AT28C256-25JC

Product Overview

Category

AT28C256-25JC 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: The stored data is retained even when power is removed.
• High capacity: The AT28C256-25JC has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: It operates at a speed of 250 nanoseconds.
• Low power consumption: It requires minimal power to operate efficiently.

Package

The AT28C256-25JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

This product is an essential component for storing critical data in various electronic systems, ensuring data integrity and reliability.

Packaging/Quantity

The AT28C256-25JC 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: 250 ns
• Data Retention: 10 years
• Endurance: 100,000 write cycles

Detailed Pin Configuration

The AT28C256-25JC has a total of 32 pins, each serving a specific purpose. Here is a detailed pin configuration:

1. A0-A14: Address Inputs
2. CE: Chip Enable
3. OE: Output Enable
4. WE: Write Enable
5. VCC: Power Supply
6. GND: Ground
7. DQ0-DQ7: Data Input/Output

Functional Features

• Byte-wise programmable: Allows individual bytes to be programmed or erased.
• High-speed operation: Enables fast read and write operations.
• Hardware and software data protection: Provides security for stored information.
• Low-power standby mode: Reduces power consumption when not in use.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited endurance compared to other memory technologies.
• Relatively higher cost per bit compared to some alternatives.
• Requires additional circuitry for programming and erasing.

Working Principles

The AT28C256-25JC utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It uses a combination of transistors and floating gate structures to store and retrieve digital information.

Detailed Application Field Plans

The AT28C256-25JC finds application 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

1. AT28C256-15PU: Similar to AT28C256-25JC but with a faster access time of 150 ns.
2. AT28C256-12PC: Similar to AT28C256-25JC but operates at a lower voltage range of 4.5V to 5.0V.
3. AT28C256-30DM/883: A military-grade version with extended temperature range and enhanced reliability.

These alternative models offer different specifications and features to cater to specific application requirements.

In conclusion, the AT28C256-25JC is a non-volatile memory integrated circuit with high capacity, fast access time, and low power consumption. It finds application in various electronic systems and offers advantages such as data retention, reliability, and security. However, it also has limitations in terms of endurance and cost. Alternative models provide options with different specifications to suit specific needs.