AT49BV040A-90VU

Product Overview

Category

AT49BV040A-90VU 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-90VU 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-90VU is available in a standard 32-pin plastic TSOP (Thin Small Outline 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-90VU 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
• Data Retention: 20 years
• Erase/Write Cycle Endurance: 10,000 cycles

Detailed Pin Configuration

The AT49BV040A-90VU 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. VCC - Power Supply
10. A8 - Address Input
11. A9 - Address Input
12. A10 - Address Input
13. A11 - Address Input
14. A12 - Address Input
15. A13 - Address Input
16. A14 - Address Input
17. A15 - Address Input
18. CE# - Chip Enable Input
19. OE# - Output Enable Input
20. WE# - Write Enable Input
21. NC - No Connection
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. RP# - Ready/Busy Output
32. RESET# - Reset Input

Functional Features

• Fast Read Access: The AT49BV040A-90VU offers a fast access time of 90 nanoseconds, allowing for quick retrieval of stored data.
• Sector Erase Capability: This device supports sector erase operations, enabling selective erasure of specific memory sectors.
• Low Power Consumption: The product operates at low power, making it suitable for battery-powered applications.
• Automatic Page Write: It supports automatic page write operations, simplifying the programming process.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High storage capacity of 4 megabits.
• Fast access time allows for efficient data retrieval.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited erase/write endurance of 10,000 cycles.
• Higher cost compared to volatile memory alternatives.

Working Principles

The AT49BV040A-90VU utilizes flash memory technology to store data. It consists of a grid of memory cells that can be electrically programmed and erased. The device uses a combination of transistors and floating gate structures to trap and store electrical charges, representing the binary data.

During read operations, the stored charges are sensed and amplified to retrieve the stored data. Write and erase operations involve applying specific voltage levels to the memory cells, modifying the charge trapped in the floating gates.

Detailed Application Field Plans

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

Its non-volatile nature, high capacity, and fast access time make it suitable for storing firmware, configuration data, and other critical information in these applications.

Detailed and Complete Alternative Models

Some alternative models