Description

The MC9S12D64MFU is a 16-bit microcontroller unit (MCU) that belongs to the MC9S12DJ64 series. It features a 16-bit central processing unit (HCS12 CPU), 64K bytes of Flash EEPROM, 4K bytes of RAM, and 1K bytes of EEPROM. The MCU also includes standard on-chip peripherals such as two asynchronous serial communications interfaces (SCI), one serial peripheral interface (SPI), an 8-channel IC/OC enhanced capture timer, two 8-channel, 10-bit analog-to-digital converters (ADC), an 8-channel pulse-width modulator (PWM), a digital Byte Data Link Controller (BDLC), a CAN 2.0 A/B software compatible module (MSCAN12), and an Inter-IC Bus. The MC9S12D64MFU has full 16-bit data paths throughout and can operate in an 8-bit narrow mode for lower cost systems. Additionally, it features a pll circuit that allows for adjustable power consumption and performance based on operational requirements.

Specifications and features

• HCS12 Core with upward compatibility to M68HC11 instruction set
• MEBI (Multiplexed External Bus Interface)
• MMC (Module Mapping Control)
• INT (Interrupt control)
• BKP (Breakpoints)
• BDM (Background Debug Mode)
• CRG (Low current Colpitts or Pierce oscillator, PLL, reset, clocks, COP watchdog, real-time interrupt, clock monitor)
• 8-bit and 4-bit ports with interrupt functionality, digital filtering, and programmable trigger
• 64K Flash EEPROM, 1K byte EEPROM, and 4K byte RAM
• Two 8-channel Analog-to-Digital Converters with 10-bit resolution and external conversion trigger capability
• 1M bit per second, CAN 2.0 A/B software compatible module with receive and transmit buffers, flexible identifier filter, separate interrupt channels, and wake-up function
• Enhanced Capture Timer with 16-bit main counter, programmable input capture or output compare channels, and pulse accumulators
• 8 PWM channels with programmable period, duty cycle, and control
• Two asynchronous Serial Communications Interfaces (SCI), Synchronous Serial Peripheral Interface (SPI), Byte Data Link Controller (BDLC), and Inter-IC Bus (IIC)
• 112-Pin LQFP or 80 QFP package with 5V input and drive capability, 5V A/D converter inputs, and operation at 50MHz equivalent to 25MHz Bus Speed
• Development support with single-wire background debug™ mode (BDM) and on-chip hardware breakpoints

Application Scenarios

The MC9S12D64MFU is commonly used in various applications that require a 16-bit microcontroller with versatile features. Some of the common application scenarios include:

• Automotive electronics
• Industrial automation
• Consumer electronics
• Home appliances

Comparison

• Full 16-bit data paths throughout
• Wide range of on-chip peripherals and interfaces
• Flexible identifier filter for CAN communication
• Low power consumption with adjustable performance
• Support for multiple programming languages and development tools

• Relatively higher cost compared to lower-end microcontrollers
• Higher power consumption compared to low-power microcontrollers
• Complex programming and debugging process for beginners