MC68HC11A1CFNE3
8-bit microcontrollers with 256 RAM, A/D converter, and EEPROMMC68HC11A1CFNE3
8-bit microcontrollers with 256 RAM, A/D converter, and EEPROM
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Manufacturer Part # : MC68HC11A1CFNE3
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Package/Case: PLCC-52
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Brand: NXP Semiconductors
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Product Categories : Microcontrollers
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Series : MC68HC11
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MC68HC11A1CFNE3 DataSheet

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MC68HC11A1CFNE3 Details
The MC68HC11A1CFNE3 is a microcontroller unit (MCU) from NXP Semiconductors, offering versatile control and processing capabilities for embedded systems. This MCU features a high-performance CPU, on-chip peripherals, and a flexible memory architecture, making it suitable for a wide range of applications. It is housed in a compact and durable package, providing reliable operation in varied environments.
Pinout
- 1 (PA0): Port A, Pin 0
- 2 (PA1): Port A, Pin 1
- 3 (PA2): Port A, Pin 2
- 4 (PA3): Port A, Pin 3
- 5 (GND): Ground
- 6 (VDD): Power Supply
- 7 (RESET): Reset Pin
- 8 (IRQ): Interrupt Request Pin
(Tip: For detailed pinout information, please refer to the corresponding datasheet.)
Key Features
- High-Performance CPU: Features a powerful CPU for efficient data processing.
- Flexible Memory Architecture: Supports various memory configurations for program and data storage.
- On-Chip Peripherals: Includes a range of integrated peripherals for enhanced functionality.
- Wide Application Range: Suitable for diverse embedded system applications.
- Compact Package: Housed in a compact and durable package for easy integration.
Application
- Embedded Systems: Ideal for embedded control and processing applications.
- Automotive Electronics: Used in automotive systems for control and monitoring functions.
- Industrial Automation: Suitable for industrial automation and control systems.
Where to Use
The MC68HC11A1CFNE3 is a versatile MCU designed for applications requiring robust control and processing capabilities. It is commonly used in embedded systems, automotive electronics, and industrial automation for diverse functions such as data processing, control, and interfacing.
How to Use
Integrate the MC68HC11A1CFNE3 into your embedded system design by connecting the power supply, ground, and I/O pins as per your application's requirements. Utilize the on-chip peripherals and memory resources efficiently for optimal system performance. Follow the recommended usage guidelines provided in the datasheet for seamless integration and operation.
Application Circuit
The application circuit diagram for the MC68HC11A1CFNE3 showcases the recommended connections and components for integrating the MCU into your electronic system. It illustrates the power supply connections, I/O interfaces, and other essential elements for smooth operation.
(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)
Equivalents
- ATmega328P: A comparable microcontroller unit with similar features and performance.
- PIC16F877A: An alternative MCU offering equivalent functionality for embedded systems.
Complementary
The MC68HC11A1CFNE3 can be complemented by external memory modules and peripheral ICs to expand its capabilities for specific applications. Ensure compatibility and proper interfacing when selecting complementary components.
Frequently Asked Questions
Q: What is the clock speed of the MC68HC11A1CFNE3?
A: The MC68HC11A1CFNE3 operates at a maximum clock speed of XX MHz. Refer to the datasheet for detailed timing specifications and configuration options.
Q: Is programming hardware required for the MC68HC11A1CFNE3?
A: Yes, programming hardware such as an in-circuit debugger or programmer is necessary to program the MCU with the desired firmware. Consult the datasheet and manufacturer guidelines for programming instructions.

Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Product Category ! | 8-bit Microcontrollers - MCU | RoHS | Details |
Mounting Style | SMD/SMT | Package / Case | PLCC-52 |
Core | HC11 | Data Bus Width | 8 bit |
Brand | NXP Semiconductors | Height | 3.69 mm |
Length | 19.2 mm | Moisture Sensitive | Yes |
Product Type ! | 8-bit Microcontrollers - MCU | Factory Pack Quantity | 23 |
Subcategory | Microcontrollers - MCU | Width | 19.2 mm |
Unit Weight | 0.104501 oz |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is MC68HC11A1CFNE3?
The MC68HC11A1CFNE3 is a microcontroller unit (MCU) from the HC11 family by NXP Semiconductors. It is a versatile 8-bit MCU with integrated peripherals, suitable for a wide range of embedded applications, including automotive electronics, industrial control systems, and consumer devices.
How Does MC68HC11A1CFNE3 Work?
The MC68HC11A1CFNE3 operates as a central processing unit in embedded systems, executing instructions and controlling various functions. It combines a CPU core, memory, I/O ports, timers, and communication interfaces on a single chip, providing a complete solution for embedded system designs.
How Many Pins does MC68HC11A1CFNE3 have and What are the Functions of the Pinout Configuration?
The MC68HC11A1CFNE3 is available in a 52-pin LQFP (Low-Profile Quad Flat Package). The pinout configuration includes:
- VDD, VSS: Power supply and ground pins, respectively.
- Ports A, B, and D: General-purpose I/O pins.
- IRQ, XIRQ: Interrupt request pins.
- RESET: Reset input pin.
- XTAL, EXTAL: Crystal oscillator input and output pins.
- Serial Communication Ports: UART or SPI pins for serial communication.
What are the Pros and Cons of MC68HC11A1CFNE3?
Pros:
- Integrated Peripherals: Includes a rich set of on-chip peripherals for easier system integration.
- Versatile: Suitable for a wide range of embedded applications due to its flexibility.
- Industry Standard: Based on the popular HC11 architecture with a large user base and available resources.
- On-Chip RAM and ROM: Features on-chip memory for program storage and data manipulation.
- Reliability: Known for its robust performance in harsh environments.
Cons:
- 8-Bit Processing: Limited processing power compared to modern 32-bit or 64-bit MCUs.
- Obsolete: As it is an older MCU, availability and long-term support may be a concern.
- Higher Power Consumption: Consumes more power compared to newer low-power MCU options.
Are There Any Equivalents/Alternatives to MC68HC11A1CFNE3 for Recommendation?
- The ATmega328P from Microchip is a popular 8-bit MCU alternative with a similar feature set.
- Alternatives to the MC68HC11A1CFNE3 include the PIC16F877A from Microchip and the STM8S103F3P6 from STMicroelectronics.
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