AT49F040A-55PI

Product Overview

Category

AT49F040A-55PI belongs to the category of Flash Memory ICs.

Use

It is primarily used for non-volatile storage in various electronic devices such as computers, mobile phones, and consumer electronics.

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High storage capacity: The AT49F040A-55PI has a storage capacity of 4 megabits (512 kilobytes).
• Fast access time: It offers a fast access time of 55 nanoseconds.
• Low power consumption: Consumes minimal power during operation.
• Reliable: Provides high endurance and data retention capabilities.
• Easy to integrate: Compatible with standard microcontrollers and interface protocols.

Package

The AT49F040A-55PI is available in a plastic DIP (Dual In-line Package) with 32 pins. This package ensures easy integration into circuit boards.

Essence

The essence of AT49F040A-55PI lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity and quick access.

Packaging/Quantity

The AT49F040A-55PI is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Storage Capacity: 4 Megabits (512 Kilobytes)
• Access Time: 55 Nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Interface: Parallel

Detailed Pin Configuration

The AT49F040A-55PI has a total of 32 pins. Here is the detailed pin configuration:

1. A16
2. A15
3. A12
4. A7
5. A6
6. A5
7. A4
8. A3
9. A2
10. A1
11. A0
12. VPP
13. BYTE#
14. OE#
15. WE#
16. CE#
17. I/O0
18. I/O1
19. I/O2
20. I/O3
21. I/O4
22. I/O5
23. I/O6
24. I/O7
25. NC
26. GND
27. VCC
28. RP#
29. RESET#
30. WP#
31. A14
32. A13

Functional Features

• Erase and Program Operations: The AT49F040A-55PI supports both sector erase and byte program operations, allowing flexible data manipulation.
• Hardware Data Protection: It features a Write Protect pin (WP#) that can be used to prevent accidental writes or unauthorized access to the memory.
• High-Speed Read Access: With an access time of 55 nanoseconds, the AT49F040A-55PI enables fast read operations, reducing latency in data retrieval.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High storage capacity for various applications.
• Fast access time allows for quick data retrieval.
• Easy integration with standard microcontrollers and interface protocols.
• Reliable endurance and data retention capabilities.

Disadvantages

• Limited storage capacity compared to newer flash memory technologies.
• Parallel interface may not be suitable for all modern applications.

Working Principles

The AT49F040A-55PI utilizes a floating gate transistor technology to store data. When programming, a high voltage is applied to the control gate, which traps electrons in the floating gate, representing a logical "1." Erasing is achieved by applying a higher voltage to remove the trapped electrons, resetting the memory cell to a logical "0." The stored data can be read by applying appropriate voltages to the control gates and sensing the resulting current flow.

Detailed Application Field Plans

The AT49F040A-55PI finds applications in various electronic devices, including: - Computer motherboards - Mobile phones - Set-top boxes - Printers - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

• AT49F040B-55PI
• AT49F040-70PI
• AT49F040T-90PI
• AT49F040-12TI
• AT49F040-70TI

These alternative models offer similar functionality and characteristics to the AT49F040A-55PI, providing options for different performance requirements or availability.

In conclusion, the AT49F040A-55PI Flash Memory IC offers reliable non-volatile storage with a high storage capacity and fast access time. Its compatibility with standard microcontrollers and interface protocols makes it suitable for various electronic devices. However, it