AT49F040-70JC

Product Overview

Category: Integrated Circuit (IC)

Use: The AT49F040-70JC is a non-volatile memory IC primarily used for data storage in various electronic devices.

Characteristics: - Non-volatile: Retains stored data even when power is disconnected. - High capacity: Offers 4 megabits (512 kilobytes) of storage space. - Fast access time: Operates at a speed of 70 nanoseconds. - Low power consumption: Efficient energy usage for extended battery life.

Package: The AT49F040-70JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence: This IC serves as a reliable and efficient solution for storing critical data in electronic devices.

Packaging/Quantity: The AT49F040-70JC is typically sold in reels containing multiple units, with each reel holding approximately 1000 ICs.

Specifications

• Memory Type: Flash
• Memory Size: 4 Megabits (512 Kilobytes)
• Access Time: 70 Nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: PLCC-32

Detailed Pin Configuration

The AT49F040-70JC features the following 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. 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. NC
29. NC
30. RESET#
31. RP#
32. WP#

Functional Features

• Non-volatile Memory: The AT49F040-70JC retains stored data even when power is disconnected, ensuring data integrity.
• High-Speed Access: With an access time of 70 nanoseconds, this IC allows for fast read and write operations.
• Flexible Write Modes: The BYTE# pin enables byte-wide or word-wide write operations, providing versatility in data storage.
• Easy Integration: The PLCC package allows for straightforward integration into electronic devices.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures data retention. - High-speed access enables quick data retrieval. - Low power consumption prolongs battery life. - Flexible write modes offer versatility in data storage.

Disadvantages: - Limited storage capacity compared to newer memory technologies. - Relatively larger physical footprint due to the PLCC package.

Working Principles

The AT49F040-70JC utilizes flash memory technology to store data. It employs a combination of floating-gate transistors and charge storage elements to retain information even without power. The IC's control pins (CE#, OE#, WE#, BYTE#) enable read, write, and erase operations, allowing for efficient data manipulation.

Detailed Application Field Plans

The AT49F040-70JC finds applications in various electronic devices that require non-volatile memory for data storage. Some potential application fields include: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

1. AT49F040-90PC: Similar to AT49F040-70JC, but with a faster access time of 90 nanoseconds.
2. AT49F040-12TC: Offers the same capacity and access time as AT49F040-70JC, but operates at a lower supply voltage of 3.3V.

These alternative models provide options for different performance requirements or compatibility with specific electronic systems.

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