AT27C020-70PC

Product Overview

Category

AT27C020-70PC 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 stored and cannot be modified. It is commonly used in applications where non-volatile memory is required.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• Programmable: The memory can be programmed with data before being installed in a system.
• Read-only: Once programmed, the data cannot be modified or erased.

Package

AT27C020-70PC is available in a 32-pin DIP (Dual Inline Package) format.

Essence

The essence of AT27C020-70PC lies in its ability to provide reliable and non-volatile storage for critical data in various electronic systems.

Packaging/Quantity

This product is typically packaged in tubes or trays, with each package containing a specific quantity of AT27C020-70PC chips.

Specifications

• Operating Voltage: 5V
• Access Time: 70ns
• Memory Size: 2 Megabits (256 Kilobytes)
• Organization: 256K x 8 bits
• Programming Method: Parallel
• Erase Method: Not applicable (Read-only memory)

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. VPP
13. OE#
14. CE#
15. WE#
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. VCC
25. GND
26. NC
27. A8
28. A9
29. A11
30. A13
31. A15
32. NC

Functional Features

• High-speed access: The 70ns access time allows for quick retrieval of data.
• Low power consumption: AT27C020-70PC operates at a low voltage and consumes minimal power.
• Reliable storage: The non-volatile nature of the memory ensures that data remains intact even during power outages or system failures.

Advantages and Disadvantages

Advantages

• Non-volatile storage
• Easy to program
• High-speed access

Disadvantages

• Data cannot be modified or erased once programmed
• Limited storage capacity compared to other memory types

Working Principles

AT27C020-70PC uses a parallel programming method to store data in its memory cells. The data is written to the memory using specific voltage levels applied to the address and control pins. Once programmed, the data can only be read and cannot be modified or erased.

Detailed Application Field Plans

AT27C020-70PC finds applications in various fields where non-volatile and reliable storage of data is required. Some potential application areas include: - Embedded systems - Automotive electronics - Industrial control systems - Medical devices - Communication equipment

Detailed and Complete Alternative Models

1. AT27C010-70PC: 1 Megabit (128 Kilobytes) capacity
2. AT27C040-70PC: 4 Megabit (512 Kilobytes) capacity
3. AT27C080-70PC: 8 Megabit (1 Megabyte) capacity
4. AT27C256R-70PC: 256 Kilobit (32 Kilobytes) capacity

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

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