullup resistor from RESET pin to VDD
• Selectable EPROM security(1)
• Selectable oscillator bias resistor




Manufacturer information

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