DS89C440-QNL

Product Overview

Category

The DS89C440-QNL belongs to the category of microcontrollers.

Use

This microcontroller is commonly used in various electronic devices and systems for controlling and processing data.

Characteristics

• High-performance microcontroller with advanced features
• Low power consumption
• Compact size
• Robust design for reliable operation
• Wide operating voltage range

Package

The DS89C440-QNL is available in a compact package, suitable for surface mount technology (SMT) assembly.

Essence

The essence of the DS89C440-QNL lies in its ability to provide efficient control and processing capabilities in a small form factor.

Packaging/Quantity

The DS89C440-QNL is typically packaged in reels or trays, with a quantity of 1000 units per reel/tray.

Specifications

• Microcontroller architecture: 8-bit
• Clock frequency: Up to 16 MHz
• Program memory: 4 KB
• Data memory: 256 bytes
• Input/output pins: 32
• Communication interfaces: UART, SPI, I2C
• Operating voltage range: 2.7V to 5.5V
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The DS89C440-QNL has a total of 32 pins, which are assigned specific functions for input/output, communication, and power supply. The detailed pin configuration is as follows:

1. VDD - Power supply voltage
2. P0.0 - General-purpose I/O pin
3. P0.1 - General-purpose I/O pin
4. P0.2 - General-purpose I/O pin
5. P0.3 - General-purpose I/O pin
6. P0.4 - General-purpose I/O pin
7. P0.5 - General-purpose I/O pin
8. P0.6 - General-purpose I/O pin
9. P0.7 - General-purpose I/O pin
10. RST - Reset pin
11. P1.0 - General-purpose I/O pin
12. P1.1 - General-purpose I/O pin
13. P1.2 - General-purpose I/O pin
14. P1.3 - General-purpose I/O pin
15. P1.4 - General-purpose I/O pin
16. P1.5 - General-purpose I/O pin
17. P1.6 - General-purpose I/O pin
18. P1.7 - General-purpose I/O pin
19. XTAL1 - Crystal oscillator input
20. XTAL2 - Crystal oscillator output
21. PSEN - Program store enable
22. ALE/PROG - Address latch enable/Program pulse input
23. EA/VPP - External access enable/Programming voltage input
24. P2.0 - General-purpose I/O pin
25. P2.1 - General-purpose I/O pin
26. P2.2 - General-purpose I/O pin
27. P2.3 - General-purpose I/O pin
28. P2.4 - General-purpose I/O pin
29. P2.5 - General-purpose I/O pin
30. P2.6 - General-purpose I/O pin
31. P2.7 - General-purpose I/O pin
32. GND - Ground

Functional Features

The DS89C440-QNL offers several functional features that enhance its performance and usability:

• High-speed processing capabilities for efficient data handling
• Built-in communication interfaces for seamless integration with other devices
• Flexible I/O pins for versatile connectivity options
• Low power consumption for energy-efficient operation
• Robust design for reliable performance in various environments

Advantages and Disadvantages

Advantages

• High-performance microcontroller with advanced features
• Compact size allows for space-saving designs
• Wide operating voltage range enables compatibility with different power sources
• Low power consumption prolongs battery life in portable devices
• Robust design ensures reliable operation in challenging conditions

Disadvantages

• Limited program memory capacity (4 KB)
• Limited data memory capacity (256 bytes)
• Relatively small number of I/O pins (32)

Working Principles

The DS89C440-QNL operates based on the principles of a typical microcontroller. It executes instructions stored in its program memory to perform specific tasks. The clock frequency determines the speed at which these instructions are processed. Input/output pins facilitate communication with external devices, enabling data exchange.

Detailed Application Field Plans

The DS89C440-QNL finds applications in various fields, including but not limited to:

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