AT89C55WD-24JU

Product Overview

Category

AT89C55WD-24JU belongs to the category of microcontrollers.

Use

This microcontroller is commonly used in various electronic applications that require embedded control systems.

Characteristics

• High-performance 8-bit CMOS microcontroller
• Low-power consumption
• Wide operating voltage range
• Flash memory for program storage
• In-system programmable
• Multiple I/O ports for versatile connectivity
• Integrated timers and counters for precise timing operations

Package

AT89C55WD-24JU is available in a compact and durable package, suitable for surface mount technology (SMT) applications.

Essence

The essence of AT89C55WD-24JU lies in its ability to provide efficient and reliable control capabilities for electronic devices and systems.

Packaging/Quantity

This microcontroller is typically packaged in reels or tubes, with each reel/tube containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Architecture: 8-bit
• CPU Speed: 24 MHz
• Program Memory Size: 20 KB
• RAM Size: 256 bytes
• Number of I/O Pins: 32
• Operating Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Sheet: Link to datasheet

Detailed Pin Configuration

The AT89C55WD-24JU microcontroller has a total of 40 pins, each serving a specific purpose. Here is a detailed pin configuration:

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. RST - Reset Pin
10. P1.0 - Port 1, Pin 0
11. P1.1 - Port 1, Pin 1
12. P1.2 - Port 1, Pin 2
13. P1.3 - Port 1, Pin 3
14. P1.4 - Port 1, Pin 4
15. P1.5 - Port 1, Pin 5
16. P1.6 - Port 1, Pin 6
17. P1.7 - Port 1, Pin 7
18. XTAL1 - Crystal Oscillator Input
19. XTAL2 - Crystal Oscillator Output
20. GND - Ground Pin
21. VCC - Power Supply Pin
22. P2.0 - Port 2, Pin 0
23. P2.1 - Port 2, Pin 1
24. P2.2 - Port 2, Pin 2
25. P2.3 - Port 2, Pin 3
26. P2.4 - Port 2, Pin 4
27. P2.5 - Port 2, Pin 5
28. P2.6 - Port 2, Pin 6
29. P2.7 - Port 2, Pin 7
30. ALE/PROG - Address Latch Enable/Program Pulse Pin
31. PSEN - Program Store Enable Pin
32. EA/VPP - External Access Enable/Programming Supply Voltage Pin
33. P3.0 - Port 3, Pin 0
34. P3.1 - Port 3, Pin 1
35. P3.2 - Port 3, Pin 2
36. P3.3 - Port 3, Pin 3
37. P3.4 - Port 3, Pin 4
38. P3.5 - Port 3, Pin 5
39. P3.6 - Port 3, Pin 6
40. P3.7 - Port 3, Pin 7

Functional Features

• Flash memory for program storage and easy reprogramming
• Multiple I/O ports for versatile connectivity with external devices
• Integrated timers and counters for precise timing operations
• Serial communication interfaces (UART, SPI, I2C) for data exchange
• Interrupt capability for efficient event handling
• Power-saving modes to optimize energy consumption
• Watchdog timer for system reliability

Advantages and Disadvantages

Adv