AT27C2048-70VC

Product Overview

Category

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

Use

This product is primarily used for storing data that needs to be permanently written and cannot be modified or erased. It finds applications in various electronic devices, such as computers, consumer electronics, and automotive systems.

Characteristics

• Non-volatile: The stored data remains intact even when power is turned off.
• High storage capacity: The AT27C2048-70VC has a capacity of 2,048 kilobits (256 kilobytes).
• Fast access time: With a speed of 70 nanoseconds, it provides quick retrieval of data.
• Low power consumption: The chip operates efficiently with minimal power requirements.

Package

The AT27C2048-70VC is available in a 32-pin plastic package.

Essence

The essence of this product lies in its ability to store large amounts of data reliably and securely, ensuring long-term data retention.

Packaging/Quantity

The AT27C2048-70VC is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact quantity may vary depending on the manufacturer's specifications.

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 plastic package

Detailed Pin Configuration

1. A0: Address Input
2. A1: Address Input
3. A2: Address Input
4. A3: Address Input
5. A4: Address Input
6. A5: Address Input
7. A6: Address Input
8. A7: Address Input
9. A8: Address Input
10. A9: Address Input
11. A10: Address Input
12. A11: Address Input
13. A12: Address Input
14. A13: Address Input
15. A14: Address Input
16. A15: Address Input
17. A16: Address Input
18. A17: Address Input
19. A18: Address Input
20. /OE: Output Enable
21. /CE: Chip Enable
22. /WE: Write Enable
23. VSS: Ground
24. DQ0: Data Output
25. DQ1: Data Output
26. DQ2: Data Output
27. DQ3: Data Output
28. DQ4: Data Output
29. DQ5: Data Output
30. DQ6: Data Output
31. DQ7: Data Output
32. VCC: Supply Voltage

Functional Features

• Read-only memory: The AT27C2048-70VC is designed for read-only operations, ensuring data integrity.
• High-speed access: With a fast access time of 70 nanoseconds, it enables quick retrieval of stored data.
• Low power consumption: The chip operates efficiently, consuming minimal power during operation.
• Reliable data retention: The non-volatile nature of the PROM ensures that the stored data remains intact even in the absence of power.

Advantages and Disadvantages

Advantages

• Large storage capacity
• Fast access time
• Low power consumption
• Reliable data retention

Disadvantages

• Inability to modify or erase stored data
• Limited functionality compared to other types of memory

Working Principles

The AT27C2048-70VC operates based on the principle of electrical programming. During the manufacturing process, the data is permanently written into the memory cells using a series of electrical pulses. Once programmed, the stored data remains unchanged until the chip is replaced.

Detailed Application Field Plans

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

1. Computer systems: Used for storing firmware, boot code, and other critical data.
2. Consumer electronics: Employed in devices like set-top boxes, gaming consoles, and digital cameras for storing system software and configuration data.
3. Automotive systems: Utilized in automotive electronic control units (ECUs) to store calibration data, firmware, and diagnostic information.

Detailed and Complete Alternative Models

1. AT27C1024-70VC: A similar PROM chip with a capacity of 1,024 kilobits (128 kilobytes).
2. AT27C4096-70VC: A higher-capacity PROM chip with 4,096 kilobits (512 kilobytes) of storage.

These alternative models offer different storage capacities to suit specific application requirements.

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