AT28C256-25FM/883-815

Product Overview

The AT28C256-25FM/883-815 belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips. These chips are widely used in electronic devices for storing and retrieving data. The AT28C256-25FM/883-815 is known for its high reliability, low power consumption, and ease of use. It comes in a ceramic package and is available in various quantities to meet different application needs.

Category

Electrically Erasable Programmable Read-Only Memory (EEPROM)

Use

The AT28C256-25FM/883-815 is used for non-volatile storage of data in electronic devices such as microcontrollers, embedded systems, and consumer electronics.

Characteristics

• High reliability
• Low power consumption
• Easy to use

Package

Ceramic package

Essence

Non-volatile data storage

Packaging/Quantity

Available in various packaging options and quantities to suit different application requirements.

Specifications

• Part Number: AT28C256-25FM/883-815
• Memory Size: 256 kilobits
• Operating Voltage: 4.5V to 5.5V
• Access Time: 90ns
• Package Type: Ceramic DIP
• Temperature Range: -55°C to +125°C
• Data Retention: 10 years
• Endurance: 100,000 write cycles

Detailed Pin Configuration

The AT28C256-25FM/883-815 has a standard pin configuration with address, data, control, and power pins. The detailed pinout is as follows:

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

Functional Features

• Byte-wide data access
• Fast read and write operations
• Built-in write protection mechanism
• Low standby current

Advantages

• High reliability and data retention
• Low power consumption
• Easy integration into existing designs
• Wide temperature range for operation

Disadvantages

• Limited write endurance compared to some newer EEPROM technologies
• Relatively slower access times compared to other non-volatile memory types

Working Principles

The AT28C256-25FM/883-815 operates by using electrical signals to store and retrieve data. When a write operation is initiated, the chip's internal circuitry modifies the memory cells to store the new data. During read operations, the stored data is retrieved and made available to the external system.

Detailed Application Field Plans

The AT28C256-25FM/883-815 is well-suited for applications requiring non-volatile storage of configuration settings, calibration data, and firmware in electronic systems. It finds extensive use in microcontroller-based systems, industrial control systems, automotive electronics, and communication devices.

Detailed and Complete Alternative Models

• AT28C256-15PU: Similar specifications with a lower operating voltage range
• AT28C256-20PI: Faster access time with similar capacity and features
• AT28C256-30JI: Extended temperature range with similar performance characteristics

In conclusion, the AT28C256-25FM/883-815 is a reliable and versatile EEPROM chip suitable for a wide range of electronic applications. Its combination of high reliability, low power consumption, and ease of use makes it a popular choice for designers looking for non-volatile memory solutions.