AT27LV256A-90JU

Product Overview

Category

AT27LV256A-90JU 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 has a storage capacity of 256 kilobits.
• Fast access time: The product offers a fast access time of 90 nanoseconds.
• Low power consumption: Designed to operate with low power requirements.
• Reliable: Provides reliable data storage and retrieval.

Package

The AT27LV256A-90JU is available in a 32-pin plastic J-lead chip carrier (PLCC) package. This package type ensures easy installation and secure connections.

Essence

The essence of the AT27LV256A-90JU lies in its ability to provide non-volatile memory storage with high capacity and fast access times. It serves as a crucial component in various electronic devices, enabling them to retain important data even during power interruptions.

Packaging/Quantity

The AT27LV256A-90JU is typically packaged in reels or tubes, depending on the manufacturer's specifications. The quantity per package may vary, but it is commonly available in quantities of 100 or more.

Specifications

• Memory Type: Non-volatile
• Capacity: 256 kilobits
• Access Time: 90 nanoseconds
• Supply Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin PLCC

Detailed Pin Configuration

The AT27LV256A-90JU has a total of 32 pins, each serving a specific function. The pin configuration is as follows:

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. I/O0 - Data Input/Output
21. I/O1 - Data Input/Output
22. I/O2 - Data Input/Output
23. I/O3 - Data Input/Output
24. I/O4 - Data Input/Output
25. I/O5 - Data Input/Output
26. I/O6 - Data Input/Output
27. I/O7 - Data Input/Output
28. Vcc - Power Supply
29. GND - Ground
30. NC - No Connection
31. NC - No Connection
32. /WP - Write Protect

Functional Features

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

1. Non-volatile Storage: The product retains data even when power is removed, ensuring data integrity.
2. High-Speed Access: With an access time of 90 nanoseconds, it allows for quick data retrieval and storage.
3. Low Power Consumption: Designed to operate with low power requirements, making it suitable for battery-powered devices.
4. Easy Integration: The 32-pin PLCC package facilitates easy installation and secure connections.
5. Reliable Performance: The AT27LV256A-90JU provides reliable data storage and retrieval, ensuring the integrity of stored information.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power interruptions.
• High capacity allows for storing a significant amount of data.
• Fast access time enables quick data retrieval and storage.
• Low power consumption makes it suitable for energy-efficient applications.
• Reliable performance ensures data integrity.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively higher cost per bit compared to volatile memory options.
• Limited write endurance compared to some other non-volatile memory types.

Working Principles

The AT27LV256A-90JU utilizes a technology called electrically erasable programmable read-only memory (EEPROM). It stores data by trapping electrical charges within its memory cells.