Description

The MC9S12C128CFU is a microcontroller component in the electronic industry. It belongs to the MC9S12C-Family / MC9S12GC-Family, which are 48/52/80 pin flash-based MCU families. These families provide the power and flexibility of the 16-bit core, making them suitable for a wide range of cost and space sensitive, general-purpose industrial and automotive network applications. The MC9S12C128CFU features standard on-chip peripherals, including a 16-bit central processing unit (CPU12), up to 128K bytes of Flash EEPROM, up to 4K bytes of RAM, an asynchronous serial communications interface (SCI), a serial peripheral interface (SPI), an 8-channel 16-bit timer module (TIM), and an 8-channel, 10-bit analog-to-digital converter (ADC).

Specifications and features

- 16-bit HCS12 core: compatible with M68HC11 instruction set, interrupt stacking and programmer’s model identical to M68HC11, enhanced indexed addressing, MMC (memory map and interface), INT (interrupt control), BDM (background debug mode), and DBG12 (enhanced debug12 module, including breakpoints and change-of-flow trace buffer). MEBI (multiplexed expansion bus interface) available only in 80-pin package version.

- Wake-up interrupt inputs: Up to 12 port bits available for wake up interrupt function with digital filtering.

- Operating frequency: 32MHz equivalent to 16MHz bus speed for single chip, 32MHz equivalent to 16MHz bus speed in expanded bus modes, option of 9S12C Family: 50MHz equivalent to 25MHz bus speed. All 9S12GC Family members allow a 50MHz operating frequency.

- Internal 2.5V regulator: Supports an input voltage range from 2.97V to 5.5V, low power mode capability, includes low voltage reset (LVR) circuitry, and includes low voltage interrupt (LVI) circuitry.

- 48-pin LQFP, 52-pin LQFP, or 80-pin QFP package: Up to 58 I/O lines with 5V input and drive capability (80-pin package), up to 2 dedicated 5V input only lines (IRQ, XIRQ), 5V 8 A/D converter inputs and 5V I/O.

- Development support: Single-wire background debug™ mode (BDM), on-chip hardware breakpoints, and enhanced DBG12 debug features.

Application Scenarios

The MC9S12C128CFU is commonly used in electronic devices and systems that require microcontrollers, especially in industrial and automotive network applications. It can be utilized in various scenarios such as control systems, automation systems, communication devices, and sensor interfaces.

Comparison

The MC9S12C128CFU offers the following advantages:

• Powerful 16-bit HCS12 core.
• High operating frequency options.
• Wide range of input voltage support.
• Multiple package options for different requirements.
• Development support with debug features.

However, there are a few disadvantages to consider:

• Limited memory capacity with up to 128K bytes of Flash EEPROM and up to 4K bytes of RAM.
• Restricted number of wake-up interrupt inputs.