AT27C080-90JI

Product Overview

Category

AT27C080-90JI belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is commonly used in electronic devices for storing permanent data that cannot be modified or erased.

Characteristics

• Non-volatile memory: The stored data remains intact even when power is turned off.
• High storage capacity: The AT27C080-90JI has a capacity of 8 megabits (1 megabyte).
• Fast access time: It operates at a speed of 90 nanoseconds, allowing for quick retrieval of data.
• Low power consumption: The chip is designed to minimize power usage, making it suitable for battery-powered devices.

Package

The AT27C080-90JI is available in a 32-pin plastic J-lead chip carrier (PLCC) package.

Essence

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

Packaging/Quantity

The AT27C080-90JI is typically packaged in reels containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 8 megabits (1 megabyte)
• Access Time: 90 nanoseconds
• Supply Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin PLCC

Detailed Pin Configuration

The AT27C080-90JI features a 32-pin configuration with the following pin assignments:

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. A8
29. A9
30. A11
31. A10
32. A13

Functional Features

• Easy programming: The AT27C080-90JI supports a simple programming process, allowing users to write data into the memory cells.
• High reliability: This PROM chip offers excellent data retention and endurance characteristics, ensuring long-term reliability.
• Compatibility: It is compatible with various microcontrollers and other electronic devices, making it versatile for different applications.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even without power.
• Fast access time: Allows for quick retrieval of stored information.
• Low power consumption: Suitable for battery-powered devices.
• High reliability: Offers excellent data retention and endurance characteristics.

Disadvantages

• Limited storage capacity: 8 megabits may not be sufficient for certain applications requiring larger memory sizes.
• Inability to modify or erase data: Once programmed, the data cannot be changed or erased.

Working Principles

The AT27C080-90JI operates based on the principle of electrical charge trapping in floating-gate transistors. During programming, a high voltage is applied to the control gate, causing electrons to tunnel through a thin oxide layer onto the floating gate. This trapped charge alters the transistor's threshold voltage, representing the programmed data. During read operations, the stored charge is detected, allowing the retrieval of the programmed information.

Detailed Application Field Plans

The AT27C080-90JI finds applications in various electronic devices, including but not limited to: - Embedded systems - Automotive electronics - Industrial control systems - Consumer electronics - Medical devices

Detailed and Complete Alternative Models

1. AT27C040-90JI: 4 megabit (512 kilobyte) capacity, 90 nanoseconds access time.
2. AT27C256R-45JI: 256 kilobit (32 kilobyte) capacity, 45 nanoseconds access time.
3. AT27LV010A-12JI: 1 megabit (128 kilobyte) capacity, 12 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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