AT27C040-12TI

Product Overview

Category

AT27C040-12TI belongs to the category of programmable read-only memory (PROM) chips.

Use

It is primarily used for storing data that needs to be permanently stored and cannot be modified or erased.

Characteristics

• Non-volatile: The data stored in AT27C040-12TI remains intact even when power is turned off.
• High storage capacity: It has a storage capacity of 4 megabits (512 kilobytes).
• Fast access time: The chip operates at a speed of 120 nanoseconds, allowing for quick retrieval of data.
• Low power consumption: AT27C040-12TI is designed to consume minimal power during operation.

Package

The AT27C040-12TI chip is available in a 32-pin plastic dual in-line package (PDIP).

Essence

The essence of AT27C040-12TI lies in its ability to store large amounts of data reliably and securely.

Packaging/Quantity

AT27C040-12TI is typically sold in reels containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Storage Capacity: 4 Megabits (512 Kilobytes)
• Access Time: 120 Nanoseconds
• Operating Voltage: 5V
• Package Type: 32-pin PDIP

Detailed Pin Configuration

1. A16 - Address Input
2. A15 - Address Input
3. A12 - Address Input
4. A7 - Address Input
5. A6 - Address Input
6. A5 - Address Input
7. A4 - Address Input
8. A3 - Address Input
9. A2 - Address Input
10. A1 - Address Input
11. A0 - Address Input
12. /OE - Output Enable
13. /CE - Chip Enable
14. VCC - Power Supply
15. DQ0 - Data Input/Output
16. DQ1 - Data Input/Output
17. DQ2 - Data Input/Output
18. DQ3 - Data Input/Output
19. DQ4 - Data Input/Output
20. DQ5 - Data Input/Output
21. DQ6 - Data Input/Output
22. DQ7 - Data Input/Output
23. VSS - Ground
24. NC - No Connection
25. A8 - Address Input
26. A9 - Address Input
27. A11 - Address Input
28. A10 - Address Input
29. /WE - Write Enable
30. /PGM - Program
31. /BYTE - Byte Mode Select
32. /RESET - Reset

Functional Features

• Non-volatile storage: The data stored in AT27C040-12TI remains intact even without power.
• High-speed access: The chip allows for quick retrieval of data with an access time of 120 nanoseconds.
• Easy integration: AT27C040-12TI can be easily integrated into various electronic systems due to its standard pin configuration and package type.
• Low power consumption: The chip is designed to consume minimal power during operation, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• Large storage capacity
• Fast access time
• Reliable and secure data storage
• Easy integration into electronic systems
• Low power consumption

Disadvantages

• Data cannot be modified or erased once programmed
• Limited flexibility compared to other memory technologies

Working Principles

AT27C040-12TI operates based on the principle of electrical charge trapping. The data is programmed onto the memory cells during the manufacturing process and remains stored in these cells until power is applied. When a specific address is accessed, the corresponding data is retrieved from the memory cells and made available for further processing.

Detailed Application Field Plans

AT27C040-12TI finds applications in various fields where permanent data storage is required. Some of the common application areas include: - Embedded systems - Automotive electronics - Industrial control systems - Medical devices - Consumer electronics

Detailed and Complete Alternative Models

1. AT27C010-12PC: 1 Megabit (128 Kilobytes) PROM chip with similar characteristics and pin configuration.
2. AT27C080-15PU: 8 Megabit (1 Megabyte) PROM chip with higher storage capacity and slightly slower access time.
3. AT27C256R-45PU: 256 Kilobit (32 Kilobytes) PROM chip with lower storage capacity but faster access time.

These alternative models provide options with varying storage capacities and performance characteristics to suit different application requirements.

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