MC68HC908AP64CB

Microcontrollers Overview

The MC68HC908AP64CB is an 8-bit microcontroller from the M68HC08 family, utilizing the enhanced CPU08 core. It features 62,368 bytes of user-programmable FLASH memory and 2,048 bytes of on-chip RAM. The device supports a maximum internal bus frequency of 8 MHz at 5V operation. Key peripherals include two 16-bit timer modules with PWM capabilities, dual serial communication interfaces (SCI), SPI, SMBus, and an 8-channel 10-bit analog-to-digital converter.

Microcontrollers Feature Summary

• Fully upward-compatible object code with legacy M6805 and M68HC05 families
• Integrated security feature for user program FLASH memory protection
• Dual serial communication interface module with infrared encoder/decoder support
• System management bus (SMBus) version 1.0/1.1 multi-master capability

Microcontrollers Applications

• Industrial control systems requiring legacy code compatibility
• Consumer electronics with sensor input requirements
• Battery-powered devices utilizing low-power stop modes
• Automotive body electronics applications

Microcontrollers Procurement Notes

Verify component authenticity through authorized NXP or Freescale distributors due to discontinued status. Confirm package integrity and pin alignment against datasheet specifications before integration. Ensure programming tools support the specific MON mode requirements for this HC08 architecture variant.

Microcontrollers Selection Notes

Select this model when existing M6805 software assets require migration without full rewriting. Evaluate peripheral needs against the integrated SCI, SPI, and ADC resources. Consider the 8MHz bus speed limit and 5V operating voltage constraints for system design compatibility.

Microcontrollers Part Context

This component belongs to the high-performance M68HC08 family designed for cost-sensitive embedded applications. It bridges legacy Motorola architectures with modern flash-based programmability. The AP series specifically targets applications needing substantial memory capacity within a compact footprint.

Microcontrollers Replacement Considerations

Direct substitutes include MC68HC908AP64A and MC68HC908AP64ACB. Verify package suffix differences and RoHS compliance status when sourcing replacements.