AT27C080-90PI

Product Overview

Category

AT27C080-90PI 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. It provides non-volatile memory storage, making it ideal for applications where data integrity is crucial.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• High capacity: The AT27C080-90PI has a storage capacity of 8 megabits (1 megabyte).
• Fast access time: With a speed of 90 nanoseconds, it ensures quick retrieval of data.
• Low power consumption: This chip operates efficiently with low power requirements.

Package and Quantity

The AT27C080-90PI is available in a 32-pin DIP (Dual In-line Package) format. Each package contains one chip.

Specifications

• Storage Capacity: 8 Megabits (1 Megabyte)
• Access Time: 90 Nanoseconds
• Operating Voltage: 5 Volts
• Package Type: 32-pin DIP

Pin Configuration

The AT27C080-90PI follows the standard pin configuration for PROM chips. The detailed pinout is as follows:

Pin 1: A16 Pin 2: A15 Pin 3: A12 ... Pin 30: VCC Pin 31: OE# Pin 32: GND

Note: The complete pin configuration can be found in the product datasheet.

Functional Features

• Easy programming: The AT27C080-90PI supports parallel programming, allowing for convenient and efficient data storage.
• Data protection: This chip features a write-protect pin (WP#) that prevents accidental modification of stored data.
• High reliability: With its non-volatile nature, the AT27C080-90PI ensures data integrity and long-term reliability.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Inability to modify or erase stored data limits its flexibility compared to other types of memory.
• Limited endurance: The number of write cycles is finite, which may affect the lifespan of the chip.

Working Principles

The AT27C080-90PI utilizes a technology called electrically erasable programmable read-only memory (EEPROM). It stores data using floating-gate transistors that can be electrically programmed and erased. Once programmed, the data remains intact until explicitly erased.

Detailed Application Field Plans

The AT27C080-90PI finds applications in various electronic devices, including but not limited to: 1. Embedded systems 2. Automotive electronics 3. Industrial control systems 4. Medical equipment 5. Communication devices

Its ability to store critical data reliably makes it suitable for applications where permanent data storage is required.

Alternative Models

For users seeking alternative options, the following PROM chips can be considered as alternatives to the AT27C080-90PI: 1. AT28C64B-15PU: 64 Kilobit (8 Kilobyte) capacity, 150 nanoseconds access time. 2. AM29F040B-90JC: 4 Megabit (512 Kilobyte) capacity, 90 nanoseconds access time. 3. M27C256B-12F1: 256 Kilobit (32 Kilobyte) capacity, 120 nanoseconds access time.

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

In conclusion, the AT27C080-90PI is a programmable read-only memory chip that provides non-volatile storage of data. With its high capacity, fast access time, and low power consumption, it is widely used in various electronic devices. While it has limitations such as the inability to modify stored data and limited endurance, its reliability and data integrity make it an essential component in many applications.