AT29C040A-12PI

Product Overview

Category: Integrated Circuit (IC)

Use: The AT29C040A-12PI is a 4-megabit (512K x 8) electrically erasable programmable read-only memory (EEPROM) IC. It is commonly used for non-volatile storage in various electronic devices.

Characteristics: - Non-volatile memory - Electrically erasable and programmable - High storage capacity (4 megabits) - Low power consumption - Fast access time

Package: The AT29C040A-12PI is available in a 32-pin plastic DIP (Dual In-line Package) format, which allows for easy integration into circuit boards.

Essence: This IC provides reliable and non-volatile storage capabilities, allowing data to be stored even when power is removed from the device.

Packaging/Quantity: The AT29C040A-12PI is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

• Memory Size: 4 Megabits (512K x 8)
• Supply Voltage: 5V
• Access Time: 120 ns
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years
• Erase/Write Cycle Endurance: 10,000 cycles

Pin Configuration

The AT29C040A-12PI has a total of 32 pins, each serving a specific function. Here is a detailed pin configuration:

1. A16 - Address Input
2. A15 - Address Input
3. A14 - Address Input
4. A13 - Address Input
5. A12 - Address Input
6. A7 - Address Input
7. A6 - Address Input
8. A5 - Address Input
9. A4 - Address Input
10. A3 - Address Input
11. A2 - Address Input
12. A1 - Address Input
13. A0 - Address Input
14. VCC - Power Supply
15. OE# - Output Enable
16. CE# - Chip Enable
17. WE# - Write Enable
18. I/O0 - Data Input/Output
19. I/O1 - Data Input/Output
20. I/O2 - Data Input/Output
21. I/O3 - Data Input/Output
22. I/O4 - Data Input/Output
23. I/O5 - Data Input/Output
24. I/O6 - Data Input/Output
25. I/O7 - Data Input/Output
26. NC - No Connection
27. GND - Ground
28. RP - Ready/Busy Output
29. BYTE# - Byte Mode Select
30. RESET# - Reset Input
31. WP# - Write Protect
32. VCC - Power Supply

Functional Features

• Electrically erasable and programmable memory allows for easy data modification.
• Non-volatile storage ensures data retention even when power is removed.
• Fast access time enables quick retrieval of stored information.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating temperature range (-40°C to +85°C) allows for use in various environments.

Advantages and Disadvantages

Advantages: - High storage capacity - Easy integration into circuit boards - Reliable and non-volatile storage - Fast access time - Low power consumption

Disadvantages: - Limited erase/write cycle endurance (10,000 cycles) - Relatively high cost compared to other memory technologies

Working Principles

The AT29C040A-12PI utilizes electrically erasable programmable read-only memory (EEPROM) technology. It stores data by trapping electric charges in a floating gate within the memory cells. These charges can be erased and reprogrammed using electrical signals.

When data is written to the IC, the appropriate address and data signals are provided, along with a write enable signal. The data is then stored in the specified memory location. To read the stored data, the address and output enable signals are used.

Detailed Application Field Plans

The AT29C040A-12PI is widely used in various electronic devices that require non-volatile storage, such as: - Microcontrollers - Embedded systems - Automotive electronics - Industrial control systems - Consumer electronics

Its high storage capacity, fast access time, and reliability make it suitable for applications where data persistence is crucial.

Alternative Models

There are several alternative models available in the market that offer similar functionality to the AT29C040A-12PI. Some notable alternatives include: - AT28C64B-15PU: 64K x 8 EEPROM IC - AT25SF041-SSHD-T: