AT49LV321-90CI

Product Overview

Category

AT49LV321-90CI belongs to the category of non-volatile memory devices.

Use

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

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High capacity: The AT49LV321-90CI has a storage capacity of 32 megabits (4 megabytes).
• Fast access time: It offers a fast access time of 90 nanoseconds.
• Low power consumption: Designed to operate with low power requirements.
• Wide temperature range: Can function reliably in a wide temperature range.

Package

The AT49LV321-90CI is available in a compact plastic package, which ensures protection from external elements and facilitates easy integration into electronic systems.

Essence

The essence of AT49LV321-90CI lies in its ability to provide reliable and high-capacity non-volatile memory storage for various electronic applications.

Packaging/Quantity

This product is typically packaged in reels or trays, depending on the manufacturer's specifications. The quantity per package may vary, but it is commonly available in bulk quantities suitable for industrial production.

Specifications

• Memory Type: Flash
• 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: Plastic

Detailed Pin Configuration

The AT49LV321-90CI features a parallel interface with multiple pins for data, address, control, and power connections. The detailed pin configuration is as follows:

1. VCC: Power supply voltage
2. A0-A20: Address inputs
3. DQ0-DQ15: Data inputs/outputs
4. CE: Chip enable
5. OE: Output enable
6. WE: Write enable
7. RESET: Reset input
8. WP: Write protect
9. VSS: Ground

Functional Features

• High-speed data transfer: The AT49LV321-90CI offers fast read and write operations, enabling efficient data transfer.
• Sector erase capability: It supports sector-based erasure, allowing selective removal of data.
• Built-in programming algorithms: The device incorporates programming algorithms to ensure reliable and accurate data storage.
• Low power consumption: Designed to minimize power consumption, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity enables the storage of large amounts of data.
• Fast access time allows for quick retrieval of information.
• Wide temperature range makes it suitable for various environments.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited rewrite cycles: Flash memory has a finite number of write/erase cycles before degradation.
• Higher cost compared to other types of memory.
• Larger physical size compared to some alternative memory technologies.

Working Principles

The AT49LV321-90CI utilizes flash memory technology, which stores data by trapping electric charges within floating gate transistors. These charges represent binary values (0 or 1) and can be electrically programmed or erased as needed. When reading data, the stored charges are detected and converted back into digital information.

Detailed Application Field Plans

The AT49LV321-90CI finds applications in various electronic systems, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems - Communication devices

Its high capacity, fast access time, and non-volatile nature make it suitable for applications that require reliable and efficient data storage.

Detailed and Complete Alternative Models

• AT49LV321-90CTI: Similar to AT49LV321-90CI, but available in a different package type.
• AT49LV6416-90CI: Offers double the capacity of AT49LV321-90CI (64 Megabits).
• AT45DB321D-SU: A serial flash memory alternative with similar capacity and characteristics.

These alternative models provide options for different packaging requirements or higher storage capacities while maintaining similar functionality.

In conclusion, the AT49LV321-90CI is a non-volatile memory device with high capacity, fast access time, and low power consumption. It finds applications in various electronic systems and offers advantages such as data retention, reliability, and ease of integration. While it has limitations like limited rewrite cycles and higher cost, alternative models provide flexibility in terms of packaging and capacity.