AT27C2048-90JC

Product Overview

Category

AT27C2048-90JC 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 AT27C2048-90JC has a capacity of 2,048 kilobits (256 kilobytes).
• Fast access time: With a speed rating of 90 nanoseconds, it offers quick data retrieval.
• Low power consumption: This chip operates efficiently, minimizing power requirements.
• Durable: Designed to withstand harsh environmental conditions and provide long-term reliability.

Package

The AT27C2048-90JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package. This package type ensures easy installation and secure connections.

Essence

The essence of the AT27C2048-90JC lies in its ability to store large amounts of data reliably and securely. Its non-volatile nature ensures that critical information remains intact, making it suitable for various applications.

Packaging/Quantity

The AT27C2048-90JC is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Capacity: 2,048 kilobits (256 kilobytes)
• Access Time: 90 nanoseconds
• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin PLCC

Detailed Pin Configuration

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

• Easy programming: The AT27C2048-90JC supports simple and efficient programming methods.
• High-speed operation: With a fast access time, it enables quick data retrieval.
• Reliable data retention: The non-volatile nature ensures that stored data remains intact for an extended period.
• Low power consumption: This chip operates efficiently, minimizing power requirements and extending battery life.

Advantages and Disadvantages

Advantages

• Large storage capacity
• Fast access time
• Non-volatile memory
• Durable and reliable
• Low power consumption

Disadvantages

• Limited flexibility due to the inability to modify or erase stored data
• Relatively higher cost compared to other memory technologies

Working Principles

The AT27C2048-90JC utilizes a technology called electrically programmable read-only memory (EPROM). It stores data by using electrical charges to trap electrons in specific memory cells. These trapped charges represent binary information, which can be read by the device. The data remains intact even when power is removed, ensuring long-term data retention.

Detailed Application Field Plans

The AT27C2048-90JC finds applications in various fields, including:

1. Embedded Systems: Used for firmware storage in microcontrollers and other embedded devices.
2. Automotive Electronics: Employed for storing critical data in automotive systems such as engine control units (ECUs) and infotainment systems.
3. Industrial Control Systems: Utilized for program storage in industrial automation and control systems.
4. Medical Devices: Used for storing firmware and configuration data in medical equipment.
5. Consumer Electronics: Employed in devices like gaming consoles, set-top boxes, and digital cameras for non-volatile memory storage.

Detailed and Complete Alternative Models

1. AT28C256-15PU: 256-kilobit parallel EEPROM with a 150ns access time.
2. AM29F040B-90JC: 4-megabit flash memory with a 90ns access time.
3. M27C4001-12F1: 4-megabit EPROM with a 120ns access time.

These alternative models offer similar functionality and can be considered as substitutes for the AT27C2048-90JC depending on