AT28HC256E-90UM/883

Product Overview

Category

The AT28HC256E-90UM/883 belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

It is used for non-volatile storage of data in electronic devices, allowing for reprogramming and erasing of data as needed.

Characteristics

• Non-volatile memory
• Electrically erasable and reprogrammable
• High capacity (256 kilobits)
• Fast access time (90 nanoseconds)

Package

The AT28HC256E-90UM/883 is available in a 28-pin ceramic dual in-line package (DIP).

Essence

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

Packaging/Quantity

The AT28HC256E-90UM/883 is typically packaged in tubes or trays and is available in various quantities depending on the manufacturer's specifications.

Specifications

• Capacity: 256 kilobits
• Access Time: 90 nanoseconds
• Interface: Parallel
• Package Type: 28-pin DIP
• Operating Voltage: 5V

Detailed Pin Configuration

The detailed pin configuration for the AT28HC256E-90UM/883 is as follows: 1. A0-A14: Address Inputs 2. CE: Chip Enable 3. OE: Output Enable 4. WE: Write Enable 5. I/O0-I/O7: Data Input/Output 6. Vcc: Power Supply 7. Vss: Ground

Functional Features

• Electrically erasable and reprogrammable
• High-speed access
• Low power consumption
• Reliable data retention

Advantages and Disadvantages

Advantages

• Flexibility in data reprogramming
• Fast access time
• Non-volatile storage
• Reliable data retention

Disadvantages

• Limited capacity compared to other storage technologies
• Higher cost per bit compared to some alternatives

Working Principles

The AT28HC256E-90UM/883 utilizes a floating gate transistor technology to store data. When programmed, charge is trapped in the floating gate, and when erased, the charge is removed. This allows for non-volatile storage of data that can be reprogrammed as needed.

Detailed Application Field Plans

The AT28HC256E-90UM/883 is commonly used in applications such as: - Embedded systems - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the AT28HC256E-90UM/883 include: - AT29C256 - 25AA256 - M24C256

In conclusion, the AT28HC256E-90UM/883 provides reliable and flexible non-volatile memory storage with fast access times, making it suitable for a wide range of electronic applications.

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