AT49F002NT-90PI

Product Overview

Category

AT49F002NT-90PI belongs to the category of non-volatile memory devices.

Use

This product is primarily used for storing and retrieving data in electronic systems. It provides reliable and long-term storage capabilities.

Characteristics

• Non-volatile: The AT49F002NT-90PI retains stored data even when power is removed.
• High capacity: This device has a storage capacity of 2 megabits (256 kilobytes).
• Fast access time: The AT49F002NT-90PI offers quick read and write operations, ensuring efficient data transfer.
• Low power consumption: It is designed to consume minimal power during operation.
• Durable: This memory device is resistant to shock and vibration, making it suitable for various applications.
• Wide temperature range: The AT49F002NT-90PI can operate reliably in a wide temperature range, from -40°C to +85°C.

Package

The AT49F002NT-90PI is available in a plastic integrated circuit package. It is commonly found in a 32-pin PDIP (Plastic Dual In-line Package) format.

Essence

The essence of AT49F002NT-90PI lies in its ability to provide non-volatile storage with high capacity and fast access times, making it an essential component in many electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of AT49F002NT-90PI devices. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory Capacity: 2 Megabits (256 Kilobytes)
• Supply Voltage: 4.5V to 5.5V
• Access Time:
  • Read: 90 nanoseconds
  • Program: 10 microseconds
  • Erase: 10 milliseconds
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin PDIP

Detailed Pin Configuration

The AT49F002NT-90PI has a total of 32 pins. The pin configuration is as follows:

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. RY/BY#
27. RESET#
28. VCC
29. GND
30. A8
31. A9
32. A11

Functional Features

• Read Operation: The AT49F002NT-90PI allows for fast and reliable reading of stored data.
• Program Operation: It supports the programming of new data into the memory cells.
• Erase Operation: This device enables the erasure of previously programmed data, making it ready for reprogramming.
• Write Protection: The AT49F002NT-90PI offers write protection features to prevent accidental modification or deletion of stored data.
• Reset Functionality: It includes a reset pin that can be used to initialize the device.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High capacity allows for storing large amounts of data.
• Fast access times facilitate efficient data transfer.
• Low power consumption prolongs battery life in portable devices.
• Durable design makes it suitable for harsh environments.

Disadvantages

• Limited storage capacity compared to newer memory technologies.
• Relatively slower erase times compared to some modern alternatives.
• Requires external programming and erasing circuitry.

Working Principles

The AT49F002NT-90PI utilizes Flash memory technology. It consists of a grid of memory cells that can be electrically programmed and erased. The stored data is retained even when the power supply is disconnected. The device operates by applying specific voltage levels to control pins, enabling read, program, and erase operations.

Detailed Application Field Plans

The AT49F002NT-90PI finds applications in various electronic systems, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems - Communication devices

Detailed and Complete Alternative Models

While the AT49F002NT-90PI offers reliable non-volatile storage, there are alternative models available with similar functionality. Some notable alternatives include: - AT45DB021D: A 2-meg