AT27C020-12PI

Product Overview

Category

AT27C020-12PI belongs to the category of programmable read-only memory (PROM) chips.

Use

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

Characteristics

• Non-volatile: The stored data remains intact even when power is turned off.
• High storage capacity: The AT27C020-12PI has a capacity of 2 megabits (256 kilobytes).
• Fast access time: It operates at a speed of 120 nanoseconds.
• Low power consumption: It requires minimal power to operate efficiently.

Package

The AT27C020-12PI comes in a 32-pin plastic dual in-line package (PDIP).

Essence

The essence of the AT27C020-12PI is its ability to provide reliable and non-volatile storage for critical data.

Packaging/Quantity

This product is typically packaged in tubes or trays, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory Capacity: 2 megabits (256 kilobytes)
• Access Time: 120 nanoseconds
• Operating Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Pin Count: 32
• Package Type: PDIP

Detailed Pin Configuration

1. A16
2. A15
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. NC
28. NC
29. NC
30. NC
31. NC
32. NC

Functional Features

• Non-volatile storage: The AT27C020-12PI retains data even when power is disconnected.
• High-speed access: It provides fast read access with a low access time of 120 nanoseconds.
• Easy integration: The chip can be easily integrated into various electronic systems due to its standard pin configuration and package type.

Advantages and Disadvantages

Advantages

• Reliable and non-volatile storage solution.
• High storage capacity for storing large amounts of data.
• Fast access time ensures quick retrieval of information.
• Low power consumption for efficient operation.

Disadvantages

• Data cannot be modified or erased once programmed.
• Limited flexibility compared to other types of memory chips.
• Relatively higher cost compared to some alternative memory solutions.

Working Principles

The AT27C020-12PI operates based on the principle of electrical programming. Once programmed, the stored data remains intact until the chip is replaced. The chip uses a combination of address lines (A0-A16) and control signals (CE#, OE#, WE#) to read data from the memory array.

Detailed Application Field Plans

The AT27C020-12PI finds applications in various fields where permanent and non-volatile data storage is required. Some 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) capacity, 120 nanoseconds access time, PDIP package.
2. AT27C040-12PC: 4 megabit (512 kilobytes) capacity, 120 nanoseconds access time, PDIP package.
3. AT27C080-15PC: 8 megabit (1 megabyte) capacity, 150 nanoseconds access time, PDIP package.

These alternative models offer different storage capacities and access times to cater to specific application requirements.

Note: The above information is based on general specifications and may vary depending on the manufacturer and specific product version.