AT27C080-90TU

Product Overview

Category

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

Use

This product is commonly used for storing permanent data or code that needs to be retained even when power is turned off. It is widely utilized in various electronic devices and systems.

Characteristics

• Non-volatile: The stored data remains intact even without power supply.
• Programmable: The memory can be written or programmed with specific data.
• Read-only: Once programmed, the data cannot be modified or erased.

Package

AT27C080-90TU is available in a standard 32-pin plastic dual in-line package (PDIP).

Essence

The essence of AT27C080-90TU lies in its ability to provide reliable and non-volatile storage for critical data or code in electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specified quantity of AT27C080-90TU chips.

Specifications

• Memory Size: 8 Megabits (1 Megabyte)
• Access Time: 90 nanoseconds
• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 20 years

Detailed Pin Configuration

The AT27C080-90TU chip has a total of 32 pins, which are assigned specific functions as follows:

1. A16: Address Input
2. A15: Address Input
3. A12: Address Input
4. A7: Address Input
5. A6: Address Input
6. A5: Address Input
7. A4: Address Input
8. A3: Address Input
9. A2: Address Input
10. A1: Address Input
11. A0: Address Input
12. VPP: Programming Voltage Input
13. OE: Output Enable
14. CE: Chip Enable
15. WE: Write Enable
16. I/O0: Data Input/Output
17. I/O1: Data Input/Output
18. I/O2: Data Input/Output
19. I/O3: Data Input/Output
20. I/O4: Data Input/Output
21. I/O5: Data Input/Output
22. I/O6: Data Input/Output
23. I/O7: Data Input/Output
24. VCC: Power Supply
25. GND: Ground
26. NC: No Connection
27. A8: Address Input
28. A9: Address Input
29. A11: Address Input
30. A10: Address Input
31. A14: Address Input
32. A13: Address Input

Functional Features

• High-speed access: The AT27C080-90TU offers fast access times, allowing for efficient data retrieval.
• Easy integration: It can be easily integrated into existing electronic systems due to its standard pin configuration and compatibility.
• Reliable data retention: The non-volatile nature of the memory ensures long-term data retention without the need for power supply.

Advantages and Disadvantages

Advantages

• Non-volatile storage
• Fast access times
• Easy integration into existing systems
• Reliable data retention

Disadvantages

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

Working Principles

The AT27C080-90TU operates based on the principle of electrical charge trapping in a floating gate structure. When programming, a high voltage is applied to the VPP pin, which allows electrons to tunnel through a thin oxide layer onto the floating gate. This trapped charge alters the threshold voltage of the memory cell, representing a programmed state. During read operations, the stored charge is detected, determining the logic level of the corresponding memory cell.

Detailed Application Field Plans

The AT27C080-90TU 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

1. AT27C040-90PU: 4 Megabit (512 Kilobyte) PROM chip with a 90 nanosecond access time.
2. AT27LV010A-12JC: 1 Megabit (128 Kilobyte) low-voltage PROM chip with a 12 nanosecond access time.
3. AT28C64B-15SU: 64 Kilobit (8 Kilobyte) EEPROM chip with a 15 microsecond access time.

These alternative models offer different storage capacities, access times, and functionality, providing options for specific application requirements.

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