AT28HC256E-90JU-T

Product Overview

Category

AT28HC256E-90JU-T belongs to the category of high-speed, low-power Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

This product is commonly used in electronic devices for non-volatile data storage. It allows for easy and efficient retrieval of stored information even when power is removed.

Characteristics

• High-speed operation
• Low power consumption
• Non-volatile memory
• Electrically erasable and programmable
• Reliable and durable

Package

AT28HC256E-90JU-T is available in a standard 32-pin plastic J-lead chip carrier package.

Essence

The essence of this product lies in its ability to store and retrieve data reliably and efficiently, making it an essential component in various electronic devices.

Packaging/Quantity

AT28HC256E-90JU-T is typically packaged in reels containing 250 units per reel.

Specifications

• Operating Voltage: 2.7V - 5.5V
• Access Time: 90ns
• Memory Size: 256 kilobits (32 kilobytes)
• Organization: 32K x 8 bits
• Interface: Parallel
• Data Retention: 10 years
• Endurance: 100,000 write cycles

Detailed Pin Configuration

1. A16
2. A15
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. A8
27. A9
28. A11
29. A10
30. A14
31. A13
32. WP#

Functional Features

• High-speed operation allows for quick data access.
• Low power consumption ensures energy efficiency.
• Electrically erasable and programmable memory enables easy updates and modifications.
• Non-volatile storage retains data even when power is removed.
• Reliable and durable design ensures long-term data integrity.

Advantages and Disadvantages

Advantages

• High-speed operation enhances overall system performance.
• Low power consumption prolongs battery life in portable devices.
• Electrically erasable and programmable memory simplifies firmware updates.
• Non-volatile storage ensures data retention during power interruptions.
• Reliable and durable design guarantees long-lasting performance.

Disadvantages

• Limited memory size may not be suitable for applications requiring larger storage capacity.
• Parallel interface may not be compatible with certain modern systems that primarily use serial interfaces.

Working Principles

AT28HC256E-90JU-T utilizes EEPROM technology to store and retrieve data. It consists of a grid of memory cells, each capable of holding one bit of information. The data can be written or erased electrically using specific voltage levels applied to the control pins. When reading data, the stored charge in each memory cell is sensed and converted into digital information.

Detailed Application Field Plans

AT28HC256E-90JU-T finds application in various electronic devices, including but not limited to: 1. Microcontrollers 2. Embedded systems 3. Automotive electronics 4. Industrial control systems 5. Communication devices

Detailed and Complete Alternative Models

1. AT28C256-15PU: Similar EEPROM chip with a slower access time of 150ns.
2. AT28HC256E-90PI: Same EEPROM chip in a different package (PDIP) with the same specifications.

These alternative models provide options based on specific requirements and compatibility with different systems.

In conclusion, AT28HC256E-90JU-T is a high-speed, low-power EEPROM chip used for non-volatile data storage in various electronic devices. Its reliable performance, easy programmability, and durability make it an essential component in many applications.