AT49F040A-55JU

Product Overview

Category

AT49F040A-55JU belongs to the category of non-volatile memory devices.

Use

This product is commonly used for storing and retrieving data in various electronic devices, such as computers, mobile phones, and consumer electronics.

Characteristics

• Non-volatile: The AT49F040A-55JU retains stored data even when power is turned off.
• High capacity: This device has a storage capacity of 4 megabits (512 kilobytes).
• Fast access time: With a maximum access time of 55 nanoseconds, it ensures quick data retrieval.
• Low power consumption: The AT49F040A-55JU operates on low power, making it suitable for battery-powered devices.

Package

The AT49F040A-55JU comes in a standard 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity and fast access.

Packaging/Quantity

The AT49F040A-55JU is typically packaged in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Memory Type: Flash EEPROM
• Capacity: 4 Megabits (512 Kilobytes)
• Access Time: 55 Nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin PLCC

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. WE#
14. OE#
15. CE#
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. NC
32. NC

Functional Features

• Erase and Program Operations: The AT49F040A-55JU supports both sector erase and byte program operations, allowing flexible data manipulation.
• Hardware Data Protection: This device features a hardware protection mechanism to prevent accidental erasure or programming of data.
• Automatic Sleep Mode: When not in use, the AT49F040A-55JU enters a low-power sleep mode, conserving energy.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity for various applications.
• Fast access time enables quick data retrieval.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited write endurance compared to other types of memory.
• Relatively higher cost per bit compared to volatile memory.

Working Principles

The AT49F040A-55JU utilizes flash EEPROM technology to store data. It consists of a grid of memory cells that can be electrically programmed and erased. The stored data is retained even when power is turned off, making it non-volatile. The device operates by applying specific voltage levels to control pins for read, write, and erase operations.

Detailed Application Field Plans

The AT49F040A-55JU finds application in various electronic systems, including: - Personal computers - Mobile phones - Set-top boxes - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

1. AT49F040A-55TU: Similar to AT49F040A-55JU, but in a 32-pin TSOP (Thin Small Outline Package) package.
2. AT49F040A-55TI: Similar to AT49F040A-55JU, but in a 32-pin TQFP (Thin Quad Flat Package) package.
3. AT49F040A-55PI: Similar to AT49F040A-55JU, but in a 32-pin PDIP (Plastic Dual In-line Package) package.

These alternative models offer the same functionality and specifications as the AT49F040A-55JU, providing flexibility in choosing the appropriate package for different system requirements.

In conclusion, the AT49F040A-55JU is a non-volatile memory device with a capacity of 4 megabits. It offers fast access time, low power consumption, and reliable data storage. While it has limitations in write