AT49F040-90TC

Product Overview

Category

AT49F040-90TC belongs to the category of Flash Memory ICs.

Use

It is primarily used for storing and retrieving digital information in electronic devices.

Characteristics

• Non-volatile memory: Retains data even when power is turned off.
• High storage capacity: The AT49F040-90TC has a storage capacity of 4 megabits (512 kilobytes).
• Fast access time: It offers a fast access time of 90 nanoseconds.
• Low power consumption: Designed to operate with low power requirements.
• Reliable: Provides high endurance and data retention capabilities.
• Easy integration: Compatible with various microcontrollers and systems.

Package

The AT49F040-90TC is available in a Thin Small Outline Package (TSOP) which ensures compactness and ease of integration into electronic devices.

Essence

The essence of AT49F040-90TC lies in its ability to provide reliable and high-capacity non-volatile memory storage for electronic devices.

Packaging/Quantity

The AT49F040-90TC is typically packaged in reels or tubes, containing a quantity of 250 units per package.

Specifications

• Memory Type: Flash
• Memory Size: 4 Megabits (512 Kilobytes)
• 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 AT49F040-90TC features a 32-pin configuration with the following pin assignments:

1. A0
2. A1
3. A2
4. A3
5. A4
6. A5
7. A6
8. A7
9. A8
10. A9
11. A10
12. A11
13. A12
14. A13
15. A14
16. A15
17. BYTE#
18. WE#
19. OE#
20. CE#
21. RESET#
22. VCC
23. GND
24. DQ0
25. DQ1
26. DQ2
27. DQ3
28. DQ4
29. DQ5
30. DQ6
31. DQ7
32. RP#

Functional Features

• Erase and Program Operations: The AT49F040-90TC supports both sector erase and byte program operations.
• Hardware Data Protection: Provides hardware protection against accidental data modification or erasure.
• Automatic Sleep Mode: Enters a low-power sleep mode when not in use, reducing power consumption.

Advantages and Disadvantages

Advantages

• High storage capacity for data-intensive applications.
• Fast access time allows for quick retrieval of information.
• Low power consumption prolongs battery life in portable devices.
• Reliable endurance and data retention ensure long-term usability.
• Easy integration with various microcontrollers and systems.

Disadvantages

• Limited storage capacity compared to newer flash memory technologies.
• Parallel interface may limit compatibility with certain systems.
• Higher cost per megabit compared to higher-density flash memory options.

Working Principles

The AT49F040-90TC utilizes the principles of flash memory technology. It stores data by trapping electric charges within floating gate transistors. These charges represent binary values (0s and 1s) and can be electrically programmed or erased as needed. The stored data can be accessed and manipulated through the parallel interface provided by the IC.

Detailed Application Field Plans

The AT49F040-90TC finds applications in various electronic devices and systems, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems - Communication devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the AT49F040-90TC include: - AT49F080-90TC: 8 Megabit Flash Memory IC with a 90 nanosecond access time. - AT49F016-90TC: 16 Megabit Flash Memory IC with a 90 nanosecond access time. - AT49F002-90TC: 2 Megabit Flash Memory IC with a 90 nanosecond access time.

These alternative models provide different storage capacities while maintaining similar characteristics and performance specifications.

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