AT27C2048-70VI

Product Overview

Category

AT27C2048-70VI belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is commonly used for storing permanent data that needs to be retained even when power is turned off. It is widely utilized in various electronic devices such as computers, microcontrollers, and consumer electronics.

Characteristics

• Non-volatile: The stored data remains intact even without power supply.
• High storage capacity: The AT27C2048-70VI has a capacity of 2,048 kilobits (256 kilobytes).
• Fast access time: With a speed of 70 nanoseconds, it ensures quick retrieval of data.
• Low power consumption: The chip operates efficiently with minimal power requirements.

Package

The AT27C2048-70VI is available in a standard 32-pin DIP (Dual In-line Package) format. This package type allows easy integration into circuit boards and provides mechanical stability.

Essence

The essence of AT27C2048-70VI lies in its ability to store large amounts of data reliably and securely, making it an essential component in many electronic systems.

Packaging/Quantity

The product is typically packaged in anti-static tubes or trays to prevent damage from electrostatic discharge during transportation and storage. The quantity per package varies depending on the supplier but is usually around 25 units.

Specifications

• Memory Capacity: 2,048 kilobits (256 kilobytes)
• Access Time: 70 nanoseconds
• Supply Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin DIP

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. E (Chip Enable)
13. G (Output Enable)
14. VCC (+5V Power Supply)
15. Q7
16. Q6
17. Q5
18. Q4
19. Q3
20. Q2
21. Q1
22. Q0
23. CE (Chip Erase)
24. OE (Output Enable)
25. WE (Write Enable)
26. NC (No Connection)
27. NC
28. NC
29. NC
30. NC
31. GND (Ground)
32. NC

Functional Features

• Easy integration: The chip can be easily connected to the system using standard digital logic interfaces.
• High-speed operation: With an access time of 70 nanoseconds, it ensures efficient data retrieval.
• Reliable data storage: The non-volatile nature of the memory ensures that stored data remains intact even during power loss.
• Low power consumption: The AT27C2048-70VI operates with minimal power requirements, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited write cycles: The chip has a finite number of times it can be written to before it becomes unreliable.
• Lack of flexibility: Once programmed, the data cannot be modified or erased.

Working Principles

The AT27C2048-70VI utilizes a technology called electrically programmable read-only memory (EPROM). It stores data by trapping electrical charges in specific memory cells. These charges represent binary information, which can be read by the system when required. The chip is designed to retain the stored data even when power is turned off.

Detailed Application Field Plans

The AT27C2048-70VI finds applications in various fields, including:

1. Computer systems: Used for storing firmware, BIOS, and other critical system data.
2. Microcontrollers: Utilized to store program code and configuration settings.
3. Consumer electronics: Integrated into devices like gaming consoles, set-top boxes, and audio players for storing firmware and user data.
4. Automotive industry: Employed in electronic control units (ECUs) for storing calibration data and software.

Detailed and Complete Alternative Models

1. AT27C4096-90VI: A similar PROM chip with double the storage capacity (4,096 kilobits).
2. AT28C256-15PU: An electrically erasable programmable read-only memory (EEPROM) chip with a smaller capacity (256 kilobits) but allows data modification.
3. AT29C010A-12PC: A flash memory chip with a capacity of 1,024 kilobits, offering both non-volatile storage and data modification capabilities.

These alternative models