AT28C256-15TU

Product Overview

Category

AT28C256-15TU belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is primarily used for non-volatile storage of digital data in various electronic devices.

Characteristics

• Electrically erasable and programmable
• Non-volatile memory
• High storage capacity
• Low power consumption
• Reliable data retention
• Fast read and write operations

Package

AT28C256-15TU is available in a standard 28-pin dual in-line package (DIP).

Essence

The essence of this product lies in its ability to store and retrieve digital data reliably, even when the power supply is disconnected.

Packaging/Quantity

AT28C256-15TU is typically packaged in reels or tubes, with a quantity of 1000 units per package.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Operating Voltage: 5V
• Access Time: 150 nanoseconds
• Erase/Write Cycles: 10,000 minimum
• Data Retention: 10 years minimum
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AT28C256-15TU chip has a total of 28 pins. The pin configuration is as follows:

1. A16
2. A14
3. A12
4. A7
5. A6
6. A5
7. A4
8. A3
9. A2
10. A1
11. A0
12. VCC
13. OE#
14. CE#
15. WE#
16. I/O0
17. I/O1
18. I/O2
19. I/O3
20. I/O4
21. I/O5
22. I/O6
23. I/O7
24. NC
25. GND
26. A15
27. A13
28. A8

Functional Features

• Byte-wise programmable and erasable memory cells
• Individual byte or full chip erase capability
• Automatic write timing
• Hardware and software data protection mechanisms
• High-speed data transfer

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss
• High storage capacity allows for storing large amounts of data
• Low power consumption makes it suitable for battery-powered devices
• Fast read and write operations enhance overall system performance
• Reliable data retention guarantees long-term usability

Disadvantages

• Limited erase/write cycles may restrict frequent reprogramming
• Higher cost compared to other non-volatile memory options
• Relatively larger physical size due to the DIP package

Working Principles

AT28C256-15TU utilizes a combination of electronic circuits and memory cells to store and retrieve digital data. The memory cells can be electrically programmed and erased, allowing for flexible data manipulation.

When writing data, the chip receives input signals through specific pins, which are then stored in the memory cells. Reading data involves accessing the desired memory location and retrieving the stored information.

Detailed Application Field Plans

AT28C256-15TU finds applications in various fields, including: 1. Embedded systems 2. Consumer electronics 3. Automotive industry 4. Industrial automation 5. Communication devices

In embedded systems, this EEPROM chip is commonly used for firmware storage, configuration settings, and data logging purposes. In consumer electronics, it can be found in devices such as smart TVs, set-top boxes, and gaming consoles.

The automotive industry utilizes AT28C256-15TU for storing critical data like engine parameters, vehicle diagnostics, and firmware updates. Industrial automation systems often employ this chip for program storage in programmable logic controllers (PLCs) and human-machine interfaces (HMIs).

Communication devices such as routers, modems, and network switches also benefit from the non-volatile storage capabilities of AT28C256-15TU.

Detailed and Complete Alternative Models

Some alternative models to AT28C256-15TU include: 1. AT28C64B 2. AT28C16 3. AT28C010 4. AT28C040 5. AT28C256-20PU

These alternative models offer different memory capacities, access times, and package options, allowing users to choose the most suitable option based on their specific requirements.

In conclusion, AT28C256-15TU is a versatile EEPROM chip that provides reliable non-volatile storage for various electronic devices. Its high capacity, low power consumption, and fast operation make it an ideal choice for many applications across different industries.