AT27C400-90JC

Product Overview

Category

AT27C400-90JC belongs to the category of programmable read-only memory (PROM) chips.

Use

This chip is primarily used for storing data that needs to be permanently written and cannot be modified or erased. 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.
• High capacity: The AT27C400-90JC has a capacity of 4 megabits (512 kilobytes).
• Fast access time: The chip operates at a speed of 90 nanoseconds, allowing for quick retrieval of data.
• Low power consumption: It requires minimal power to operate efficiently.

Package

The AT27C400-90JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of this PROM chip lies in its ability to store data permanently, making it ideal for applications that require non-volatile memory.

Packaging/Quantity

The AT27C400-90JC is typically packaged individually and is available in various quantities depending on the manufacturer's specifications.

Specifications

• Capacity: 4 megabits (512 kilobytes)
• Access Time: 90 nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin PLCC

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 AT27C400-90JC retains data even when power is removed.
• High-speed access: With an access time of 90 nanoseconds, data retrieval is quick and efficient.
• Easy integration: The chip can be easily integrated into existing systems due to its standard pin configuration.
• Low power consumption: The AT27C400-90JC operates with minimal power requirements.

Advantages and Disadvantages

Advantages

• Permanent data storage
• Fast access time
• Easy integration into existing systems
• Low power consumption

Disadvantages

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

Working Principles

The AT27C400-90JC uses a technology called floating-gate MOS (Metal-Oxide-Semiconductor) to store data. When programming the chip, electrical charges are trapped in the floating gate, representing the desired data. These charges remain trapped even when power is removed, ensuring non-volatile storage.

Detailed Application Field Plans

The AT27C400-90JC finds applications in various fields, including: 1. Embedded systems 2. Automotive electronics 3. Industrial control systems 4. Medical devices 5. Consumer electronics

Detailed and Complete Alternative Models

1. AT27C010-70PU
2. AT27C020-90JC
3. AT27C040-90PU
4. AT27C080-90JC
5. AT27C1024-70PU

These alternative models offer different capacities and specifications, allowing users to choose the most suitable option for their specific requirements.

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