AT49F002-90TI

Product Overview

Category: Integrated Circuit (IC)

Use: The AT49F002-90TI is a Flash Memory IC primarily used for data storage and retrieval in electronic devices.

Characteristics: - Non-volatile memory - High-speed read and write operations - Low power consumption - Wide operating voltage range - Durable and reliable

Package: The AT49F002-90TI is available in a 32-pin Thin Small Outline Package (TSOP).

Essence: This Flash Memory IC provides a compact and efficient solution for storing and accessing data in various electronic applications.

Packaging/Quantity: The AT49F002-90TI is typically packaged in reels, with each reel containing a quantity of 250 units.

Specifications

• Memory Size: 2 Megabits (256 Kilobytes)
• Operating Voltage: 2.7V - 3.6V
• Access Time: 90 nanoseconds
• Organization: 256K x 8 bits
• Erase/Write Cycle Endurance: 10,000 cycles
• Data Retention: 20 years

Pin Configuration

The AT49F002-90TI has a total of 32 pins, which are assigned specific functions as follows:

1. A16 - Address Input
2. A14 - 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. VCC - Power Supply
13. OE - Output Enable
14. CE - Chip Enable
15. WE - Write Enable
16. I/O0 - Data Input/Output
17. I/O1 - Data Input/Output
18. I/O2 - Data Input/Output
19. I/O3 - Data Input/Output
20. I/O4 - Data Input/Output
21. I/O5 - Data Input/Output
22. I/O6 - Data Input/Output
23. I/O7 - Data Input/Output
24. RY/BY# - Ready/Busy Output
25. RESET# - Reset Input
26. VSS - Ground
27. A15 - Address Input
28. A13 - Address Input
29. A11 - Address Input
30. A10 - Address Input
31. A9 - Address Input
32. A8 - Address Input

Functional Features

• High-speed data transfer
• Easy integration with various microcontrollers and systems
• Efficient memory management algorithms
• Sector erase and byte programming capabilities
• Protection against accidental write operations
• Reliable data retention even in harsh environmental conditions

Advantages and Disadvantages

Advantages: - Fast read and write operations - Low power consumption - Compact package size - Wide operating voltage range - Durable and reliable performance

Disadvantages: - Limited storage capacity compared to higher-density flash memory options - Relatively higher cost per megabit compared to larger capacity flash memory chips

Working Principles

The AT49F002-90TI utilizes a floating gate transistor technology to store and retrieve digital data. It employs a combination of electrical charges to represent binary information, which can be read, written, and erased electronically.

Detailed Application Field Plans

The AT49F002-90TI is widely used in various electronic devices and applications, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems - Communication devices

Detailed and Complete Alternative Models

1. AT49F002N-90TI: Similar specifications, but with a different package (PLCC)
2. AT49F002T-12JC: Lower access time (12 nanoseconds), different package (PLCC)
3. AT49F002NT-55VI: Higher storage capacity (4 Megabits), similar characteristics, different package (TSOP)

These alternative models offer similar functionality and can be considered as substitutes for the AT49F002-90TI based on specific requirements and compatibility with the target system.

In conclusion, the AT49F002-90TI is a high-performance Flash Memory IC that provides reliable data storage and retrieval capabilities. Its compact size, low power consumption, and wide operating voltage range make it suitable for various electronic applications. However, its limited storage capacity and relatively higher cost per megabit should be taken into consideration when selecting the appropriate memory solution.