AT27C020-70TC

Product Overview

Category

AT27C020-70TC belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is commonly used for storing permanent data that cannot be modified or erased. It is widely utilized in various electronic devices and systems.

Characteristics

• Non-volatile: The stored data remains intact even when power is turned off.
• High storage capacity: The AT27C020-70TC has a capacity of 2 megabits (256 kilobytes).
• Fast access time: With a maximum access time of 70 nanoseconds, it ensures efficient data retrieval.
• Low power consumption: Designed to operate with minimal power requirements.
• Durable: The chip is resistant to environmental factors such as temperature and humidity.

Package

The AT27C020-70TC is available in a standard 32-pin plastic package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for critical data in electronic systems.

Packaging/Quantity

The AT27C020-70TC is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 2 Megabits (256 Kilobytes)
• Access Time: 70 Nanoseconds
• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Input/Output Compatibility: TTL

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. /OE (Output Enable)
13. /CE (Chip Enable)
14. VSS (Ground)
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. NC (No Connection)
28. VCC (Supply Voltage)
29. /WE (Write Enable)
30. /PGM (Program)
31. /VPP (Programming Voltage)
32. /ACC (Access Time Control)

Functional Features

• Non-volatile storage: The AT27C020-70TC retains data even when power is disconnected.
• High-speed access: With a maximum access time of 70 nanoseconds, it ensures quick retrieval of stored information.
• Easy integration: Compatible with TTL input/output levels, making it suitable for various electronic systems.
• Low power consumption: Designed to operate efficiently with minimal power requirements.

Advantages and Disadvantages

Advantages

• Reliable non-volatile storage solution
• High storage capacity
• Fast access time
• Low power consumption
• Durable design

Disadvantages

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

Working Principles

The AT27C020-70TC utilizes a technology known as electrically programmable read-only memory (EPROM). It stores data by applying electrical charges to specific memory cells within the chip. Once programmed, the data remains intact until the chip is replaced.

Detailed Application Field Plans

The AT27C020-70TC finds applications in various fields, including: - Embedded systems - Automotive electronics - Industrial control systems - Medical devices - Communication equipment

Detailed and Complete Alternative Models

1. AT27C040-70PU: 4 Megabit (512 Kilobytes) capacity, 70 nanoseconds access time.
2. AT27C080-90JC: 8 Megabit (1 Megabyte) capacity, 90 nanoseconds access time.
3. AT27C256R-45PU: 256 Kilobit (32 Kilobytes) capacity, 45 nanoseconds access time.

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

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