AT49F002-12PC

Product Overview

Category: Integrated Circuit (IC)

Use: The AT49F002-12PC is a 5-volt-only, 2-megabit (262,144 words × 8 bits) flash memory organized as 256K words by 8 bits. It is designed for use in microcontroller systems where high-density, low-power, and non-volatile storage are required.

Characteristics: - Voltage: 5V - Memory Size: 2 Megabits - Organization: 256K words × 8 bits - Low power consumption - Non-volatile storage

Package: The AT49F002-12PC is available in a 32-lead PDIP (Plastic Dual In-line Package) with a width of 0.6 inches.

Essence: The essence of the AT49F002-12PC is its ability to provide high-density, non-volatile storage in microcontroller systems, ensuring reliable data retention even when power is removed.

Packaging/Quantity: The AT49F002-12PC is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

• Supply Voltage: 5V ±10%
• Access Time: 120ns
• Standby Current: 100μA (typical)
• Sector Erase Time: 15ms (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AT49F002-12PC has a total of 32 pins, which are assigned specific functions. Here is the detailed pin configuration:

1. A16
2. A14
3. A12
4. A7
5. A6
6. A5
7. A4
8. A3
9. A2
10. A1
11. A0
12. VCC
13. OE#
14. CE#
15. WE#
16. BYTE#
17. NC
18. DQ0
19. DQ1
20. DQ2
21. DQ3
22. DQ4
23. DQ5
24. DQ6
25. DQ7
26. RY/BY#
27. RESET#
28. RP#
29. VSS
30. A8
31. A9
32. A11

Functional Features

The AT49F002-12PC offers the following functional features:

• High-density storage: With a capacity of 2 megabits, it provides ample space for storing program code and data in microcontroller systems.
• Non-volatile memory: The flash memory retains data even when power is removed, ensuring reliable storage and retrieval of information.
• Low power consumption: The AT49F002-12PC operates at low power levels, making it suitable for battery-powered devices.
• Fast access time: With an access time of 120ns, it allows for quick retrieval of stored information.

Advantages and Disadvantages

Advantages: - High-density storage capacity - Non-volatile memory ensures data retention - Low power consumption - Fast access time

Disadvantages: - Limited to 5V operation - Requires careful handling to prevent damage from electrostatic discharge (ESD)

Working Principles

The AT49F002-12PC utilizes flash memory technology to store and retrieve data. It employs a combination of floating-gate transistors and control circuitry to achieve non-volatile storage. When data is written, charges are trapped in the floating gate, altering the transistor's behavior and preserving the stored information. During read operations, the control circuitry retrieves the stored charges and interprets them as binary data.

Detailed Application Field Plans

The AT49F002-12PC finds applications in various fields, including:

1. Embedded Systems: It is widely used in microcontroller-based embedded systems for storing program code, configuration data, and other critical information.
2. Consumer Electronics: The flash memory is utilized in devices such as digital cameras, MP3 players, and set-top boxes to store firmware, user settings, and media files.
3. Automotive: It is employed in automotive electronics for storing calibration data, firmware updates, and diagnostic information.
4. Industrial Automation: The AT49F002-12PC is suitable for industrial automation systems where non-volatile storage is required for program code, configuration parameters, and historical data logging.

Detailed and Complete Alternative Models

1. AT49F002N-12PC: Similar to the AT49F002-12PC, but with a different package (PLCC) and slightly different pin configuration.
2. AT49F002NT-12PC: A surface-mount version of the AT49F002-12PC, offering the same