MC9S12A256BCFU

Microcontrollers Overview

The MC9S12A256BCFU is a 16-bit microcontroller from the S12A family, utilizing the HCS12 core. It features 256 KB of Flash program memory and 4 KB of EEPROM data storage. The device operates with a maximum clock frequency of 25 MHz and includes an integrated 8-channel, 10-bit Analog-to-Digital Converter (ATD). Communication capabilities are provided by SCI, SPI, IIC, and MSCAN modules. It supports up to 91 I/O lines and is housed in an 80-pin QFP package.

Microcontrollers Feature Summary

• Integrates an HCS12 16-bit CPU core for robust processing performance.
• Includes on-chip voltage regulator functionality for simplified power design.
• Features comprehensive peripheral sets including CAN bus and multiple serial interfaces.

Microcontrollers Applications

• Automotive electronic control units
• Industrial motor control systems
• General-purpose embedded applications

Microcontrollers Procurement Notes

Verify the specific ordering suffix against official NXP documentation to confirm pinout compatibility and package type. Ensure the component meets required environmental operating conditions for your application. Cross-reference the document number 9S12DP256BDGV2/D for accurate electrical specifications and timing characteristics before finalizing procurement.

Microcontrollers Selection Notes

Select this model when a high-density 16-bit MCU with integrated CAN communication is required. The 256 KB Flash capacity accommodates complex firmware logic. Verify that the 80-pin QFP footprint aligns with your PCB layout constraints. Consider the 25 MHz operational speed relative to your system's real-time processing requirements.

Microcontrollers Part Context

This component belongs to the broader S12A microcontroller family designed for automotive and industrial markets. It shares architectural similarities with other derivatives like the MC9S12DP256B series but offers specific memory and pin configurations tailored for cost-sensitive yet feature-rich embedded designs.

Microcontrollers Replacement Considerations

Consult official substitution lists for compatible parts within the S12A or S12X families. Verify pin-to-pin compatibility and register-level software migration efforts before transitioning to alternative part numbers.