AT27C040-15RI

Product Overview

Category

AT27C040-15RI belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is primarily used for storing data that needs to be permanently retained, even when power is turned off. It allows users to program and store data that cannot be modified or erased.

Characteristics

• Non-volatile: The stored data remains intact even when power is lost.
• High storage capacity: The AT27C040-15RI has a storage capacity of 4 megabits (512 kilobytes).
• Fast access time: With an access time of 150 nanoseconds, it provides quick retrieval of stored data.
• Low power consumption: The chip operates at low power levels, making it energy-efficient.

Package

The AT27C040-15RI comes in a standard integrated circuit (IC) package. It is commonly available in a 32-pin dual in-line package (DIP).

Essence

The essence of this product lies in its ability to store large amounts of data reliably and securely, without the risk of accidental modification or erasure.

Packaging/Quantity

The AT27C040-15RI is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Storage Capacity: 4 Megabits (512 Kilobytes)
• Access Time: 150 Nanoseconds
• Operating Voltage: 5 Volts
• Package Type: 32-Pin DIP
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT27C040-15RI has a total of 32 pins, each serving a specific function. 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. DQ0 - Data Output
20. DQ1 - Data Output
21. DQ2 - Data Output
22. DQ3 - Data Output
23. DQ4 - Data Output
24. DQ5 - Data Output
25. DQ6 - Data Output
26. DQ7 - Data Output
27. VCC - Power Supply (5V)
28. GND - Ground
29. NC - No Connection
30. NC - No Connection
31. /WE - Write Enable
32. /PGM - Program Enable

Functional Features

• Non-volatile storage: The AT27C040-15RI retains data even when power is turned off.
• High-speed access: With a fast access time of 150 nanoseconds, data retrieval is quick and efficient.
• Easy programming: The chip can be programmed using standard PROM programming techniques.
• Reliable data retention: The stored data remains intact for an extended period, ensuring long-term reliability.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity allows for the storage of large amounts of data.
• Fast access time enables quick retrieval of stored information.
• Low power consumption makes it energy-efficient.

Disadvantages

• Data cannot be modified or erased once programmed.
• Limited write cycles compared to other types of memory.
• Relatively larger physical size due to the DIP package.

Working Principles

The AT27C040-15RI operates based on the principle of electrical charge trapping. During programming, a high voltage is applied to the selected address lines and data lines, causing electrons to be trapped in specific memory cells. These trapped charges represent the programmed data. During read operations, the stored charges are detected and converted into digital signals.

Detailed Application Field Plans

The AT27C040-15RI finds applications in various fields where non-volatile storage of data is required. Some potential application areas include: - Embedded systems - Automotive electronics - Industrial control systems - Medical devices - Consumer electronics

Detailed and Complete Alternative Models

There are several alternative models available in the market that offer similar functionality to the AT27C040-15RI. Some notable alternatives include: - AT28C64B: 64 Kil