AT29C257-15JI

Product Overview

Category

AT29C257-15JI belongs to the category of non-volatile memory integrated circuits.

Use

It is primarily used for storing and retrieving digital information in electronic devices.

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High storage capacity: The AT29C257-15JI has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: It operates with a maximum access time of 150 nanoseconds.
• Low power consumption: Designed to minimize power usage during operation.
• Reliable: Offers high endurance and data retention capabilities.

Package

The AT29C257-15JI is available in a 28-pin plastic dual in-line package (PDIP).

Essence

This product is an essential component for storing and accessing data in various electronic systems, including microcontrollers, embedded systems, and consumer electronics.

Packaging/Quantity

The AT29C257-15JI is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Memory Type: Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Organization: 32K x 8 bits
• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Access Time: 150 ns (maximum)
• Data Retention: 10 years (minimum)

Detailed Pin Configuration

The AT29C257-15JI has a total of 28 pins, each serving a specific purpose. The pin configuration is as follows:

1. A16
2. A14
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-wise programmable: Allows individual bytes to be programmed or erased.
• Hardware and software data protection: Provides mechanisms to prevent accidental modification or erasure of stored data.
• High-speed operation: Enables fast read and write operations for efficient data access.
• Automatic sleep mode: Reduces power consumption when the device is idle.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity suitable for various applications.
• Fast access time allows for quick data retrieval.
• Low power consumption prolongs battery life in portable devices.
• Reliable performance with high endurance and data retention capabilities.

Disadvantages

• Limited rewrite cycles: EEPROMs have a finite number of times they can be programmed and erased before failure.
• Relatively higher cost compared to other types of memory.
• Larger physical size compared to newer memory technologies.

Working Principles

The AT29C257-15JI operates based on the principles of electrically erasable programmable read-only memory (EEPROM). It utilizes a combination of transistors and floating gate technology to store and retrieve digital information. The memory cells within the device can be electrically programmed and erased, allowing for non-volatile data storage.

Detailed Application Field Plans

The AT29C257-15JI finds application in various fields, including:

1. Microcontrollers: Used for storing firmware, configuration data, and program code.
2. Embedded Systems: Provides non-volatile storage for critical system parameters and data.
3. Consumer Electronics: Utilized in devices such as digital cameras, set-top boxes, and gaming consoles for data storage.

Detailed and Complete Alternative Models

• AT29C256: Similar specifications with a slightly lower storage capacity of 256 kilobits.
• AT28C256: Compatible alternative with similar functionality and pin configuration.
• AT27C256R: One-time programmable alternative with the same storage capacity.

These alternative models offer similar features and can be considered based on specific application requirements.

In conclusion, the AT29C257-15JI is a non-volatile memory integrated circuit that provides reliable and high-capacity data storage. With its fast access time and low power consumption, it is suitable for various applications in microcontrollers, embedded systems, and consumer electronics. While it has limitations such as limited rewrite cycles and higher cost, alternative models are available to cater to different needs.