NXP USA Inc.
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MC68HC908JL3CDW
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MC68HC908JL3CDW

Introduction

The MC68HC908JL3CDW is a microcontroller belonging to the HC08 family of 8-bit microcontrollers. This entry provides an overview of its product category, basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category

The MC68HC908JL3CDW belongs to the category of 8-bit microcontrollers, designed for embedded control applications.

Basic Information Overview

  • Use: The MC68HC908JL3CDW is used for embedded control in various applications such as automotive, industrial, consumer, and communication systems.
  • Characteristics: It features low power consumption, high integration, and a rich set of peripherals suitable for a wide range of applications.
  • Package: The MC68HC908JL3CDW is available in a 16-pin SOIC package.
  • Essence: Its essence lies in providing efficient and reliable control in embedded systems.
  • Packaging/Quantity: It is typically supplied in reels with a quantity of 2500 units per reel.

Specifications

  • CPU: 8-bit HCS08 central processor unit
  • Clock Speed: Up to 8 MHz
  • Memory: 4 KB flash, 256 bytes RAM
  • I/O Ports: 13 I/O ports
  • Timers: 2 x 16-bit timers
  • Communication Interfaces: SCI, SPI
  • Operating Voltage: 2.7V to 5.5V
  • Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The MC68HC908JL3CDW has a 16-pin SOIC package with the following pin configuration: 1. VDD 2. PTB0/ICP1/TPM2CH0 3. PTB1/ICP2/TPM2CH1 4. PTB2/OC4/TPM2CH2 5. PTB3/OC5/TPM2CH3 6. PTB4/OC6/TPM2CH4 7. PTB5/OC7/TPM2CH5 8. GND 9. RESET 10. IRQ 11. PTB6/TPM1CH0 12. PTB7/TPM1CH1 13. PTB8/TPM1CH2 14. PTB9/TPM1CH3 15. PTB10/TPM1CH4 16. PTB11/TPM1CH5

Functional Features

  • Analog-to-Digital Converter (ADC): Allows for analog signal conversion for sensor interfacing.
  • Serial Communication Interface (SCI): Enables serial communication with external devices.
  • Timer/Pulse Width Modulation (TPM): Provides timing and PWM generation capabilities.
  • On-Chip Debug Module: Facilitates in-circuit debugging and flash programming.

Advantages and Disadvantages

Advantages

  • Low power consumption
  • Rich peripheral set
  • In-circuit debugging support

Disadvantages

  • Limited memory capacity compared to higher-end microcontrollers
  • Limited processing power for complex algorithms

Working Principles

The MC68HC908JL3CDW operates by executing instructions stored in its flash memory, interacting with peripherals through its I/O ports, and communicating with external devices using its communication interfaces. It processes data and controls external components based on the embedded program's logic.

Detailed Application Field Plans

The MC68HC908JL3CDW finds applications in various fields including: - Automotive: Engine control, body electronics - Industrial: Motor control, automation - Consumer: Home appliances, gaming peripherals - Communication Systems: Modems, routers

Detailed and Complete Alternative Models

Some alternative models to the MC68HC908JL3CDW include: - MC68HC908JL3E - MC68HC908JL3ECPE - MC68HC908JL3ECPV

In conclusion, the MC68HC908JL3CDW is a versatile 8-bit microcontroller suitable for a wide range of embedded control applications, offering a balance of performance, power efficiency, and peripheral integration.

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  1. What is the MC68HC908JL3CDW microcontroller used for?

    • The MC68HC908JL3CDW microcontroller is commonly used in automotive, industrial control, and consumer applications due to its low power consumption and high performance.

  2. What are the key features of the MC68HC908JL3CDW?

    • The MC68HC908JL3CDW features a 8-bit CPU core, flash memory, EEPROM, analog-to-digital converter, and various communication interfaces, making it suitable for a wide range of technical solutions.

  3. How can I program the MC68HC908JL3CDW?

    • The MC68HC908JL3CDW can be programmed using assembly language or C/C++ with appropriate development tools such as an in-circuit emulator or a flash programmer.

  4. What are the typical voltage and current requirements for the MC68HC908JL3CDW?

    • The MC68HC908JL3CDW typically operates at a voltage range of 2.7V to 5.5V and has low power consumption, making it suitable for battery-powered applications.

  5. Can the MC68HC908JL3CDW be used for motor control applications?

    • Yes, the MC68HC908JL3CDW can be used for motor control applications by interfacing with external driver circuits and sensors.

  6. Does the MC68HC908JL3CDW support communication protocols like UART, SPI, and I2C?

    • Yes, the MC68HC908JL3CDW supports UART, SPI, and I2C communication interfaces, enabling seamless integration into systems requiring these protocols.

  7. What are the available development tools and resources for the MC68HC908JL3CDW?

    • Freescale (now NXP) provides a range of development tools, including IDEs, compilers, and debuggers, along with comprehensive documentation and application notes for the MC68HC908JL3CDW.

  8. Is the MC68HC908JL3CDW suitable for temperature sensing applications?

    • Yes, the MC68HC908JL3CDW can be used for temperature sensing applications by interfacing with temperature sensors and utilizing its analog-to-digital converter.

  9. Can the MC68HC908JL3CDW be used in safety-critical applications?

    • The MC68HC908JL3CDW can be used in safety-critical applications with proper design considerations and adherence to relevant industry standards and regulations.

  10. What are some common challenges when using the MC68HC908JL3CDW in technical solutions?

    • Common challenges may include optimizing code size and performance, managing power consumption, and ensuring compatibility with external components and interfaces. Additionally, understanding the specific features and limitations of the microcontroller is crucial for successful implementation.