AT27C2048-15PC

Product Overview

Category

AT27C2048-15PC belongs to the category of programmable read-only memory (PROM) chips.

Use

The AT27C2048-15PC chip is primarily used for storing data that needs to be permanently stored and cannot be modified. It is commonly used in various electronic devices such as computers, microcontrollers, and embedded systems.

Characteristics

• Non-volatile: The data stored in the AT27C2048-15PC chip remains intact even when power is turned off.
• High storage capacity: The chip has a storage capacity of 2,048 kilobits (256 kilobytes).
• Fast access time: The AT27C2048-15PC offers a fast access time of 150 nanoseconds, allowing for quick retrieval of data.
• Low power consumption: The chip operates on low power, making it suitable for battery-powered devices.
• Durable: The AT27C2048-15PC chip is designed to withstand harsh environmental conditions and has a long lifespan.

Package and Quantity

The AT27C2048-15PC chip is available in a 32-pin plastic dual in-line package (PDIP). It is typically sold in quantities of one or more.

Specifications

• Memory Type: Programmable Read-Only Memory (PROM)
• Capacity: 2,048 kilobits (256 kilobytes)
• Access Time: 150 nanoseconds
• Operating Voltage: 5V
• Package Type: 32-pin PDIP

Pin Configuration

The AT27C2048-15PC chip has a total of 32 pins. Here is the detailed pin configuration:

1. A16 - Address Input
2. A15 - Address Input
3. A12 - Address Input
4. A7 - Address Input
5. A6 - Address Input
6. A5 - Address Input
7. A4 - Address Input
8. A3 - Address Input
9. A2 - Address Input
10. A1 - Address Input
11. A0 - Address Input
12. VPP - Programming Voltage
13. OE - Output Enable
14. CE - Chip Enable
15. WE - Write Enable
16. I/O0 - Data Input/Output
17. I/O1 - Data Input/Output
18. I/O2 - Data Input/Output
19. I/O3 - Data Input/Output
20. I/O4 - Data Input/Output
21. I/O5 - Data Input/Output
22. I/O6 - Data Input/Output
23. I/O7 - Data Input/Output
24. VCC - Power Supply
25. GND - Ground
26. NC - No Connection
27. NC - No Connection
28. NC - No Connection
29. NC - No Connection
30. NC - No Connection
31. NC - No Connection
32. NC - No Connection

Functional Features

The AT27C2048-15PC chip offers the following functional features:

• Read-only memory: The chip allows for the storage of data that cannot be modified or erased.
• High-speed access: With a fast access time of 150 nanoseconds, the chip enables quick retrieval of stored data.
• Low power consumption: The AT27C2048-15PC operates on low power, making it energy-efficient and suitable for various applications.
• Durable design: The chip is designed to withstand harsh environmental conditions, ensuring reliable performance in demanding situations.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity allows for storing a large amount of data.
• Fast access time enables quick retrieval of information.
• Low power consumption makes it suitable for battery-powered devices.
• Durable design ensures long lifespan and reliability.

Disadvantages

• Data cannot be modified or erased once programmed.
• Limited flexibility compared to other types of memory.
• Higher cost compared to volatile memory options.

Working Principles

The AT27C2048-15PC chip operates based on the principle of programmable read-only memory. It uses a grid of transistors to store data in the form of electrical charges. Once programmed, the data remains permanently stored and cannot be modified or erased.

The chip utilizes address inputs to select specific memory locations and outputs the corresponding data through the data input/output pins. The chip is enabled by the chip enable (CE) signal and can be read using the output enable (OE) signal. The write enable (WE) signal is used during programming to allow data to be written into the memory cells.

Detailed Application Field Plans

The AT27C2048-15PC chip finds applications in various fields, including:

1. Computer