AT27LV020A-12TI

Product Overview

Category

AT27LV020A-12TI 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 storage capacity: The AT27LV020A-12TI has a storage capacity of 2 megabits (256 kilobytes).
• Low power consumption: Designed to operate with minimal power requirements.
• Fast access time: Offers quick read and write operations.
• Reliable: Provides robust data retention and endurance.

Package

The AT27LV020A-12TI is available in a small outline integrated circuit (SOIC) package. This package type ensures easy integration into various electronic systems.

Essence

The essence of the AT27LV020A-12TI lies in its ability to provide reliable and non-volatile storage for electronic devices, enabling them to retain important data even during power interruptions or system shutdowns.

Packaging/Quantity

The AT27LV020A-12TI is typically packaged in reels or tubes, depending on the manufacturer's specifications. The quantity per package varies but commonly ranges from 100 to 1000 units.

Specifications

• Supply voltage: 2.7V - 5.5V
• Operating temperature range: -40°C to +85°C
• Access time: 120 ns
• Organization: 256K x 8 bits
• Erase/write cycles: 10,000 minimum
• Data retention: 20 years minimum

Detailed Pin Configuration

The AT27LV020A-12TI has a total of 32 pins, which are assigned specific functions. 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. VSS - Ground
10. CE - Chip Enable
11. OE - Output Enable
12. WE - Write Enable
13. I/O0 - Data Input/Output
14. I/O1 - Data Input/Output
15. I/O2 - Data Input/Output
16. I/O3 - Data Input/Output
17. I/O4 - Data Input/Output
18. I/O5 - Data Input/Output
19. I/O6 - Data Input/Output
20. I/O7 - Data Input/Output
21. NC - No Connection
22. NC - No Connection
23. NC - No Connection
24. VCC - Power Supply
25. RP - Reset/Program
26. WP - Write Protect
27. A8 - Address Input
28. A9 - Address Input
29. A10 - Address Input
30. A11 - Address Input
31. A12 - Address Input
32. A13 - Address Input

Functional Features

The AT27LV020A-12TI offers several functional features that enhance its usability and performance:

1. Chip Enable (CE): Activates the chip for read/write operations.
2. Output Enable (OE): Enables the output buffer for data retrieval.
3. Write Enable (WE): Allows data to be written into the memory.
4. Reset/Program (RP): Resets the device or initiates programming mode.
5. Write Protect (WP): Protects the memory from accidental writes.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention during power loss.
• High storage capacity suitable for various applications.
• Low power consumption prolongs battery life in portable devices.
• Fast access time allows for quick data retrieval.
• Reliable data retention and endurance ensure long-term usability.

Disadvantages

• Limited erase/write cycles may restrict certain applications requiring frequent data modifications.
• Higher cost compared to volatile memory alternatives.
• Sensitive to electrostatic discharge (ESD) and requires proper handling precautions.

Working Principles

The AT27LV020A-12TI utilizes a technology called electrically erasable programmable read-only memory (EEPROM). It stores data by trapping electrical charges within its memory cells. When reading data, the stored charges are detected and converted into digital information. During write operations, the trapped charges are modified or erased using specific voltage levels.

Detailed Application Field Plans

The AT27LV020A-12TI finds application in various electronic systems