AT28HC256-12TU

Product Overview

Category

AT28HC256-12TU belongs to the category of high-speed, low-power 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, computers, and consumer electronics.

Characteristics

• High-speed operation
• Low power consumption
• Non-volatile memory
• Large storage capacity
• Reliable data retention
• Easy to interface with other electronic components

Package

AT28HC256-12TU is available in a standard 28-pin Dual In-line Package (DIP).

Essence

The essence of AT28HC256-12TU lies in its ability to store and retrieve digital information reliably, even when the power supply is removed.

Packaging/Quantity

This product is typically packaged in tubes or trays, with each containing a specific quantity of AT28HC256-12TU chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Operating Voltage: 2.7V - 5.5V
• Access Time: 120ns
• Organization: 32K x 8 bits
• Endurance: 100,000 write cycles
• Data Retention: 10 years
• Interface: Parallel

Detailed Pin Configuration

1. A0
2. A1
3. A2
4. A3
5. A4
6. A5
7. A6
8. A7
9. VSS (Ground)
10. CE (Chip Enable)
11. OE (Output Enable)
12. WE (Write Enable)
13. I/O0
14. I/O1
15. I/O2
16. I/O3
17. I/O4
18. I/O5
19. I/O6
20. I/O7
21. NC (No Connection)
22. VCC (Power Supply)
23. NC
24. NC
25. NC
26. NC
27. NC
28. NC

Functional Features

• High-speed read and write operations
• Low power consumption during standby mode
• Easy interfacing with microcontrollers and other electronic components
• Built-in write protection mechanism to prevent accidental data modification
• Reliable data retention even in harsh environmental conditions

Advantages and Disadvantages

Advantages

• Fast access time allows for efficient data retrieval
• Low power consumption helps prolong battery life in portable devices
• Large storage capacity accommodates a wide range of applications
• Easy integration with existing electronic systems
• Reliable data retention ensures long-term usability

Disadvantages

• Limited endurance compared to other non-volatile memory technologies
• Relatively higher cost per bit compared to some alternative memory solutions
• Requires additional circuitry for write protection and voltage regulation

Working Principles

AT28HC256-12TU utilizes EEPROM technology, which allows for electrically erasing and reprogramming the memory cells. The chip consists of an array of floating-gate transistors that can be selectively programmed or erased using electrical signals. When data is written, charges are trapped in the floating gates, altering the transistor's behavior and storing the desired information. During read operations, the stored charges are detected, allowing the retrieval of the stored data.

Detailed Application Field Plans

AT28HC256-12TU finds applications in various fields, including: 1. Embedded systems 2. Automotive electronics 3. Industrial control systems 4. Medical devices 5. Communication equipment 6. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to AT28HC256-12TU include: 1. AT28C256-15PU 2. AT29C256-12PC 3. 24LC256-I/P 4. M93C86-WMN6TP

These models offer similar functionality and can be used as alternatives depending on specific requirements.

In conclusion, AT28HC256-12TU is a high-speed, low-power EEPROM chip that provides reliable non-volatile data storage. Its characteristics, specifications, pin configuration, functional features, advantages, and disadvantages make it suitable for various applications in different fields. Alternative models are available to cater to specific needs within the same product category.