AT29C040A-12TU

Product Overview

Category

AT29C040A-12TU belongs to the category of non-volatile memory devices.

Use

This product is primarily used for storing and retrieving digital information in electronic systems.

Characteristics

• Non-volatile: The stored data is retained even when power is removed.
• High capacity: The AT29C040A-12TU has a storage capacity of 4 megabits (512 kilobytes).
• Fast access time: It operates at a speed of 120 nanoseconds, allowing for quick data retrieval.
• Low power consumption: The device is designed to minimize power usage, making it suitable for battery-powered applications.

Package

The AT29C040A-12TU is available in a standard 32-pin TSOP (Thin Small Outline Package) form factor.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for electronic systems, ensuring data integrity even in the absence of power.

Packaging/Quantity

The AT29C040A-12TU is typically packaged in reels or tubes, with each package containing a specific quantity of devices. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Organization: 512K x 8 bits
• Supply voltage: 2.7V - 5.5V
• Operating temperature range: -40°C to +85°C
• Programming voltage: 12V
• Erase voltage: 12V
• Endurance: 10,000 erase/write cycles
• Data retention: 20 years

Detailed Pin Configuration

The AT29C040A-12TU has a total of 32 pins, each serving a specific purpose. 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. A8 - Address input
10. A9 - Address input
11. A10 - Address input
12. A11 - Address input
13. A12 - Address input
14. A13 - Address input
15. A14 - Address input
16. A15 - Address input
17. OE# - Output Enable
18. CE# - Chip Enable
19. WE# - Write Enable
20. VCC - Power supply
21. DQ0 - Data input/output
22. DQ1 - Data input/output
23. DQ2 - Data input/output
24. DQ3 - Data input/output
25. DQ4 - Data input/output
26. DQ5 - Data input/output
27. DQ6 - Data input/output
28. DQ7 - Data input/output
29. RP# - Ready/Busy output
30. NC - No connection
31. GND - Ground
32. WP# - Write Protect

Functional Features

• Byte-wide operations: The AT29C040A-12TU allows for individual byte read and write operations, providing flexibility in data manipulation.
• Automatic page write: This feature enables efficient programming of multiple bytes within a single page, reducing programming time.
• Hardware and software protection: The device offers write protection mechanisms to prevent accidental modification or erasure of stored data.
• Fast access time: With a speed of 120 nanoseconds, the AT29C040A-12TU ensures quick data retrieval, minimizing system latency.

Advantages and Disadvantages

Advantages

• Non-volatile storage: The data remains intact even when power is removed.
• High capacity: The 4 megabit capacity allows for storing a significant amount of digital information.
• Low power consumption: The device is designed to minimize power usage, making it suitable for battery-powered applications.
• Fast access time: Quick data retrieval enhances system performance.

Disadvantages

• Limited endurance: The AT29C040A-12TU has a maximum endurance of 10,000 erase/write cycles, which may be a limitation in certain high-write applications.
• Programming voltage requirement: The device requires a programming voltage of 12V, which may necessitate additional circuitry in some systems.

Working Principles

The AT29C040A-12TU utilizes Flash memory technology to store and retrieve digital data. It employs a combination of floating-gate transistors and control circuitry to achieve non-volatile storage. When data is written, the charge on the floating gate is altered, representing either a "0" or a "1". During read operations, the stored charge is sensed, allowing the retrieval of the stored data.

Detailed Application Field Plans

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