MC9S08AC32CFDE

Microcontrollers Overview

The MC9S08AC32CFDE is an 8-bit microcontroller from the S08AC series, utilizing the HCS08 CPU core with a maximum clock frequency of 40 MHz. It features 32 KB of on-chip Flash memory and 2 KB of RAM. The device includes a 10-bit analog-to-digital converter with up to 16 channels, two serial communications interfaces (SCI), one serial peripheral interface (SPI), and an inter-integrated circuit (IIC) module. It provides 38 general-purpose I/O pins and operates within a voltage range of 2.7 V to 5.5 V across an industrial temperature range of -40°C to +85°C. The component is housed in a 48-pin QFN package.

Microcontrollers Feature Summary

• Integrated background debugging system with breakpoint capability for in-circuit debugging.
• Hardware CRC generation module supporting fast cyclic redundancy checks on memory.
• Low-voltage detection with reset or interrupt options for system protection.
• Software-selectable pullups and slew rate control on input/output ports.

Microcontrollers Applications

• Sensorless BLDC motor control applications
• Industrial control systems requiring LIN 2.0 protocol support
• Automotive electronics compliant with SAE J2602 standards

Microcontrollers Procurement Notes

Verify the specific package variant against the datasheet addendum regarding QFN migration from gold wire to copper wire. Confirm that the ordering suffix corresponds to the correct mechanical drawing number. Ensure compatibility with existing PCB footprints if replacing older versions. Check for moisture sensitivity level requirements during storage and handling.

Microcontrollers Selection Notes

Select this model when 32 KB of program memory and 38 I/O lines are required in a compact QFN form factor. Consider the 40 MHz processing speed for real-time control tasks. Evaluate the 10-bit ADC resolution against application signal requirements. Verify that the 2.7 V to 5.5 V operating voltage aligns with the target power supply design.

Microcontrollers Part Context

This component belongs to the NXP S08AC family of 8-bit microcontrollers. It shares architectural similarities with the MC9S08AC48 and MC9S08AC60 models, differing primarily in memory capacity and pin count. The S08AC series is designed for cost-sensitive embedded applications requiring robust peripheral integration and reliable operation in industrial environments.

Microcontrollers Replacement Considerations

MC9S08AC32CFGE

Microcontrollers FAQ

What is the maximum operating frequency of the MC9S08AC32CFDE?

The maximum operating frequency is 40 MHz.

Does the MC9S08AC32CFDE support the LIN 2.0 protocol?

Yes, the integrated SCI modules support the LIN 2.0 protocol.

How many analog input channels are available on this MCU?

The device supports up to 16 analog input channels via its 10-bit ADC.