AT28C256E-15FM/883

Product Overview

Category

AT28C256E-15FM/883 belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is primarily used for non-volatile data storage in various electronic devices, such as microcontrollers, embedded systems, and communication equipment.

Characteristics

• Non-volatile: The stored data remains even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically.
• High capacity: The AT28C256E-15FM/883 has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: It operates at a speed of 150 nanoseconds.

Package

The AT28C256E-15FM/883 comes in a ceramic package, denoted by the "883" suffix. This package provides excellent protection against environmental factors, making it suitable for harsh operating conditions.

Essence

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

Packaging/Quantity

The AT28C256E-15FM/883 is typically packaged in tubes or trays, with each containing a specific quantity of chips. The exact packaging and 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: -40°C to +85°C
• Erase/Write Cycle Endurance: 10,000 cycles

Detailed Pin Configuration

The AT28C256E-15FM/883 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: Supply Voltage
6. GND: Ground
7. I/O0-I/O7: Data Input/Output

Functional Features

• High-speed operation: The AT28C256E-15FM/883 offers fast access times, allowing for efficient data retrieval and storage.
• Low power consumption: It is designed to minimize power usage, making it suitable for battery-powered devices.
• Reliable data retention: The EEPROM technology ensures that stored data remains intact even in the absence of power.
• Easy integration: The chip can be easily interfaced with microcontrollers and other electronic components.

Advantages and Disadvantages

Advantages

• Non-volatile memory: Data remains intact even during power loss.
• Electrically erasable: Allows for easy reprogramming without the need for additional equipment.
• High capacity: Offers ample storage space for various applications.
• Fast access time: Enables quick data retrieval and processing.

Disadvantages

• Limited endurance: The EEPROM has a finite number of erase/write cycles before it may become unreliable.
• Relatively higher cost: Compared to other types of memory, EEPROMs tend to be more expensive.

Working Principles

The AT28C256E-15FM/883 utilizes EEPROM technology, which combines the benefits of both electrically erasable and programmable read-only memories. It stores data by trapping charges within a floating gate transistor structure. To write or erase data, specific voltage levels are applied to the control pins, enabling the movement of charges within the memory cells.

Detailed Application Field Plans

The AT28C256E-15FM/883 finds application in various fields, including:

1. Microcontrollers: Used for storing firmware, configuration settings, and lookup tables.
2. Embedded Systems: Provides non-volatile storage for critical data and program code.
3. Communication Equipment: Utilized for storing network parameters, device configurations, and firmware updates.

Detailed and Complete Alternative Models

1. AT28C256-15PU: Plastic DIP package, 150 nanoseconds access time.
2. AT28C256-20PC: Plastic DIP package, 200 nanoseconds access time.
3. AT28C256-25DM/883: Ceramic package, 250 nanoseconds access time, military-grade.

These alternative models offer similar functionality and capacity but may differ in package type, access time, and operating temperature range.

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