AT29LV020-20JC

Product Overview

Category

AT29LV020-20JC belongs to the category of non-volatile memory devices.

Use

It is primarily used for storing and retrieving digital information in electronic systems.

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High capacity: The AT29LV020-20JC has a storage capacity of 2 megabits (256 kilobytes).
• Fast access time: It offers a maximum access time of 20 nanoseconds.
• Low power consumption: Designed to operate with minimal power requirements.

Package

The AT29LV020-20JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

This product is an essential component for data storage in various electronic devices, including microcontrollers, embedded systems, and consumer electronics.

Packaging/Quantity

The AT29LV020-20JC is typically sold in reels or trays, with quantities varying based on customer requirements.

Specifications

• Memory Type: Flash
• Organization: 256K x 8 bits
• Supply Voltage: 2.7V - 3.6V
• Operating Temperature Range: -40°C to +85°C
• Access Time: 20 ns
• Erase/Program Suspend & Resume Support: Yes
• Data Retention: 20 years

Detailed Pin Configuration

The AT29LV020-20JC has a total of 32 pins, each serving a specific function. Here is a 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. CE# - Chip Enable Input
18. OE# - Output Enable Input
19. WE# - Write Enable Input
20. RESET# - Reset Input
21. VCC - Power Supply
22. DQ0 - Data Input/Output
23. DQ1 - Data Input/Output
24. DQ2 - Data Input/Output
25. DQ3 - Data Input/Output
26. DQ4 - Data Input/Output
27. DQ5 - Data Input/Output
28. DQ6 - Data Input/Output
29. DQ7 - Data Input/Output
30. GND - Ground
31. NC - No Connection
32. NC - No Connection

Functional Features

• Erase and Program Operations: The AT29LV020-20JC supports both sector erase and byte program operations, allowing for flexible data manipulation.
• Suspend and Resume Support: It provides the ability to suspend and resume erase or program operations, enhancing efficiency in certain applications.
• Automatic Page Write: This feature enables fast programming of consecutive bytes within a page, reducing overall write time.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity suitable for various applications.
• Fast access time allows for quick data retrieval.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited endurance: Flash memory has a finite number of erase/write cycles before degradation.
• Relatively higher cost compared to other types of memory.
• Susceptible to data corruption in case of power surges or electromagnetic interference.

Working Principles

The AT29LV020-20JC utilizes flash memory technology, which is based on the principle of trapping electric charges within a floating gate. These trapped charges represent binary data (0s and 1s). The memory cells can be programmed by applying high voltage to the control gates, allowing electrons to tunnel into the floating gate. Erasing is achieved by removing these trapped charges through an electrical process called Fowler-Nordheim tunneling.

Detailed Application Field Plans

The AT29LV020-20JC finds applications in various fields, including:

1. Microcontrollers: Used for storing firmware, program code, and configuration data.
2. Embedded Systems: Provides non-volatile storage for critical system parameters and boot code.
3. Consumer Electronics: Enables data storage in devices such as digital cameras, set-top boxes, and gaming consoles.

Detailed and Complete Alternative Models

1. AT29LV040A-20JC: Offers double the storage capacity (4 megabits) compared to AT29