AT27C080-90DC

Product Overview

Category: Integrated Circuit (IC)

Use: The AT27C080-90DC is a programmable read-only memory (PROM) IC. It is commonly used for storing non-volatile data in electronic devices.

Characteristics: - Non-volatile: The stored data remains even when power is removed. - Programmable: The memory can be written to once using a programming device. - Read-only: Once programmed, the data cannot be modified.

Package: The AT27C080-90DC is available in a Dual Inline Package (DIP), which consists of two parallel rows of pins.

Essence: The essence of the AT27C080-90DC is its ability to store and retrieve data reliably in various electronic applications.

Packaging/Quantity: The AT27C080-90DC is typically packaged in tubes or trays, with each package containing a specific quantity of ICs.

Specifications

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

Pin Configuration

The AT27C080-90DC has a total of 32 pins arranged as follows:

┌───┬───┐ │ 1 │ 32│ ├───┼───┤ │ 2 │ 31│ ├───┼───┤ │ 3 │ 30│ ├───┼───┤ │ . │ . │ ├───┼───┤ │ . │ . │ ├───┼───┤ │ . │ . │ ├───┼───┤ │ 30│ 3 │ ├───┼───┤ │ 31│ 2 │ ├───┼───┤ │ 32│ 1 │ └───┴───┘

Functional Features

• High-speed access: The AT27C080-90DC provides fast data retrieval with an access time of 90 nanoseconds.
• Easy programming: The memory can be programmed using standard PROM programming devices.
• Data protection: The stored data is protected from accidental modification due to the read-only nature of the memory.

Advantages and Disadvantages

Advantages: - Non-volatile storage: The data remains intact even when power is removed. - Reliable performance: The AT27C080-90DC offers high-quality data storage and retrieval. - Easy integration: The IC can be easily integrated into various electronic systems.

Disadvantages: - Limited write capability: The memory can only be written to once, making it unsuitable for applications requiring frequent data updates. - Larger physical size: The DIP package used for the AT27C080-90DC occupies more space compared to smaller surface-mount packages.

Working Principles

The AT27C080-90DC operates based on the principle of electrical charge trapping. During programming, a voltage is applied to specific pins, causing electrons to be trapped in the memory cells, representing the desired data. During read operations, the stored charges are sensed, allowing the retrieval of the programmed data.

Detailed Application Field Plans

The AT27C080-90DC finds application in various fields, including: 1. Consumer electronics: Used in devices such as TVs, DVD players, and gaming consoles for storing firmware and configuration data. 2. Automotive industry: Employed in automotive electronic control units (ECUs) for storing calibration data and firmware. 3. Industrial automation: Used in programmable logic controllers (PLCs) to store program instructions and configuration data.

Detailed and Complete Alternative Models

1. AT27C040-90JC: A similar PROM IC with a smaller memory size of 4 Megabits.
2. AT28C256-15PU: An Electrically Erasable Programmable Read-Only Memory (EEPROM) IC with a memory size of 256 Kilobits.
3. AT29C010A-12PC: A Flash memory IC with a memory size of 1 Megabit.

These alternative models offer different memory sizes and programming capabilities, providing flexibility for various application requirements.

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