MC908GR48AVFAE

Product Overview

• Category: Microcontroller
• Use: Embedded systems, control applications
• Characteristics: High-performance, low-power consumption, compact size
• Package: 48-pin QFP (Quad Flat Package)
• Essence: Integrated circuit for controlling and managing electronic devices
• Packaging/Quantity: Tape and reel packaging, available in bulk quantities

Specifications

• Architecture: 8-bit
• Clock Speed: Up to 8 MHz
• Flash Memory: 48 KB
• RAM: 2 KB
• Operating Voltage: 2.7V to 5.5V
• I/O Pins: 38
• Communication Interfaces: SPI, I2C, UART
• Timers: 4-channel 16-bit timers
• Analog-to-Digital Converter: 10-bit resolution, 8 channels

Pin Configuration

The MC908GR48AVFAE microcontroller has a total of 48 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. VSS - Ground
3. PTA0 - General-purpose I/O pin
4. PTA1 - General-purpose I/O pin
5. PTA2 - General-purpose I/O pin
6. PTA3 - General-purpose I/O pin
7. PTA4 - General-purpose I/O pin
8. PTA5 - General-purpose I/O pin
9. PTA6 - General-purpose I/O pin
10. PTA7 - General-purpose I/O pin
11. RESET - Reset pin
12. PTB0 - General-purpose I/O pin
13. PTB1 - General-purpose I/O pin
14. PTB2 - General-purpose I/O pin
15. PTB3 - General-purpose I/O pin
16. PTB4 - General-purpose I/O pin
17. PTB5 - General-purpose I/O pin
18. PTB6 - General-purpose I/O pin
19. PTB7 - General-purpose I/O pin
20. PTC0 - General-purpose I/O pin
21. PTC1 - General-purpose I/O pin
22. PTC2 - General-purpose I/O pin
23. PTC3 - General-purpose I/O pin
24. PTC4 - General-purpose I/O pin
25. PTC5 - General-purpose I/O pin
26. PTC6 - General-purpose I/O pin
27. PTC7 - General-purpose I/O pin
28. VDDA - Analog power supply voltage
29. VREFH - High reference voltage for ADC
30. VREFL - Low reference voltage for ADC
31. AD0 - Analog input channel 0
32. AD1 - Analog input channel 1
33. AD2 - Analog input channel 2
34. AD3 - Analog input channel 3
35. AD4 - Analog input channel 4
36. AD5 - Analog input channel 5
37. AD6 - Analog input channel 6
38. AD7 - Analog input channel 7
39. VSSA - Analog ground
40. IRQ - Interrupt request pin
41. XTAL - Crystal oscillator input
42. EXTAL - Crystal oscillator output
43. VCAP - External capacitor connection for the internal voltage regulator
44. VDDPLL - Power supply voltage for the internal PLL
45. VSSPLL - Ground for the internal PLL
46. OSC2 - Oscillator output
47. OSC1 - Oscillator input
48. VBAT - Backup battery voltage input

Functional Features

• High-performance 8-bit microcontroller suitable for control applications
• Low-power consumption for energy-efficient designs
• Compact size enables integration into space-constrained systems
• Wide operating voltage range allows flexibility in power supply options
• Multiple communication interfaces (SPI, I2C, UART) for easy connectivity with other devices
• On-chip timers for precise timing and event management
• Built-in analog-to-digital converter for sensor interfacing and data acquisition

Advantages and Disadvantages

Advantages

• High performance for demanding control applications
• Low power consumption extends battery life in portable devices
• Compact size saves board space in embedded systems
• Versatile communication interfaces simplify device integration
• On-chip peripherals reduce external component count and cost

Disadvantages

• Limited processing power compared to higher-bit microcontrollers
• Restricted memory capacity for complex applications
• Limited number of I/O pins may limit the number of connected devices

Working Principles

The MC908GR48AVFAE microcontroller operates based on an 8-bit architecture. It executes instructions stored in its flash memory and interacts with external devices through