AT49F040A-55JU-T

Product Overview

Category

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

Use

This product is commonly used for storing and retrieving digital information in various electronic devices.

Characteristics

• Non-volatile memory: The stored data is retained even when power is removed.
• High storage capacity: The AT49F040A-55JU-T has a storage capacity of 4 megabits (512 kilobytes).
• Fast access time: It offers a fast access time of 55 nanoseconds, allowing for quick data retrieval.
• Low power consumption: This flash memory IC operates at low power levels, making it suitable for battery-powered devices.

Package

The AT49F040A-55JU-T is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of this product lies in its ability to provide reliable and high-capacity non-volatile storage for electronic devices.

Packaging/Quantity

The AT49F040A-55JU-T is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

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

Detailed Pin Configuration

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

1. A16
2. A14
3. A12
4. A7
5. A6
6. A5
7. A4
8. A3
9. A2
10. A1
11. A0
12. VPP
13. OE#
14. CE#
15. WE#
16. BYTE#
17. NC
18. DQ0
19. DQ1
20. DQ2
21. DQ3
22. DQ4
23. DQ5
24. DQ6
25. DQ7
26. VCC
27. GND
28. RP#
29. RY/BY#
30. RESET#
31. A8
32. A9

Functional Features

• Erase and Program Operations: The AT49F040A-55JU-T supports both sector erase and byte program operations.
• Hardware Data Protection: It provides hardware protection against accidental erasure or programming of data.
• Automatic Sleep Mode: This flash memory IC has an automatic sleep mode to conserve power when not in use.
• High Reliability: The AT49F040A-55JU-T offers high reliability with a minimum endurance of 100,000 program/erase cycles.

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.
• Low power consumption extends battery life in portable devices.
• Hardware data protection prevents accidental data loss.

Disadvantages

• Limited storage capacity compared to newer flash memory technologies.
• Parallel interface may limit compatibility with certain systems.
• Higher cost per megabyte compared to other memory options.

Working Principles

The AT49F040A-55JU-T utilizes the principles of flash memory technology. It stores digital information by trapping electric charges within floating gate transistors. These charges represent binary data (0s and 1s) and can be erased or programmed using specific voltage levels. When data is read, the charges are detected and interpreted as digital information.

Detailed Application Field Plans

The AT49F040A-55JU-T finds applications in various electronic devices, including but not limited to: - Computer motherboards - Set-top boxes - Printers - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality to the AT49F040A-55JU-T: - AT49F040B-55JU-T - AT49F080-70TU - AT45DB041D-SU

These alternative models provide comparable storage capacity, access time, and features, making them suitable replacements for the AT49F040A-55JU-T in different applications.

In conclusion, the AT49F040A-55JU-T flash memory IC offers reliable non-volatile storage with a high capacity of 4 megabits. Its fast access time, low power consumption, and hardware data protection make it suitable for various electronic devices. However, it has limitations in terms of