AT28C256-15UM/883

Product Overview

Category

AT28C256-15UM/883 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 remains intact even when power is removed.
• High capacity: The AT28C256-15UM/883 has a storage capacity of 256 kilobits.
• Fast access time: It operates at a speed of 150 nanoseconds.
• Low power consumption: This device is designed to minimize power usage.
• Durable: It can withstand harsh environmental conditions due to its military-grade construction.

Package

The AT28C256-15UM/883 is available in a ceramic package, which provides excellent protection against external factors such as moisture and temperature variations.

Essence

The essence of this product lies in its ability to reliably store and retrieve digital information in various electronic applications.

Packaging/Quantity

The AT28C256-15UM/883 is typically packaged in trays or tubes, with each containing a specific quantity of devices. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Storage Capacity: 256 kilobits (32 kilobytes)
• Access Time: 150 nanoseconds
• Supply Voltage: 5 volts
• Operating Temperature Range: -55°C to +125°C
• Data Retention: 10 years

Detailed Pin Configuration

The AT28C256-15UM/883 has a total of 28 pins, each serving a specific function. 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. I/O0-I/O7: Data Input/Output

Functional Features

• Random Access: The AT28C256-15UM/883 allows for random access to any memory location, enabling efficient data retrieval.
• High-Speed Operation: With an access time of 150 nanoseconds, this device ensures fast and responsive performance.
• Low Power Consumption: It is designed to minimize power usage, making it suitable for battery-powered applications.
• Easy Integration: The AT28C256-15UM/883 can be easily integrated into existing electronic systems due to its standard pin configuration.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity for various applications.
• Fast access time enhances system performance.
• Military-grade construction provides durability in harsh environments.

Disadvantages

• Limited storage capacity compared to newer memory technologies.
• Relatively slower access time compared to modern memory devices.

Working Principles

The AT28C256-15UM/883 utilizes a technology called Electrically Erasable Programmable Read-Only Memory (EEPROM). It stores digital information by trapping electric charges within floating gate transistors. These charges represent the binary states of the stored data (0 or 1). The stored data can be read, written, and erased electronically.

Detailed Application Field Plans

The AT28C256-15UM/883 finds applications in various fields, including: 1. Embedded Systems: Used for firmware storage in microcontrollers and other embedded devices. 2. Automotive Electronics: Stores critical data such as calibration parameters and vehicle settings. 3. Industrial Control Systems: Provides non-volatile storage for program code and configuration data. 4. Communication Systems: Used for storing firmware and configuration data in networking equipment.

Detailed and Complete Alternative Models

Some alternative models to the AT28C256-15UM/883 include: 1. AT28C256-15PI: Similar specifications but with a plastic package. 2. AT28C256-20PU: Higher access time of 200 nanoseconds but lower power consumption. 3. AT28C256-25DM/883: Military-grade version with an extended operating temperature range.

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

In conclusion, the AT28C256-15UM/883 is a non-volatile memory device with a high storage capacity and fast access time. It finds applications in various fields and offers advantages such as durability and low power consumption. However, it has limitations in terms of storage capacity and access time compared to newer memory technologies.