AT49BV321T-90TI

Product Overview

Category

AT49BV321T-90TI belongs to the category of non-volatile memory devices.

Use

This product is primarily used for data storage in various electronic devices such as microcontrollers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The AT49BV321T-90TI retains stored data even when power is removed.
• High capacity: It offers a storage capacity of 32 megabits (4 megabytes).
• Fast access time: With a speed of 90 nanoseconds, it ensures quick data retrieval.
• Low power consumption: The device operates at low power levels, making it suitable for battery-powered applications.

Package

The AT49BV321T-90TI is available in a surface-mount TSOP package, which provides ease of integration into circuit boards.

Essence

The essence of this product lies in its ability to store and retrieve data reliably, while offering high capacity and fast access times.

Packaging/Quantity

The AT49BV321T-90TI is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of devices. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Storage Capacity: 32 megabits (4 megabytes)
• Access Time: 90 nanoseconds
• Supply Voltage: 2.7V - 3.6V
• Operating Temperature Range: -40°C to +85°C
• Interface: Parallel
• Package Type: TSOP

Detailed Pin Configuration

The AT49BV321T-90TI features a parallel interface with a total of 48 pins. The pin configuration is as follows:

1. A0-A18: Address Inputs
2. DQ0-DQ15: Data Inputs/Outputs
3. CE: Chip Enable
4. OE: Output Enable
5. WE: Write Enable
6. VCC: Power Supply
7. GND: Ground

Functional Features

• Random Access: The AT49BV321T-90TI allows random access to any memory location, enabling efficient data retrieval.
• Sector Erase: It supports sector erase operations, allowing specific portions of the memory to be erased without affecting other data.
• Programming: The device supports byte or word programming, enabling flexible data storage options.
• Data Protection: The AT49BV321T-90TI incorporates various mechanisms to protect stored data from accidental modification or corruption.

Advantages and Disadvantages

Advantages

• High storage capacity
• Fast access time
• Low power consumption
• Reliable data retention
• Flexible programming options

Disadvantages

• Limited compatibility with certain older systems that do not support parallel interfaces
• Relatively higher cost compared to some alternative memory devices

Working Principles

The AT49BV321T-90TI utilizes flash memory technology for data storage. It employs a combination of floating-gate transistors and charge storage to store binary data. When data is written, charges are trapped in the floating gate, representing the desired information. During read operations, the charges are sensed to retrieve the stored data.

Detailed Application Field Plans

The AT49BV321T-90TI finds applications in various fields, including: 1. Microcontrollers: Used for program storage in microcontroller-based systems. 2. Embedded Systems: Provides non-volatile storage for firmware and configuration data in embedded systems. 3. Consumer Electronics: Used in devices such as digital cameras, set-top boxes, and gaming consoles for data storage.

Detailed and Complete Alternative Models

1. AT45DB321D-SU: A similar flash memory device with 32 megabits capacity, SPI interface, and different package type.
2. AM29F040B-90JC: A parallel flash memory device with 4 megabytes capacity, 90 nanoseconds access time, and PLCC package.

These alternative models offer similar functionality and can be considered as substitutes for the AT49BV321T-90TI in certain applications.

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