AT29C257-90JI-T

Product Overview

Category

AT29C257-90JI-T belongs to the category of non-volatile memory integrated circuits.

Use

This product is primarily used for data storage in various electronic devices such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile: The AT29C257-90JI-T retains stored data even when power is removed.
• High capacity: This chip has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: It operates at a speed of 90 nanoseconds, allowing for quick data retrieval.
• Low power consumption: The AT29C257-90JI-T is designed to minimize power usage, making it suitable for battery-powered devices.

Package

The AT29C257-90JI-T is available in a 28-pin plastic DIP (Dual In-line Package) format.

Essence

This product is an essential component for storing and retrieving data in electronic systems, ensuring reliable and persistent information storage.

Packaging/Quantity

The AT29C257-90JI-T is typically packaged in reels or tubes, with a quantity of 1000 units per package.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Access Time: 90 nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 28-pin plastic DIP

Detailed Pin Configuration

1. A16
2. A15
3. A12
4. A7
5. A6
6. A5
7. A4
8. A3
9. A2
10. A1
11. A0
12. OE#
13. CE#
14. WE#
15. I/O0
16. I/O1
17. I/O2
18. I/O3
19. I/O4
20. VCC
21. GND
22. I/O5
23. I/O6
24. I/O7
25. A8
26. A9
27. A11
28. A10

Functional Features

• Easy integration: The AT29C257-90JI-T can be easily integrated into existing electronic systems.
• High reliability: It offers reliable data storage and retrieval, ensuring the integrity of stored information.
• Low power consumption: This chip is designed to minimize power usage, extending battery life in portable devices.
• Fast access time: With a speed of 90 nanoseconds, it enables quick data retrieval for efficient system operation.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower access time compared to some newer memory technologies.

Working Principles

The AT29C257-90JI-T utilizes Flash memory technology to store and retrieve data. It employs a combination of floating-gate transistors and charge storage mechanisms to retain information even when power is removed. The memory cells are organized in an array, with each cell capable of storing one bit of data. Accessing and modifying data is achieved through specific control signals provided by the microcontroller or host system.

Detailed Application Field Plans

The AT29C257-90JI-T finds applications in various fields, including: - Microcontrollers: Used for program storage in microcontroller-based systems. - Computers: Employed as non-volatile memory for storing BIOS (Basic Input/Output System) firmware. - Consumer Electronics: Utilized in devices such as digital cameras, printers, and set-top boxes for data storage.

Detailed and Complete Alternative Models

1. AT29C256-90JI-T: Similar to the AT29C257-90JI-T, but with a slightly lower storage capacity of 256 kilobits.
2. AT29C512-90JI-T: Offers double the storage capacity of the AT29C257-90JI-T, with 512 kilobits.
3. AT29C010A-90JI-T: Provides a higher storage capacity of 1 megabit (128 kilobytes).

These alternative models offer different storage capacities to suit specific application requirements.

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