The MC68HC705J2CP is an 8-bit microcontroller unit (MCU) originally designed by Motorola/Freescale, now supplied by Rochester Electronics. Part of the MC68HC05 family, it is a low-cost, low-power microcontroller suitable for various embedded control applications.

Applications

• Low-end consumer electronics (e.g., toys, simple remote controls).
• Small appliance control (e.g., timers, basic controllers).
• Simple industrial control systems.
• Low-power portable devices.
• Educational and hobbyist projects.

Features

• 8-bit CPU core based on the MC68HC05 architecture.
• 1280 bytes of ROM/EPROM/EEPROM for program storage. Likely an EEPROM from Rochester.
• 64 bytes of RAM for data storage.
• 12 bidirectional I/O lines.
• 8-bit timer with prescaler.
• On-chip oscillator.
• Low-voltage inhibit (LVI).

Benefits

• Low cost for price-sensitive applications.
• Low power consumption for battery-powered devices.
• Easy to program and use due to the simple architecture.
• Integrated timer and I/O ports reduce external component count.
• Suitable for simple control tasks.

Additional Details

The MC68HC705J2CP typically operates at a clock speed of 2 MHz. The 'CP' suffix refers to the package, typically a PDIP (Plastic Dual In-line Package). The supply voltage is typically 5V. Designers should refer to the Rochester Electronics datasheet for specific details on memory type, operating temperature range, pinout diagram, and timing characteristics.