MC68HC908QY4MDT

Product Overview

• Category: Microcontroller
• Use: Embedded systems, control applications
• Characteristics: Low power consumption, high performance, compact size
• Package: 32-pin QFP (Quad Flat Package)
• Essence: Integrated microcontroller with various peripherals
• Packaging/Quantity: Tape and reel packaging, available in bulk quantities

Specifications

• Architecture: 8-bit
• Clock Speed: Up to 8 MHz
• Flash Memory: 4 KB
• RAM: 256 bytes
• I/O Pins: 27
• Timers: 2
• Communication Interfaces: SPI, I2C, UART
• Analog-to-Digital Converter: 10-bit, 8 channels
• Operating Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MC68HC908QY4MDT microcontroller has a total of 32 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. OSCIN - Oscillator input
31. OSCOUT - Oscillator output
32. VDDA - Analog power supply voltage

Functional Features

• Integrated 8-bit microcontroller with a wide range of peripherals
• Low power consumption, suitable for battery-powered applications
• High-performance CPU with efficient instruction set
• Flexible communication interfaces for data exchange
• On-chip analog-to-digital converter for sensor interfacing
• Timers for precise timing and event generation
• Interrupt capability for real-time response
• Built-in oscillator circuit for clock generation

Advantages and Disadvantages

Advantages

• Compact size and low power consumption make it ideal for portable devices
• Wide operating voltage range allows flexibility in power supply selection
• Rich peripheral set enables versatile application development
• Efficient instruction set enhances overall system performance
• Cost-effective solution for control applications

Disadvantages

• Limited flash memory and RAM capacity may restrict complex program execution
• 8-bit architecture may not be suitable for computationally intensive tasks
• Limited number of I/O pins may limit the connectivity options

Working Principles

The MC68HC908QY4MDT microcontroller operates based on an 8-bit architecture. It executes instructions stored in its flash memory to perform various tasks. The CPU communicates with peripherals through dedicated registers and communication interfaces. The microcontroller can be programmed using a variety of development tools and programming languages. It interacts with external devices through its I/O pins, enabling control and data exchange.

Detailed Application Field Plans

The MC68HC908QY4MDT microcontroller finds applications in various fields, including:

1. Home automation systems
2. Industrial control systems
3. Automotive electronics
4. Medical devices
5. Consumer electronics
6. Internet of Things (IoT) devices
7. Robotics

Alternative Models

Other microcontrollers that can be considered as alternatives to the MC68HC908QY4MDT include:

1. ATmega328P by Microchip Technology
2. PIC16F877A by Microchip Technology
3. STM32