The MC68HC705F8FU is an 8-bit microcontroller, originally manufactured by Motorola/Freescale and now supplied by Rochester Electronics. It belongs to the MC68HC05 family of microcontrollers, known for their cost-effectiveness and suitability for embedded control applications. It's a versatile MCU often employed where a balance of processing power, memory, and I/O capabilities is required.

Applications

• Consumer electronics (e.g., remote controls, toys, handheld devices).
• Industrial control systems (e.g., process controllers, motor control).
• Automotive applications (e.g., dashboard controls, sensor interfaces).
• Security systems (e.g., alarm systems, access control).
• Medical devices (e.g., portable monitors).

Features

• 8-bit CPU core based on the MC68HC05 architecture.
• 8 KB of on-chip ROM/EPROM/EEPROM for program storage. Rochester is likely providing EEPROM parts.
• 176 bytes of RAM for data storage.
• 20 programmable I/O lines for interfacing with external devices.
• 8-bit timer with prescaler for timing and counting functions.
• Serial Communications Interface (SCI) for asynchronous serial communication (UART).
• Analog-to-Digital Converter (ADC) for converting analog signals to digital values.
• On-chip oscillator for generating the system clock.
• Low-voltage inhibit (LVI) circuit to prevent operation at low voltage levels.

Benefits

• Cost-effective solution for embedded control applications.
• Easy to use due to the simple architecture and instruction set.
• Versatile due to its flexible I/O and peripheral features.
• Low power consumption for battery-powered applications.
• The integrated ADC allows for direct interfacing with analog sensors.

Additional Details

The MC68HC705F8FU microcontroller operates at a clock frequency of typically 4 MHz. The 'FU' suffix usually indicates a specific package type, such as a plastic dual-in-line package (PDIP) or a small outline integrated circuit (SOIC). The specific characteristics regarding memory type, temperature range, and packaging details should be confirmed within the Rochester Electronics datasheet. The ADC resolution and conversion time are key factors for sensor applications.