MC68HC908LK24CFQ

Product Overview

• Category: Microcontroller
• Use: Embedded systems, control applications
• Characteristics: Low power consumption, high performance, compact size
• Package: QFP (Quad Flat Package)
• Essence: 8-bit microcontroller with integrated peripherals
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Architecture: 8-bit
• Clock Speed: Up to 8 MHz
• Flash Memory: 24 KB
• RAM: 1.5 KB
• Operating Voltage: 2.7V to 5.5V
• I/O Pins: 32
• Timers: 2 x 16-bit, 1 x 8-bit
• Communication Interfaces: SPI, I2C, SCI
• Analog-to-Digital Converter: 10-bit, 8 channels
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MC68HC908LK24CFQ microcontroller has a total of 44 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. VREFH - High reference voltage input for ADC
31. VREFL - Low reference voltage input for ADC
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. VDDA - Analog power supply voltage
41. VSSA - Analog ground
42. OSCIN - Oscillator input
43. OSCOUT - Oscillator output
44. VDDOSC - Oscillator power supply voltage

Functional Features

• Integrated flash memory for program storage
• Multiple communication interfaces for data exchange
• Analog-to-digital converter for sensor interfacing
• Timers for precise timing and event generation
• Low power consumption for battery-powered applications
• Flexible I/O pins for interfacing with external devices

Advantages and Disadvantages

Advantages

• Compact size allows for space-efficient designs
• Low power consumption extends battery life
• Integrated peripherals reduce the need for external components
• Wide operating voltage range enables compatibility with various power sources

Disadvantages

• Limited processing power compared to higher-bit microcontrollers
• Limited memory capacity may restrict complex application development
• Availability of alternative models with more advanced features

Working Principles

The MC68HC908LK24CFQ microcontroller operates based on the Von Neumann architecture. It executes instructions stored in its flash memory, processes data from various sources, and controls connected devices through its I/O pins. The integrated peripherals, such as timers, communication interfaces, and analog-to-digital converter, enable the microcontroller to interact with the external world.

Detailed Application Field Plans

The MC68HC908LK24CFQ microcontroller finds applications in various fields, including:

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