AT27C040-90TU

Product Overview

Category

AT27C040-90TU 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 written and cannot be modified or erased. It is commonly utilized in various electronic devices and systems.

Characteristics

• Non-volatile memory: The stored data remains intact even when power is removed.
• High storage capacity: The AT27C040-90TU has a capacity of 4 megabits (512 kilobytes).
• Fast access time: With an access time of 90 nanoseconds, it provides quick retrieval of data.
• Low power consumption: The chip operates efficiently with low power requirements.

Package

The AT27C040-90TU is available in a standard plastic dual in-line package (PDIP). This package ensures easy integration into circuit boards and provides mechanical protection to the chip.

Essence

The essence of AT27C040-90TU lies in its ability to store large amounts of data reliably and securely, making it suitable for applications where permanent data storage is required.

Packaging/Quantity

The AT27C040-90TU is typically packaged in reels or tubes, containing a specific quantity of chips per package. The exact packaging and quantity may vary depending on the manufacturer and customer requirements.

Specifications

• Memory Capacity: 4 Megabits (512 Kilobytes)
• Access Time: 90 Nanoseconds
• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Package Type: Plastic Dual In-Line Package (PDIP)

Detailed Pin Configuration

The AT27C040-90TU features a total of 32 pins, each serving a specific purpose. The pin configuration is as follows:

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. VPP (Programming Voltage)
15. DQ0
16. DQ1
17. DQ2
18. DQ3
19. DQ4
20. DQ5
21. DQ6
22. DQ7
23. VCC (Supply Voltage)
24. GND (Ground)
25. A14
26. A13
27. A8
28. A9
29. A11
30. A10
31. NC (No Connection)
32. /WE (Write Enable)

Functional Features

• High-speed data access: The AT27C040-90TU provides fast and efficient retrieval of stored data.
• Easy integration: The chip can be easily integrated into existing electronic systems due to its standard pin configuration and package type.
• Reliable data storage: The non-volatile nature of the memory ensures that the stored data remains intact even in the absence of power.

Advantages and Disadvantages

Advantages

• Large storage capacity
• Fast access time
• Low power consumption
• Reliable and secure data storage

Disadvantages

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

Working Principles

The AT27C040-90TU operates based on the principle of electrical programming. Once programmed, the data is stored in the memory cells using a combination of electrical charges. These charges are retained even when power is removed, ensuring the permanent storage of data.

Detailed Application Field Plans

The AT27C040-90TU finds applications in various fields, including but not limited to: 1. Embedded systems 2. Automotive electronics 3. Industrial control systems 4. Medical devices 5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to AT27C040-90TU include: 1. AT28C010E-15PU: 1 Megabit (128 Kilobytes) capacity, 150 nanoseconds access time. 2. AT29C256-12PC: 256 Kilobits (32 Kilobytes) capacity, 120 nanoseconds access time. 3. AT49BV1614T-90CI: 16 Megabits (2 Megabytes) capacity, 90 nanoseconds access time.

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

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