AT28C256E-15SU

Product Overview

Category

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

Use

This product is commonly used for non-volatile storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile: The data stored in AT28C256E-15SU remains even when power is removed.
• Electrically erasable: The memory can be erased and reprogrammed electronically.
• High capacity: This chip has a storage capacity of 256 kilobits (32 kilobytes).
• Low power consumption: AT28C256E-15SU operates at low power levels, making it suitable for battery-powered devices.

Package

AT28C256E-15SU is available in a small outline integrated circuit (SOIC) package. This package type provides compactness and ease of integration into electronic circuits.

Essence

The essence of AT28C256E-15SU lies in its ability to store and retrieve digital information reliably and efficiently. It offers a non-volatile memory solution with high capacity and low power consumption.

Packaging/Quantity

AT28C256E-15SU is typically packaged in reels or tubes, containing a specific quantity of chips per package. The exact packaging and quantity may vary depending on the manufacturer and customer requirements.

Specifications

• Operating voltage: 2.7V - 5.5V
• Access time: 150 nanoseconds
• Endurance: 100,000 write cycles
• Data retention: 10 years
• Organization: 32K x 8 bits
• Interface: Parallel

Detailed Pin Configuration

1. A0: Address input
2. A1: Address input
3. A2: Address input
4. A3: Address input
5. A4: Address input
6. A5: Address input
7. A6: Address input
8. A7: Address input
9. VCC: Power supply
10. OE: Output enable
11. CE: Chip enable
12. WE: Write enable
13. I/O0: Data input/output
14. I/O1: Data input/output
15. I/O2: Data input/output
16. I/O3: Data input/output
17. I/O4: Data input/output
18. I/O5: Data input/output
19. I/O6: Data input/output
20. I/O7: Data input/output
21. NC: No connection
22. GND: Ground

Functional Features

• High-speed operation: AT28C256E-15SU offers fast access times, allowing for efficient data retrieval and storage.
• Easy integration: The chip can be easily integrated into existing electronic circuits due to its compact package and standard pin configuration.
• Reliable data retention: The EEPROM technology used in this product ensures long-term data retention even in harsh environmental conditions.
• Flexible programming: AT28C256E-15SU supports both byte-level and page-level programming, providing flexibility in data storage and modification.

Advantages and Disadvantages

Advantages

• Non-volatile memory solution
• High storage capacity
• Low power consumption
• Compact package size
• Easy integration into electronic circuits
• Reliable data retention

Disadvantages

• Limited endurance (100,000 write cycles)
• Relatively slower access time compared to other memory technologies

Working Principles

AT28C256E-15SU utilizes EEPROM technology, which allows for electrically erasing and reprogramming the memory cells. The chip consists of an array of memory cells organized in a grid pattern. Each cell can store one bit of information, represented by the presence or absence of an electrical charge.

To write data, the chip enables the appropriate address and data lines while applying a specific voltage level to the write enable pin. This causes the selected memory cell to be programmed with the desired data. Reading data involves enabling the address and data lines and accessing the stored information from the selected memory cell.

Detailed Application Field Plans

AT28C256E-15SU finds applications in various fields, including:

1. Microcontrollers: Used for storing firmware, configuration settings, and calibration data.
2. Computers: Employed in BIOS chips and other non-volatile memory requirements.
3. Consumer electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles for data storage purposes.
4. Automotive industry: Utilized in electronic control units (ECUs) for storing critical data related to engine management, safety systems, and diagnostics.
5. Industrial automation: Used in programmable logic controllers (PLCs) and other industrial equipment for non-volatile memory storage.

Detailed and Complete Alternative Models

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