AT49F002-90PC

Product Overview

Category

AT49F002-90PC belongs to the category of Flash Memory Chips.

Use

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

Characteristics

• Non-volatile memory: Retains data even when power is turned off.
• High storage capacity: The AT49F002-90PC has a storage capacity of 2 megabits (256 kilobytes).
• Fast access time: It offers a fast access time of 90 nanoseconds.
• Low power consumption: Consumes minimal power during operation.
• Durable: Can withstand multiple read and write cycles without degradation.

Package

The AT49F002-90PC is available in a 32-pin plastic dual in-line package (PDIP).

Essence

The essence of AT49F002-90PC lies in its ability to provide reliable and high-capacity data storage in various electronic devices.

Packaging/Quantity

The AT49F002-90PC is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Storage Capacity: 2 Megabits (256 Kilobytes)
• Access Time: 90 Nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Minimum 10 years

Detailed Pin Configuration

The AT49F002-90PC has a total of 32 pins, which are configured as follows:

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. 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. RP#
29. RY/BY#
30. RESET#
31. NC
32. NC

Functional Features

• Easy to interface with various microcontrollers and processors.
• Supports both random access and sequential access modes.
• Provides sector erase and chip erase functions for data erasure.
• Offers hardware and software protection mechanisms to prevent unauthorized access or modification of data.

Advantages and Disadvantages

Advantages

• High storage capacity allows for storing large amounts of data.
• Fast access time enables quick retrieval of information.
• Non-volatile memory ensures data retention even during power loss.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited write endurance: The AT49F002-90PC has a finite number of write cycles before it may start to degrade.
• Relatively higher cost compared to other types of memory chips.

Working Principles

The AT49F002-90PC utilizes the principles of flash memory technology. It consists of floating-gate transistors that can store electrical charges, representing binary data (0s and 1s). These charges are trapped within the floating gate, allowing the stored data to remain intact even when power is removed. The data can be read, written, or erased using specific voltage levels applied to the control pins.

Detailed Application Field Plans

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

Detailed and Complete Alternative Models

1. AT49F002N-90PC: Similar to AT49F002-90PC, but with a narrower temperature range (-40°C to +70°C).
2. AT49F002T-90PC: Offers extended temperature range (-40°C to +105°C) for harsh environments.
3. AT49F002NT-90PC: Combines the features of AT49F002N-90PC and AT49F002T-90PC.

These alternative models provide similar functionality and compatibility with the AT49F002-90PC, while offering variations in temperature range and operating conditions.

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