MC68HC711K4CFN4

Microcontrollers Overview

The MC68HC711K4CFN4 is an 8-bit microcontroller from the HC11 family, manufactured by NXP USA Inc. It features a 24KB EPROM program memory and 768 bytes of RAM. The device operates at a maximum frequency of 4MHz with a supply voltage range of 4.5V to 5.5V. It includes 640 bytes of EEPROM, an 8-channel 8-bit A/D converter, and supports SCI and SPI interfaces. The component is housed in an 84-PLCC package and functions within a temperature range of -40°C to 85°C.

Microcontrollers Feature Summary

• Integrates 24KB EPROM for non-volatile program storage alongside 768 bytes of RAM that remains preserved during standby modes.
• Includes on-chip EEPROM capacity for data retention and supports expanded addressing modes via four programmable chip selects.
• Provides comprehensive peripheral sets including an enhanced serial communications interface, synchronous SPI, and an 8-channel analog-to-digital converter.

Microcontrollers Applications

• Industrial control systems requiring robust I/O management
• Instrumentation devices utilizing internal ADC capabilities
• Embedded applications needing extended address space via external memory expansion

Microcontrollers Procurement Notes

Verify component authenticity through authorized distributors as this part is obsolete. Confirm package integrity for the 84-PLCC form factor. Check RoHS compliance status against specific project requirements due to manufacturing age. Ensure compatibility with existing 5V logic levels and verify pinout alignment for direct replacement scenarios.

Microcontrollers Selection Notes

Select this MCU when legacy HC11 architecture compatibility is required with onboard EPROM. Suitable for designs needing moderate code size without external memory controllers. Consider thermal ratings for industrial environments. Evaluate I/O count against system constraints before finalizing selection.

Microcontrollers Part Context

This component belongs to the MC68HC711 series, representing an evolution of the classic M68HC11 architecture. It offers a balance of processing power and integrated memory for cost-sensitive embedded applications. The CFN4 suffix denotes the specific plastic leaded chip carrier package variant used in surface-mount assemblies.

Microcontrollers Replacement Considerations

Public confirmed substitute part numbers are not available for this obsolete component. Designers should evaluate modern equivalents or adapter solutions carefully.