AT27C080-90TI

Product Overview

Category: Integrated Circuit (IC)

Use: The AT27C080-90TI is a programmable read-only memory (PROM) IC. It is commonly used for storing non-volatile data that needs to be retained even when power is removed from the system.

Characteristics: - Non-volatile memory - High storage capacity - Fast access time - Low power consumption

Package: The AT27C080-90TI is available in a 32-pin Thin In-Line Package (TIL). This package provides a compact and durable form factor, making it suitable for various applications.

Essence: The essence of the AT27C080-90TI lies in its ability to store and retrieve data reliably, even in the absence of power. This makes it an essential component in systems where permanent data storage is required.

Packaging/Quantity: The AT27C080-90TI is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Storage Capacity: 8 Megabits (1 Megabyte)
• Access Time: 90 nanoseconds
• Operating Voltage: 5V
• Input/Output Voltage Levels: TTL-compatible
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT27C080-90TI 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. 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. NC
29. NC
30. NC
31. NC
32. NC

Functional Features

• Programmability: The AT27C080-90TI can be programmed using a suitable programming device, allowing users to store their desired data in the memory.
• Non-volatile Storage: The stored data remains intact even when power is removed from the system, ensuring reliable and permanent storage.
• Fast Access Time: With an access time of 90 nanoseconds, the AT27C080-90TI provides quick retrieval of data, minimizing delays in system operations.
• Low Power Consumption: The IC is designed to consume minimal power during both active and standby modes, making it energy-efficient.

Advantages and Disadvantages

Advantages: - Reliable non-volatile storage - Fast access time - Low power consumption - Compact package size

Disadvantages: - Limited storage capacity compared to other memory technologies - Requires external programming device for initial data storage

Working Principles

The AT27C080-90TI utilizes a technology called Electrically Erasable Programmable Read-Only Memory (EEPROM). It consists of a grid of memory cells that can be individually programmed or erased electrically. The stored data is retained by trapping electric charges within the memory cells, ensuring non-volatility.

During operation, the IC receives commands through control pins (CE#, OE#, WE#) and address inputs (A0-A16). Data is read from or written to the memory cells through the I/O pins (I/O0-I/O7). The programming process involves applying specific voltage levels to the control pins and providing the desired data inputs.

Detailed Application Field Plans

The AT27C080-90TI finds applications in various fields, including:

1. Embedded Systems: Used for storing firmware, configuration data, and lookup tables in microcontrollers and other embedded systems.
2. Automotive Electronics: Employed in automotive electronic control units (ECUs) for storing calibration data, fault codes, and system parameters.
3. Industrial Control Systems: Utilized in programmable logic controllers (PLCs) and industrial automation systems for storing program code and configuration data.
4. Consumer Electronics: Integrated into devices such as set-top boxes, gaming consoles, and audio/video equipment for storing firmware and user settings.

Detailed and Complete Alternative Models

1. AT28C256-15PU: 256 Kilobit (32 Kilobyte) EEPROM IC with a 150 nanosecond access time.
2. AT29C010A-12PC: 1 Megabit (128 Kilobyte) Flash