AT29C256-20TI

Product Overview

Category

AT29C256-20TI belongs to the category of non-volatile memory devices.

Use

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

Characteristics

• Non-volatile: The stored data is retained even when power is removed.
• High capacity: The AT29C256-20TI has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: It operates at a speed of 200 nanoseconds, allowing for quick data retrieval.
• Low power consumption: The device is designed to minimize power usage, making it suitable for battery-powered applications.

Package

The AT29C256-20TI is available in a standard 28-pin DIP (Dual In-line Package) format.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for electronic systems.

Packaging/Quantity

The AT29C256-20TI is typically packaged in tubes or trays, with each package containing a specified quantity of devices.

Specifications

• Organization: 32K x 8 bits
• Supply voltage: 2.7V - 5.5V
• Access time: 200 ns
• Operating temperature range: -40°C to +85°C
• Data retention: 10 years
• Erase/write cycles: 10,000 minimum

Pin Configuration

The AT29C256-20TI has a total of 28 pins, each serving a specific function. The pin configuration is 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. VCC
13. OE#
14. CE#
15. WE#
16. I/O0
17. I/O1
18. I/O2
19. I/O3
20. I/O4
21. I/O5
22. I/O6
23. I/O7
24. NC
25. GND
26. A8
27. A9
28. A11

Functional Features

• Byte-wide operations: The AT29C256-20TI allows for individual byte-level read and write operations.
• Easy interfacing: It can be easily connected to microcontrollers or other digital systems using standard interface protocols.
• Hardware data protection: The device includes hardware features to protect against accidental erasure or modification of stored data.
• High reliability: The AT29C256-20TI is designed to provide reliable operation in various environmental conditions.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• Fast access time enables quick retrieval of information.
• Low power consumption makes it suitable for battery-powered devices.
• High capacity provides ample storage space for various applications.

Disadvantages

• Limited erase/write cycles may restrict certain high-frequency usage scenarios.
• Higher cost compared to volatile memory options.

Working Principles

The AT29C256-20TI utilizes a combination of electronic circuits and semiconductor technology to store and retrieve digital information. It employs a floating-gate transistor structure that allows for non-volatile storage of data. When data is written, electrical charges are trapped in the floating gate, altering the transistor's behavior and preserving the stored information. During read operations, the stored charges are sensed to determine the stored data.

Detailed Application Field Plans

The AT29C256-20TI finds application in various fields, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems - Communication devices

Detailed and Complete Alternative Models

1. AT28C256-20PU: Similar specifications and functionality, available in a different package (DIP).
2. AT29C256-12PC: Lower access time (120 ns), suitable for applications requiring faster data retrieval.
3. AT29C256-90JC: Extended temperature range (-40°C to +125°C), ideal for harsh environmental conditions.

These alternative models offer similar capabilities with slight variations to cater to specific requirements.

In conclusion, the AT29C256-20TI is a non-volatile memory device that provides reliable storage for digital information. With its high capacity, fast access time, and low power consumption, it is well-suited for various applications in different industries. While it has limitations such as limited erase/write cycles and higher cost compared to volatile memory options, its advantages outweigh these drawbacks. The working principle of this device involves the use of floating-gate transistors to store and retrieve data. Additionally, there are alternative models available with slightly different specifications to meet specific application needs