AT49BV040A-90JI

Product Overview

Category

AT49BV040A-90JI belongs to the category of non-volatile memory devices.

Use

This product is primarily used for storing and retrieving data in electronic systems.

Characteristics

• Non-volatile: The stored data is retained even when power is removed.
• High capacity: The AT49BV040A-90JI has a storage capacity of 4 megabits (512 kilobytes).
• Fast access time: It offers a fast access time of 90 nanoseconds.
• Low power consumption: The device operates at low power, making it suitable for battery-powered applications.

Package

The AT49BV040A-90JI is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile data storage in various electronic systems.

Packaging/Quantity

The AT49BV040A-90JI is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Memory Type: Flash
• Organization: 512K x 8 bits
• Supply Voltage: 2.7V - 3.6V
• Operating Temperature Range: -40°C to +85°C
• Interface: Parallel
• Access Time: 90 ns
• Erase/Program Suspend & Resume Support: Yes
• Sector Architecture: Uniform sector architecture with 256-byte sectors

Detailed Pin Configuration

The AT49BV040A-90JI has a total of 32 pins. Here is the detailed pin configuration:

1. A0-A18: Address Inputs
2. DQ0-DQ7: Data Input/Output
3. CE: Chip Enable
4. OE: Output Enable
5. WE: Write Enable
6. RP: Reset/Block Protect
7. VCC: Power Supply
8. GND: Ground

Functional Features

• Fast Read and Write Operations: The AT49BV040A-90JI offers fast read and write operations, allowing for efficient data transfer.
• Sector Erase Capability: It supports sector erase operations, enabling selective erasure of specific memory sectors.
• Suspend & Resume Support: The device allows suspension and resumption of erase or program operations, providing flexibility in programming sequences.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High capacity allows for storing a large amount of data.
• Fast access time enables quick retrieval of information.
• Low power consumption makes it suitable for battery-powered devices.

Disadvantages

• Limited to parallel interface, which may not be compatible with certain modern systems.
• Relatively higher cost compared to other memory technologies.

Working Principles

The AT49BV040A-90JI utilizes flash memory technology to store data. It consists of floating-gate transistors that can trap electrical charges, representing binary data. These charges can be electrically programmed or erased using specific voltage levels. When reading data, the stored charges are detected and converted back into digital information.

Detailed Application Field Plans

The AT49BV040A-90JI finds applications in various electronic systems, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems - Communication devices

Detailed and Complete Alternative Models

1. AT49BV040B-90JI: Similar to AT49BV040A-90JI, but with improved performance characteristics.
2. AT49BV080A-90JI: Double the capacity of AT49BV040A-90JI, offering 8 megabits of storage.
3. AT49BV016A-90JI: Half the capacity of AT49BV040A-90JI, providing 2 megabits of storage.

These alternative models offer different capacities or improved performance while maintaining compatibility with the same pin configuration and package type.

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