AT27C040-15TI

Product Overview

Category

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

Use

This chip is commonly used for storing permanent data that needs to be retained even when power is turned off. It is widely utilized in various electronic devices such as computers, microcontrollers, and consumer electronics.

Characteristics

• Non-volatile: The stored data remains intact even without power supply.
• Programmable: The chip can be electrically programmed with desired data.
• Read-only: Once programmed, the data cannot be modified or erased.

Package

AT27C040-15TI is available in a standard 32-pin plastic dual in-line package (PDIP). This package provides mechanical protection and facilitates easy integration into circuit boards.

Essence

The essence of AT27C040-15TI lies in its ability to store and retrieve data reliably, making it an essential component for applications requiring non-volatile memory.

Packaging/Quantity

AT27C040-15TI is typically packaged in reels or tubes, containing a specific quantity of chips per package. The exact packaging and quantity may vary depending on the manufacturer and customer requirements.

Specifications

• Operating Voltage: 5V
• Access Time: 150 ns
• Memory Size: 4 Megabits (512 Kilobytes)
• Organization: 512K x 8 bits
• Programming Method: Electrical programming
• Erase Method: Not applicable (Read-only memory)
• Temperature Range: -40°C to +85°C

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 (+5V)
13. OE (Output Enable)
14. CE (Chip Enable)
15. WE (Write Enable)
16. I/O0
17. I/O1
18. I/O2
19. I/O3
20. I/O4
21. I/O5
22. I/O6
23. I/O7
24. GND (Ground)
25. NC (No Connection)
26. NC
27. NC
28. NC
29. NC
30. NC
31. NC
32. NC

Functional Features

• High-speed access: The chip offers fast access times, allowing for efficient data retrieval.
• Low power consumption: AT27C040-15TI is designed to consume minimal power during operation, making it suitable for battery-powered devices.
• Reliable data retention: The non-volatile nature of the memory ensures that stored data remains intact over extended periods.

Advantages and Disadvantages

Advantages

• Non-volatile memory: Data remains intact even without power supply.
• Easy integration: Standard package and pin configuration facilitate seamless integration into various electronic systems.
• Fast access times: Enables quick retrieval of stored data.

Disadvantages

• Read-only: Once programmed, the data cannot be modified or erased.
• Limited storage capacity: The chip has a maximum memory size of 4 Megabits, which may not be sufficient for certain applications requiring larger storage capacities.

Working Principles

AT27C040-15TI utilizes electrical programming to store data in its memory cells. When the chip is powered and enabled, the desired data can be written to specific memory locations using appropriate control signals. Once programmed, the data can be read by enabling the output pins. The non-volatile nature of the memory ensures that the stored data remains intact even when power is turned off.

Detailed Application Field Plans

AT27C040-15TI finds applications in various fields, including:

1. Computer systems: Used for storing BIOS (Basic Input/Output System) firmware.
2. Microcontrollers: Utilized for storing program code and configuration data.
3. Consumer electronics: Integrated into devices such as gaming consoles, set-top boxes, and audio players to store firmware and data.

Detailed and Complete Alternative Models

1. AT27C080-15TI: Similar to AT27C040-15TI but with double the memory size (8 Megabits).
2. AT27C020-15TI: Smaller capacity version of AT27C040-15TI, with 2 Megabits of memory.

These alternative models offer different memory capacities to suit specific application requirements.

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