AT27C080-12RI

Product Overview

Category

AT27C080-12RI 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 density: The chip has a capacity of 8 megabits, allowing for large amounts of data storage.
• Fast access time: With a speed rating of 12 nanoseconds, it provides quick access to stored information.
• Low power consumption: The chip operates on low power, making it suitable for battery-powered devices.

Package

AT27C080-12RI is available in a 32-pin plastic dual in-line package (PDIP). This package offers easy integration into circuit boards and provides mechanical protection to the chip.

Essence

The essence of AT27C080-12RI lies in its ability to store data permanently, ensuring that critical information remains intact even in the absence of power.

Packaging/Quantity

These chips are typically packaged in tubes or trays, with each tube or tray containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Capacity: 8 megabits
• Access Time: 12 nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 20 years

Detailed Pin Configuration

The AT27C080-12RI chip has a total of 32 pins. 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. VPP
13. WE#
14. OE#
15. CE#
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. GND
25. NC
26. NC
27. NC
28. NC
29. NC
30. NC
31. NC
32. VCC

Functional Features

• Write Protection: The chip features a write enable (WE#) pin, which allows the user to protect the stored data from being overwritten.
• Output Enable: The output enable (OE#) pin enables or disables the output buffers, providing control over data retrieval.
• Chip Enable: The chip enable (CE#) pin activates or deactivates the chip, allowing for efficient power management.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data integrity even during power loss.
• High storage capacity allows for extensive data storage.
• Fast access time enables quick retrieval of information.
• Low power consumption makes it suitable for battery-powered devices.

Disadvantages

• Data cannot be modified or erased once written.
• Limited functionality compared to other types of memory chips.
• Relatively higher cost per bit compared to some alternatives.

Working Principles

AT27C080-12RI utilizes a technology called electrically programmable read-only memory (EPROM). It consists of a grid of memory cells that can be programmed by applying specific electrical voltages. Once programmed, the data remains stored in the memory cells until the chip is replaced.

Detailed Application Field Plans

AT27C080-12RI finds applications in various fields, including: 1. Embedded systems: Used for firmware storage in microcontrollers and other embedded devices. 2. Automotive electronics: Stores critical data such as calibration values and configuration settings. 3. Industrial automation: Used for storing program code and configuration data in PLCs and industrial control systems. 4. Medical devices: Stores firmware and patient data in medical equipment. 5. Consumer electronics: Used in devices like gaming consoles, set-top boxes, and digital cameras for firmware storage.

Detailed and Complete Alternative Models

Some alternative models to AT27C080-12RI include: 1. AT28C64B-15PU: 64 kilobit electrically erasable programmable read-only memory (EEPROM) chip. 2. AM29F016D-90EC: 16 megabit flash memory chip with a fast access time of 90 nanoseconds. 3. M27C256B-10F1: 256 kilobit ultraviolet erasable programmable read-only memory (UV EPROM) chip.

These alternative models offer different features and capabilities, allowing users to choose the most suitable