AT29C257-12JC-T

Product Overview

Category

AT29C257-12JC-T belongs to the category of non-volatile memory devices.

Use

It 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 AT29C257-12JC-T has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: It operates at a speed of 120 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 AT29C257-12JC-T is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

This product is an electrically erasable programmable read-only memory (EEPROM) chip. It allows for both erasing and reprogramming of data, providing flexibility in data storage.

Packaging/Quantity

The AT29C257-12JC-T is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Organization: 32K x 8 bits
• Supply voltage: 5V
• Access time: 120 ns
• Operating temperature range: -40°C to +85°C
• Erase/Write cycles: 10,000 minimum
• Data retention: 20 years minimum

Detailed Pin Configuration

The AT29C257-12JC-T 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. I/O0
17. I/O1
18. I/O2
19. I/O3
20. I/O4
21. I/O5
22. I/O6
23. I/O7
24. VCC
25. GND
26. NC
27. A15
28. A13
29. A11
30. A10
31. A9
32. A8

Functional Features

• Byte-wise programmable: The AT29C257-12JC-T allows individual bytes to be programmed or erased, providing flexibility in data manipulation.
• Hardware and software protection: It offers various protection mechanisms to prevent accidental modification or erasure of stored data.
• High reliability: The device is designed to withstand harsh environmental conditions and has built-in error detection and correction mechanisms.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited erase/write cycles may restrict certain applications requiring frequent data modifications.
• Relatively higher cost compared to other types of memory technologies.

Working Principles

The AT29C257-12JC-T utilizes a combination of electronic circuits and floating gate transistors to store and retrieve digital information. When data needs to be written or erased, specific voltage levels are applied to the appropriate pins, modifying the charge on the floating gates of the memory cells.

Detailed Application Field Plans

The AT29C257-12JC-T finds applications in various electronic systems, including but not limited to: - Embedded systems - Automotive electronics - Industrial control systems - Consumer electronics - Communication devices

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality to the AT29C257-12JC-T: - AT28C256-15PU: 256 kilobit EEPROM with a different package and access time. - M27C256B-10F1: 256 kilobit EPROM with a different package and erase/write cycles.

These alternative models can be considered based on specific requirements and compatibility with the target system.

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