AT49F002-55PI

Product Overview

Category: Integrated Circuit (IC)

Use: The AT49F002-55PI is a non-volatile memory IC primarily used for data storage and retrieval in electronic devices.

Characteristics: - Non-volatile: Retains stored data even when power is turned off. - High capacity: Offers 2 megabits (256 kilobytes) of storage space. - Fast access time: Provides quick read and write operations. - Low power consumption: Efficient energy usage for extended battery life.

Package: The AT49F002-55PI is available in a 32-pin plastic DIP (Dual In-line Package).

Essence: This IC is designed to store and retrieve digital information reliably, making it an essential component in various electronic devices.

Packaging/Quantity: The AT49F002-55PI is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

• Memory Type: Flash
• Organization: 256K x 8 bits
• Supply Voltage: 5V
• Access Time: 55 nanoseconds
• Operating Temperature Range: -40°C to +85°C
• Erase/Write Cycle Endurance: 10,000 cycles

Pin Configuration

The AT49F002-55PI has a total of 32 pins. Here is the 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. 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. RP#
29. NC
30. RESET#
31. A15
32. A13

Functional Features

• Non-volatile Storage: The AT49F002-55PI retains stored data even when power is disconnected, ensuring data integrity.
• Fast Access Time: With an access time of 55 nanoseconds, this IC enables quick read and write operations.
• Flexible Write Modes: The BYTE# pin allows for byte or word programming, providing flexibility in data storage.
• Hardware Reset: The RESET# pin allows for a hardware reset, enabling system initialization.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures data retention. - High storage capacity for various applications. - Fast access time enhances overall system performance. - Low power consumption prolongs battery life.

Disadvantages: - Limited erase/write cycle endurance may require careful management in certain applications. - Availability of alternative models with additional features may limit its competitiveness.

Working Principles

The AT49F002-55PI utilizes flash memory technology to store digital information. It employs a grid of memory cells that can be electrically programmed and erased. When data is written, the memory cells are charged or discharged to represent binary values. During read operations, the stored charges are detected and converted back into digital data.

Detailed Application Field Plans

The AT49F002-55PI finds application in various electronic devices, including but not limited to: - Microcontrollers - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems

Its high storage capacity, fast access time, and non-volatile nature make it suitable for storing firmware, program code, configuration data, and other critical information in these applications.

Detailed and Complete Alternative Models

• AT49F002N-55PI: Similar to AT49F002-55PI but with extended temperature range (-40°C to +125°C).
• AT49F002T-12PI: Offers a faster access time of 12 nanoseconds.
• AT49F002NT-90PI: Combines extended temperature range and faster access time.

These alternative models provide additional options based on specific requirements such as temperature range and speed.

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