AT49F002-90JI

Product Overview

Category

AT49F002-90JI belongs to the category of Flash Memory ICs.

Use

It is primarily used for data storage and retrieval in electronic devices such as computers, smartphones, and embedded systems.

Characteristics

• Non-volatile memory: Retains data even when power is turned off.
• High storage capacity: The AT49F002-90JI has a storage capacity of 2 megabits (256 kilobytes).
• Fast access time: Provides quick read and write operations.
• Low power consumption: Optimized for energy efficiency.
• Wide operating voltage range: Supports operation from 2.7V to 5.5V.

Package

The AT49F002-90JI is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of AT49F002-90JI lies in its ability to store and retrieve digital information reliably and efficiently.

Packaging/Quantity

The AT49F002-90JI is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

• Organization: 256K x 8 bits
• Supply Voltage: 2.7V - 5.5V
• Access Time: 90 nanoseconds
• Operating Temperature Range: -40°C to +85°C
• Erase/Write Cycle Endurance: 10,000 cycles

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. A8
29. A9
30. A11
31. A13
32. A15

Functional Features

• Byte-wide and word-wide operations for flexible data access.
• Sector erase capability for efficient memory management.
• Hardware and software protection mechanisms to prevent unauthorized access.
• Automatic sleep mode to conserve power when not in use.
• Built-in error correction codes (ECC) for enhanced data integrity.

Advantages and Disadvantages

Advantages

• High storage capacity for a wide range of applications.
• Fast access time enables quick data retrieval.
• Low power consumption prolongs battery life in portable devices.
• Robust protection features ensure data security.
• Wide operating voltage range allows compatibility with various systems.

Disadvantages

• Limited erase/write cycle endurance compared to some other flash memory technologies.
• Relatively higher cost per bit compared to traditional non-volatile memories like ROM or EEPROM.

Working Principles

The AT49F002-90JI utilizes the floating gate transistor technology to store digital information. It employs a combination of electric fields and charge trapping to represent binary data as electrical charges within the memory cells. The stored charges can be selectively erased or programmed using specific voltage levels applied to the control pins.

Detailed Application Field Plans

The AT49F002-90JI finds applications in various electronic devices, including but not limited to: - Personal computers - Laptops and notebooks - Smartphones and tablets - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• AT49F002N-90JI
• AT49F002N-12JI
• AT49F002N-55JI
• AT49F002N-70JI
• AT49F002N-90PC

These alternative models offer similar functionality and characteristics, providing options for different system requirements.

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