AT27C020-90TC

Product Overview

Category

AT27C020-90TC belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is commonly used for storing data that needs to be permanently stored and cannot be modified. It is widely used in various electronic devices such as computers, microcontrollers, and embedded systems.

Characteristics

• Non-volatile: The data stored in AT27C020-90TC remains intact even when power is turned off.
• High storage capacity: This chip has a storage capacity of 2 megabits (256 kilobytes).
• Fast access time: With an access time of 90 nanoseconds, it provides quick retrieval of stored data.
• Durable: AT27C020-90TC has a high endurance, allowing for repeated read operations without degradation.

Package

AT27C020-90TC is available in a 32-pin plastic package.

Essence

The essence of AT27C020-90TC lies in its ability to store large amounts of data in a non-volatile manner, ensuring data integrity and reliability.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Storage Capacity: 2 Megabits (256 Kilobytes)
• Access Time: 90 Nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin Plastic Package

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. E (Chip Enable)
13. G (Output Enable)
14. VCC (+5V Power Supply)
15. A8
16. A9
17. A11
18. A10
19. D0
20. D1
21. D2
22. D3
23. D4
24. D5
25. D6
26. D7
27. CE (Program Enable)
28. OE (Output Enable)
29. NC (No Connection)
30. NC (No Connection)
31. NC (No Connection)
32. GND (Ground)

Functional Features

• Non-volatile storage of data
• Fast access time for quick retrieval
• High endurance for repeated read operations
• Compatibility with various electronic devices and systems

Advantages and Disadvantages

Advantages

• Non-volatile nature ensures data integrity
• High storage capacity
• Fast access time
• Durable and reliable

Disadvantages

• Data cannot be modified once programmed
• Limited storage capacity compared to other memory technologies

Working Principles

AT27C020-90TC operates by using a combination of electronic circuits and memory cells to store and retrieve data. When the chip enable (CE) and output enable (OE) signals are activated, the stored data can be accessed through the corresponding address lines.

Detailed Application Field Plans

AT27C020-90TC finds applications in various fields, including: - Computer systems - Microcontrollers - Embedded systems - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to AT27C020-90TC include: - AT27C010-70PU - AT27C040-90PU - AT27C080-90PU - AT27C1024-90PU

These models offer similar functionality and characteristics, but with different storage capacities and access times.

In conclusion, AT27C020-90TC is a programmable read-only memory chip that provides non-volatile storage of data with high endurance and fast access time. It finds applications in various electronic devices and systems, offering reliability and data integrity.