AT27LV256A-90JU-T

Product Overview

Category

AT27LV256A-90JU-T belongs to the category of integrated circuits (ICs) and specifically falls under the non-volatile memory category.

Use

This product is primarily used for storing data in electronic devices, such as microcontrollers, computers, and other digital systems. It provides non-volatile storage, meaning the data remains intact even when power is removed.

Characteristics

• Non-volatile: Retains data even without power supply.
• High capacity: The AT27LV256A-90JU-T has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: With a speed rating of 90 nanoseconds, it offers quick data retrieval.
• Low power consumption: Designed to operate efficiently with minimal power requirements.

Package

The AT27LV256A-90JU-T is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package. This package type ensures easy installation and secure connections.

Essence

The essence of AT27LV256A-90JU-T lies in its ability to provide reliable and non-volatile data storage in various electronic devices. It offers high capacity, fast access times, and low power consumption, making it suitable for a wide range of applications.

Packaging/Quantity

The AT27LV256A-90JU-T is typically packaged in reels or tubes, depending on the manufacturer's specifications. The quantity per package can vary, but it is commonly available in quantities of 100 or more.

Specifications

• Memory Type: Non-volatile
• Capacity: 256 kilobits (32 kilobytes)
• Access Time: 90 nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin PLCC

Detailed Pin Configuration

The AT27LV256A-90JU-T has a total of 32 pins, each serving a specific purpose. Here is the 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. A8 - Address Input
10. A9 - Address Input
11. A10 - Address Input
12. A11 - Address Input
13. A12 - Address Input
14. A13 - Address Input
15. A14 - Address Input
16. A15 - Address Input
17. /OE - Output Enable
18. /CE - Chip Enable
19. /WE - Write Enable
20. DQ0 - Data Input/Output
21. DQ1 - Data Input/Output
22. DQ2 - Data Input/Output
23. DQ3 - Data Input/Output
24. DQ4 - Data Input/Output
25. DQ5 - Data Input/Output
26. DQ6 - Data Input/Output
27. DQ7 - Data Input/Output
28. Vcc - Power Supply (5V)
29. GND - Ground
30. NC - No Connection
31. NC - No Connection
32. /WP - Write Protect

Functional Features

The AT27LV256A-90JU-T offers several functional features that enhance its usability and performance:

1. Non-volatile Storage: The data stored in this memory remains intact even when power is removed.
2. High-Speed Access: With an access time of 90 nanoseconds, it allows for quick retrieval of data.
3. Low Power Consumption: Designed to operate efficiently with minimal power requirements, making it suitable for battery-powered devices.
4. Easy Integration: The 32-pin PLCC package ensures easy installation and secure connections in various electronic systems.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity even during power outages or system failures.
• High capacity allows for storing a significant amount of data.
• Fast access time enables quick retrieval of information.
• Low power consumption makes it suitable for energy-efficient applications.
• Easy integration due to the standardized 32-pin PLCC package.

Disadvantages

• Limited storage capacity compared to newer memory technologies.
• Relatively slower access times compared to modern memory solutions.
• Requires external circuitry for proper interfacing with the target system.

Working Principles

The AT27LV256A-90JU-T utilizes a technology called Electrically Erasable Programmable Read-Only Memory (EEPROM). It stores data by trapping electric charges within its memory cells. These charges represent binary values (0