AT28C256-25DM/883-815

Product Overview

Category

AT28C256-25DM/883-815 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 is retained even when power is removed.
• High capacity: The AT28C256-25DM/883-815 has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: It operates at a speed of 250 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 AT28C256-25DM/883-815 is available in a DIP (Dual In-line Package) format. This package type allows for easy integration into various electronic systems.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for digital data.

Packaging/Quantity

The AT28C256-25DM/883-815 is typically packaged in tubes or trays, with each containing a specific quantity of devices. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Operating voltage: 5V
• Access time: 250 ns
• Organization: 32K x 8 bits
• Endurance: 10,000 write cycles
• Data retention: 10 years
• Temperature range: -55°C to +125°C

Detailed Pin Configuration

The AT28C256-25DM/883-815 has a total of 28 pins, which are assigned specific functions. The pin configuration is as follows:

1. A0-A14: Address inputs
2. CE: Chip Enable
3. OE: Output Enable
4. WE: Write Enable
5. VCC: Power supply voltage
6. GND: Ground 7-22: Data I/O (D0-D15) 23-28: NC (No Connection)

Functional Features

• Random access: The AT28C256-25DM/883-815 allows for random access to any location within its memory array, enabling efficient data retrieval.
• Easy interfacing: The device can be easily interfaced with microcontrollers and other digital systems using standard protocols.
• High reliability: With its non-volatile nature and robust design, this product offers high reliability in storing critical data.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High capacity allows for storing a significant amount of information.
• Fast access time enables quick retrieval of data.
• Low power consumption makes it suitable for battery-powered applications.

Disadvantages

• Limited endurance: The device has a finite number of write cycles before it may start to degrade.
• Relatively higher cost compared to volatile memory alternatives.

Working Principles

The AT28C256-25DM/883-815 utilizes EEPROM (Electrically Erasable Programmable Read-Only Memory) technology. It stores data by trapping electric charges within floating gate transistors. These charges represent the binary states of the stored information. The data can be written or erased electrically through specific control signals.

Detailed Application Field Plans

The AT28C256-25DM/883-815 finds applications in various fields, including: 1. Embedded systems: Used for firmware storage in microcontrollers and other embedded devices. 2. Automotive electronics: Employed for storing calibration data, configuration settings, and code in automotive electronic control units (ECUs). 3. Industrial automation: Utilized for storing program code, configuration parameters, and data logging in industrial control systems. 4. Consumer electronics: Used in devices such as digital cameras, printers, and set-top boxes for storing firmware and user settings.

Detailed and Complete Alternative Models

1. AT28C256-12DM/883-815: Similar to the AT28C256-25DM/883-815 but with a slower access time of 120 ns.
2. AT28C256-15DM/883-815: Another variant with an access time of 150 ns.
3. AT28C256-30DM/883-815: Offers a faster access time of 300 ns compared to the original model.

These alternative models provide options with varying access times to suit different application requirements.

In conclusion, the AT28C256-25DM/883-815 is a non-volatile memory device that offers high capacity, fast access time, and low power consumption. It finds applications in various fields and has alternative models with different specifications to cater to diverse needs.