AT49F002NT-90JI

Product Overview

Category

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

Use

This product is primarily used for storing and retrieving data in electronic systems.

Characteristics

• Non-volatile: The AT49F002NT-90JI retains stored data even when power is removed.
• High capacity: With a storage capacity of 2 megabits, it can store a significant amount of data.
• Fast access time: The device offers quick access to stored data, ensuring efficient data retrieval.
• Low power consumption: It operates on low power, making it suitable for battery-powered devices.

Package

The AT49F002NT-90JI is available in a JEDEC-standard 32-lead PLCC package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile data storage in various electronic applications.

Packaging/Quantity

The AT49F002NT-90JI is typically packaged in reels, with each reel containing a specified quantity of devices.

Specifications

• Memory Type: Flash
• Capacity: 2 Megabits (256 Kilobytes)
• Organization: 256K x 8
• Supply Voltage: 4.5V - 5.5V
• Access Time: 90 nanoseconds
• Operating Temperature Range: -40°C to +85°C
• Interface: Parallel

Detailed Pin Configuration

The AT49F002NT-90JI has a total of 32 pins, which are assigned specific functions. The pin configuration is as follows:

1. A0 - Address Input
2. A1 - Address Input
3. A2 - Address Input
4. A3 - Address Input
5. A4 - Address Input
6. A5 - Address Input
7. A6 - Address Input
8. A7 - Address Input
9. VCC - Power Supply
10. A8 - Address Input
11. A9 - Address Input
12. A11 - Address Input
13. A12 - Address Input
14. A13 - Address Input
15. A14 - Address Input
16. A15 - Address Input
17. OE# - Output Enable
18. CE# - Chip Enable
19. WE# - Write Enable
20. I/O0 - Data Input/Output
21. I/O1 - Data Input/Output
22. I/O2 - Data Input/Output
23. I/O3 - Data Input/Output
24. I/O4 - Data Input/Output
25. I/O5 - Data Input/Output
26. I/O6 - Data Input/Output
27. I/O7 - Data Input/Output
28. RY/BY# - Ready/Busy Output
29. RESET# - Reset Input
30. GND - Ground
31. NC - No Connection
32. WP# - Write Protect

Functional Features

• High-speed data access: The AT49F002NT-90JI offers fast access times, allowing for efficient data retrieval.
• Reliable data storage: With its non-volatile memory technology, the device ensures data integrity even during power loss or system shutdowns.
• Easy integration: The parallel interface simplifies the integration of the device into various electronic systems.
• Low power consumption: The AT49F002NT-90JI operates on low power, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention without power supply.
• High capacity allows for storing a significant amount of data.
• Fast access time enables quick data retrieval.
• Low power consumption makes it suitable for battery-powered devices.

Disadvantages

• The parallel interface may require additional circuitry for compatibility with certain systems.
• Limited storage capacity compared to newer memory technologies.

Working Principles

The AT49F002NT-90JI utilizes flash memory technology to store data. It consists of a grid of memory cells, where each cell can store a bit of information. These cells are organized into rows and columns, forming an addressable array. Data is written to and read from these cells by applying appropriate voltage levels to the address and control pins.

During a write operation, the desired data is applied to the input pins, and the device enables the write operation by asserting the write enable (WE#) signal. The data is then stored in the selected memory cells. Reading data involves applying the appropriate address and control signals, which allows the device to output the stored data on the data pins.

Detailed Application Field Plans

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