IC MCU 8Bit 1.2KB OTP 16DIP
Features
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 security1
• Selectable oscillator bias resistor
