MC68HC705KJ1

• 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 V_DD
• Selectable EPROM Security¹
• Selectable Oscillator Bias Resistor