AT89S52-24JU

Product Overview

Category

AT89S52-24JU 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 microcontroller
• Low-power consumption
• Flash memory for program storage
• In-system programmable
• 40-pin DIP package

Package and Quantity

AT89S52-24JU is available in a 40-pin Dual Inline Package (DIP). It is typically sold in quantities of one unit per package.

Specifications

• Architecture: 8-bit
• CPU Speed: 24 MHz
• Program Memory Size: 8 KB
• RAM Size: 256 bytes
• Data EEPROM Size: 512 bytes
• Number of I/O Pins: 32
• Timers/Counters: 3
• Serial Communication: UART, SPI, I2C

Detailed Pin Configuration

The pin configuration of AT89S52-24JU is as follows:

1. P1.0 - Port 1, Pin 0
2. P1.1 - Port 1, Pin 1
3. P1.2 - Port 1, Pin 2
4. P1.3 - Port 1, Pin 3
5. P1.4 - Port 1, Pin 4
6. P1.5 - Port 1, Pin 5
7. P1.6 - Port 1, Pin 6
8. P1.7 - Port 1, Pin 7
9. RST - Reset Pin
10. P3.0 - Port 3, Pin 0
11. P3.1 - Port 3, Pin 1
12. P3.2 - Port 3, Pin 2
13. P3.3 - Port 3, Pin 3
14. P3.4 - Port 3, Pin 4
15. P3.5 - Port 3, Pin 5
16. P3.6 - Port 3, Pin 6
17. P3.7 - Port 3, Pin 7
18. XTAL1 - Crystal Oscillator Input
19. XTAL2 - Crystal Oscillator Output
20. GND - Ground
21. VCC - Power Supply
22. ALE/PROG - Address Latch Enable/Program Pulse
23. PSEN - Program Store Enable
24. EA/VPP - External Access Enable/Voltage Programming Pin
25. P2.0 - Port 2, Pin 0
26. P2.1 - Port 2, Pin 1
27. P2.2 - Port 2, Pin 2
28. P2.3 - Port 2, Pin 3
29. P2.4 - Port 2, Pin 4
30. P2.5 - Port 2, Pin 5
31. P2.6 - Port 2, Pin 6
32. P2.7 - Port 2, Pin 7
33. RxD - Serial Data Receive
34. TxD - Serial Data Transmit
35. INT0 - External Interrupt 0
36. INT1 - External Interrupt 1
37. T0 - Timer 0 External Input
38. T1 - Timer 1 External Input
39. WR - External Data Memory Write Strobe
40. RD - External Data Memory Read Strobe

Functional Features

• High-performance CPU with a wide range of instructions
• On-chip Flash memory for program storage
• In-system programmable capability allows easy updates of firmware
• Multiple communication interfaces (UART, SPI, I2C) for data exchange
• Timers and counters for precise timing applications
• Interrupts for handling external events
• GPIO pins for general-purpose input/output operations

Advantages and Disadvantages

Advantages

• High-performance microcontroller suitable for various applications
• Low-power consumption for energy-efficient designs
• In-system programmability enables easy firmware updates
• Ample program memory and RAM for complex tasks
• Multiple communication interfaces for versatile connectivity

Disadvantages

• Limited program memory size compared to some other microcontrollers
• Limited RAM size may restrict the complexity of applications
• Lack of built-in peripherals like ADC or DAC may require additional components for certain applications

Working Principles

AT89S52-24JU operates based on the Von Neumann architecture. It executes instructions stored in its Flash memory and interacts with external devices through its I/O pins and communication interfaces. The microcontroller can be programmed using a suitable programming tool, allowing users to develop and