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MC68HC908BD48IFB
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MC68HC908BD48IFB

Product Overview

  • Category: Microcontroller
  • Use: Embedded systems, control applications
  • Characteristics: Low power consumption, high performance, compact size
  • Package: Integrated circuit (IC)
  • Essence: Central processing unit (CPU) with built-in memory and peripherals
  • Packaging/Quantity: Available in various package types (e.g., DIP, QFP) with different quantities per package

Specifications

  • Architecture: 8-bit
  • Clock Speed: Up to 8 MHz
  • Memory: 4 KB Flash, 256 bytes RAM
  • Peripherals: Timers, UART, SPI, I2C, ADC, PWM
  • Operating Voltage: 2.7V - 5.5V
  • Operating Temperature: -40°C to +85°C

Detailed Pin Configuration

The MC68HC908BD48IFB microcontroller has a total of 48 pins. The pin configuration is as follows:

  1. VDD: Power supply voltage
  2. VSS: Ground
  3. RESET: Reset input
  4. IRQ: Interrupt request input
  5. PTA0: General-purpose I/O pin
  6. PTA1: General-purpose I/O pin
  7. PTA2: General-purpose I/O pin
  8. PTA3: General-purpose I/O pin
  9. PTA4: General-purpose I/O pin
  10. PTA5: General-purpose I/O pin
  11. PTA6: General-purpose I/O pin
  12. PTA7: General-purpose I/O pin
  13. PTB0: General-purpose I/O pin
  14. PTB1: General-purpose I/O pin
  15. PTB2: General-purpose I/O pin
  16. PTB3: General-purpose I/O pin
  17. PTB4: General-purpose I/O pin
  18. PTB5: General-purpose I/O pin
  19. PTB6: General-purpose I/O pin
  20. PTB7: General-purpose I/O pin
  21. PTC0: General-purpose I/O pin
  22. PTC1: General-purpose I/O pin
  23. PTC2: General-purpose I/O pin
  24. PTC3: General-purpose I/O pin
  25. PTC4: General-purpose I/O pin
  26. PTC5: General-purpose I/O pin
  27. PTC6: General-purpose I/O pin
  28. PTC7: General-purpose I/O pin
  29. VCAP: External capacitor connection for internal voltage regulator
  30. VDDA: Analog power supply voltage
  31. VSSA: Analog ground
  32. AD0: Analog input channel 0
  33. AD1: Analog input channel 1
  34. AD2: Analog input channel 2
  35. AD3: Analog input channel 3
  36. AD4: Analog input channel 4
  37. AD5: Analog input channel 5
  38. AD6: Analog input channel 6
  39. AD7: Analog input channel 7
  40. VREFH: High reference voltage for ADC
  41. VREFL: Low reference voltage for ADC
  42. OSCIN: Oscillator input
  43. OSCOUT: Oscillator output
  44. BKGD: Background debug mode pin
  45. VPP: Programming voltage
  46. RSTO: Reset output
  47. TEST: Test mode pin
  48. XTAL: Crystal oscillator input

Functional Features

  • Low Power Consumption: The MC68HC908BD48IFB microcontroller is designed to operate efficiently with low power consumption, making it suitable for battery-powered applications.
  • High Performance: With its 8-bit architecture and clock speed of up to 8 MHz, the microcontroller offers fast and reliable processing capabilities.
  • Compact Size: The compact package size allows for easy integration into space-constrained designs.
  • Versatile Peripherals: The microcontroller includes a range of peripherals such as timers, UART, SPI, I2C, ADC, and PWM, enabling flexible interfacing with external devices.

Advantages and Disadvantages

Advantages: - Low power consumption - High performance - Compact size - Versatile peripherals

Disadvantages: - Limited memory capacity (4 KB Flash, 256 bytes RAM) - Limited number of I/O pins (48 pins)

Working Principles

The MC68HC908BD48IFB microcontroller operates based on the Von Neumann architecture. It consists of a central processing unit (CPU) that executes instructions stored in the internal Flash memory. The CPU communicates with various peripherals and external devices through dedicated input/output (I/O) pins. The micro

10个与MC68HC908BD48IFB在技术解决方案中的应用相关的常见问题及解答

Sure! Here are 10 common questions and answers related to the application of MC68HC908BD48IFB in technical solutions:

  1. Q: What is MC68HC908BD48IFB? A: MC68HC908BD48IFB is a microcontroller from the HC08 family, designed for embedded systems applications.

  2. Q: What are the key features of MC68HC908BD48IFB? A: Some key features include 8-bit CPU, 48KB flash memory, 2KB RAM, multiple I/O ports, timers, and analog-to-digital converters.

  3. Q: What are the typical applications of MC68HC908BD48IFB? A: MC68HC908BD48IFB is commonly used in automotive electronics, industrial control systems, home automation, and consumer electronics.

  4. Q: How can I program MC68HC908BD48IFB? A: You can program MC68HC908BD48IFB using assembly language or high-level languages like C/C++. Development tools like CodeWarrior IDE or P&E Microcontrollers' software can be used.

  5. Q: Can MC68HC908BD48IFB communicate with other devices? A: Yes, MC68HC908BD48IFB supports various communication protocols such as SPI, I2C, UART, and CAN, allowing it to communicate with other devices.

  6. Q: What is the power supply requirement for MC68HC908BD48IFB? A: MC68HC908BD48IFB typically operates at a voltage range of 2.7V to 5.5V, making it compatible with a wide range of power supplies.

  7. Q: Does MC68HC908BD48IFB have built-in analog-to-digital converters (ADC)? A: Yes, MC68HC908BD48IFB has built-in 10-bit ADCs, which can be used to convert analog signals into digital values for processing.

  8. Q: Can I expand the memory of MC68HC908BD48IFB? A: No, MC68HC908BD48IFB has a fixed amount of flash memory and RAM, which cannot be expanded externally.

  9. Q: How can I debug my code running on MC68HC908BD48IFB? A: You can use in-circuit emulators or debuggers that support MC68HC908BD48IFB to step through your code, set breakpoints, and analyze variables.

  10. Q: Are there any development boards available for MC68HC908BD48IFB? A: Yes, there are development boards specifically designed for MC68HC908BD48IFB, which provide easy prototyping and testing capabilities.

Please note that these answers are general and may vary depending on the specific requirements and documentation provided by the manufacturer.