AT27C2048-70PI

Product Overview

Category

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

Use

This chip is primarily used for storing data that needs to be permanently written and cannot be modified or erased. It is commonly employed in applications where non-volatile memory is required.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• High storage capacity: The AT27C2048-70PI has a capacity of 2,048 kilobits (256 kilobytes).
• Fast access time: It operates at a speed of 70 nanoseconds, allowing for quick retrieval of data.
• Low power consumption: The chip is designed to consume minimal power during operation.

Package

The AT27C2048-70PI comes in a 32-pin plastic dual in-line package (PDIP). This package provides physical protection to the chip and facilitates easy integration into electronic circuits.

Essence

The essence of the AT27C2048-70PI lies in its ability to store large amounts of data reliably and securely, making it suitable for various applications requiring non-volatile memory.

Packaging/Quantity

The AT27C2048-70PI is typically packaged in tubes or trays, with each tube or tray containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory Capacity: 2,048 kilobits (256 kilobytes)
• Access Time: 70 nanoseconds
• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Input/Output Compatibility: TTL, CMOS

Detailed Pin Configuration

The AT27C2048-70PI features a 32-pin configuration. The pins are assigned specific functions as follows:

1. A14: Address Input
2. A12: Address Input
3. A7: Address Input
4. A6: Address Input
5. A5: Address Input
6. A4: Address Input
7. A3: Address Input
8. A2: Address Input
9. A1: Address Input
10. A0: Address Input
11. /OE: Output Enable
12. /CE: Chip Enable
13. VPP: Programming Voltage
14. NC: No Connection
15. DQ0: Data Input/Output
16. DQ1: Data Input/Output
17. DQ2: Data Input/Output
18. DQ3: Data Input/Output
19. DQ4: Data Input/Output
20. DQ5: Data Input/Output
21. DQ6: Data Input/Output
22. DQ7: Data Input/Output
23. VCC: Power Supply
24. GND: Ground
25. A8: Address Input
26. A9: Address Input
27. A11: Address Input
28. A10: Address Input
29. A13: Address Input
30. /WE: Write Enable
31. /PGM: Program Mode
32. /BYTE: Byte Mode Select

Functional Features

• Non-volatile storage: The AT27C2048-70PI retains data even when power is removed.
• High-speed access: With an access time of 70 nanoseconds, data retrieval is quick and efficient.
• Easy integration: The chip's 32-pin package allows for straightforward integration into electronic circuits.
• Low power consumption: Designed with power efficiency in mind, the AT27C2048-70PI minimizes energy usage.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Data cannot be modified or erased once programmed
• Limited functionality compared to other types of memory chips

Working Principles

The AT27C2048-70PI operates based on the principle of electrical charge trapping. During programming, data is written into the memory cells by applying a high voltage to the appropriate address lines. Once programmed, the stored data remains intact until the chip is replaced.

Detailed Application Field Plans

The AT27C2048-70PI finds applications in various fields, including: 1. Embedded systems 2. Automotive electronics 3. Industrial control systems 4. Medical devices 5. Consumer electronics

In embedded systems, the chip can be used for firmware storage, ensuring that critical software remains intact even during power cycles. In automotive electronics, it can store calibration data or configuration settings. Industrial control systems benefit from its non-volatile nature, allowing for reliable operation in harsh environments. Medical devices utilize the chip for storing patient data securely. Lastly,