AT49F002AT-55VI

Product Overview

Category: Integrated Circuit (IC)

Use: The AT49F002AT-55VI is a non-volatile memory IC primarily used for data storage and retrieval in various electronic devices.

Characteristics: - Non-volatile: Retains stored data even when power is turned off. - High capacity: Offers 2 megabits (256 kilobytes) of storage space. - Fast access time: Provides quick data retrieval with a maximum access time of 55 nanoseconds. - Low power consumption: Operates efficiently, consuming minimal power during read and write operations.

Package: The AT49F002AT-55VI is available in a 32-pin TSOP (Thin Small Outline Package) form factor. This package ensures easy integration into circuit boards and provides mechanical protection to the IC.

Essence: The essence of the AT49F002AT-55VI lies in its ability to store and retrieve digital information reliably, making it an essential component in many electronic systems.

Packaging/Quantity: The AT49F002AT-55VI is typically sold in reels or tubes containing multiple units, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Memory Type: Flash
• Memory Size: 2 Megabits (256 Kilobytes)
• Access Time: 55 Nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Pin Count: 32
• Package Type: TSOP

Detailed Pin Configuration

The AT49F002AT-55VI features a 32-pin configuration. The pins are assigned specific functions as follows:

1. A16: Address Input
2. A15: Address Input
3. A12: Address Input
4. A7: Address Input
5. A6: Address Input
6. A5: Address Input
7. A4: Address Input
8. A3: Address Input
9. A2: Address Input
10. A1: Address Input
11. A0: Address Input
12. VPP: Programming Voltage Input
13. WE# (Write Enable): Write Control Input
14. OE# (Output Enable): Output Control Input
15. CE# (Chip Enable): Chip Select Input
16. NC: No Connection
17. I/O0: Data Input/Output
18. I/O1: Data Input/Output
19. I/O2: Data Input/Output
20. I/O3: Data Input/Output
21. I/O4: Data Input/Output
22. I/O5: Data Input/Output
23. I/O6: Data Input/Output
24. I/O7: Data Input/Output
25. VCC: Power Supply (+5V)
26. GND: Ground (0V)
27. NC: No Connection
28. NC: No Connection
29. NC: No Connection
30. NC: No Connection
31. NC: No Connection
32. NC: No Connection

Functional Features

The AT49F002AT-55VI offers the following functional features:

• Non-volatile Memory: The IC retains stored data even when power is turned off, ensuring data integrity and persistence.
• Fast Access Time: With a maximum access time of 55 nanoseconds, the IC enables quick retrieval of stored data.
• Flexible Read and Write Operations: The IC supports both read and write operations, allowing for efficient data storage and retrieval.
• Low Power Consumption: The IC operates with low power consumption, making it suitable for battery-powered devices.
• High Capacity: With a storage capacity of 2 megabits, the IC can accommodate a significant amount of data.

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures data persistence. - Fast access time enables quick data retrieval. - Low power consumption prolongs battery life in portable devices. - High storage capacity accommodates large amounts of data.

Disadvantages: - Limited write endurance: The IC has a finite number of write cycles before it may become unreliable. - Higher cost compared to some other memory technologies.

Working Principles

The AT49F002AT-55VI utilizes flash memory technology to store and retrieve digital information. It employs a combination of floating-gate transistors and charge storage mechanisms to retain data even when power is removed. The IC uses address inputs to select specific memory locations and control inputs to perform read and write operations.

During a read operation, the selected memory location's stored data is accessed and made available on the data input/output pins. Write operations involve applying appropriate voltage levels to the programming voltage input (VPP), write enable input