DS89C450-MNL

Product Overview

Category

The DS89C450-MNL belongs to the category of microcontrollers.

Use

It is primarily used for embedded systems and applications that require a high-performance microcontroller.

Characteristics

• High processing speed
• Low power consumption
• Integrated peripherals
• Large memory capacity

Package

The DS89C450-MNL comes in a compact package, suitable for surface mount technology (SMT) assembly.

Essence

The essence of the DS89C450-MNL lies in its ability to provide efficient and reliable control for various electronic devices and systems.

Packaging/Quantity

The DS89C450-MNL is typically packaged in reels or tubes, with a quantity of 1000 units per package.

Specifications

• Microcontroller core: 8051
• Clock frequency: up to 20 MHz
• Flash memory: 64 KB
• RAM: 2 KB
• I/O pins: 32
• Timers/counters: 3
• Serial communication interfaces: UART, SPI, I2C
• Analog-to-digital converter (ADC): 8 channels, 10-bit resolution
• Operating voltage: 2.7V to 5.5V

Detailed Pin Configuration

The DS89C450-MNL has a total of 40 pins, which are assigned specific functions for input/output, power supply, and communication purposes. The detailed pin configuration is as follows:

1. P0.0 - Port 0, Pin 0
2. P0.1 - Port 0, Pin 1
3. P0.2 - Port 0, Pin 2
4. P0.3 - Port 0, Pin 3
5. P0.4 - Port 0, Pin 4
6. P0.5 - Port 0, Pin 5
7. P0.6 - Port 0, Pin 6
8. P0.7 - Port 0, Pin 7
9. VSS - Ground
10. XTAL1 - Crystal Oscillator Input
11. XTAL2 - Crystal Oscillator Output
12. RST - Reset
13. PSEN - Program Store Enable
14. ALE/PROG - Address Latch Enable/Program Pulse
15. EA/VPP - External Access Enable/Programming Voltage Supply
16. P2.0 - Port 2, Pin 0
17. P2.1 - Port 2, Pin 1
18. P2.2 - Port 2, Pin 2
19. P2.3 - Port 2, Pin 3
20. P2.4 - Port 2, Pin 4
21. P2.5 - Port 2, Pin 5
22. P2.6 - Port 2, Pin 6
23. P2.7 - Port 2, Pin 7
24. P3.0 - Port 3, Pin 0
25. P3.1 - Port 3, Pin 1
26. P3.2 - Port 3, Pin 2
27. P3.3 - Port 3, Pin 3
28. P3.4 - Port 3, Pin 4
29. P3.5 - Port 3, Pin 5
30. P3.6 - Port 3, Pin 6
31. P3.7 - Port 3, Pin 7
32. VCC - Power Supply

Functional Features

The DS89C450-MNL offers several functional features that enhance its performance and versatility:

1. High-speed processing: The microcontroller core operates at a clock frequency of up to 20 MHz, enabling rapid execution of instructions.
2. Integrated peripherals: The DS89C450-MNL includes timers/counters, serial communication interfaces (UART, SPI, I2C), and an analog-to-digital converter (ADC), reducing the need for external components.
3. Flash memory: With 64 KB of onboard flash memory, the microcontroller can store program code and data efficiently.
4. Low power consumption: The DS89C450-MNL is designed to minimize power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• High processing speed allows for efficient execution of tasks.
• Integrated peripherals reduce the need for additional components.
• Large memory capacity enables storage of complex programs and data.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited availability of alternative models from other manufacturers.
• May require additional support components for certain applications.
• Steeper learning curve for beginners due to the complexity of the 8051 architecture.

Working Principles