AT27C512R-12JI

Product Overview

Category

AT27C512R-12JI belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is commonly used for storing permanent data or code that needs to be retained even when power is turned off. It is widely utilized in various electronic devices and systems.

Characteristics

• Non-volatile: The stored data remains intact even without power.
• Programmable: The memory can be written to once using a special programming process.
• Read-only: Once programmed, the data cannot be modified or erased.

Package

AT27C512R-12JI is available in a 32-pin plastic dual in-line package (PDIP).

Essence

The essence of this product lies in its ability to provide non-volatile storage for critical data or code in electronic systems.

Packaging/Quantity

AT27C512R-12JI 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 supplier.

Specifications

• Part Number: AT27C512R-12JI
• Memory Size: 512 kilobits (64 kilobytes)
• Access Time: 120 nanoseconds
• Supply Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 20 years

Pin Configuration

The AT27C512R-12JI chip has a total of 32 pins. Here is the detailed pin configuration:

1. A14
2. A12
3. A7
4. A6
5. A5
6. A4
7. A3
8. A2
9. A1
10. A0
11. /OE (Output Enable)
12. /CE (Chip Enable)
13. A8
14. A9
15. A11
16. VCC (+5V Power Supply)
17. A10
18. NC (No Connection)
19. Q7
20. Q6
21. Q5
22. Q4
23. Q3
24. Q2
25. Q1
26. Q0
27. GND (Ground)
28. /WE (Write Enable)
29. A13
30. /BYTE (Byte/Word Organization)
31. /PGM (Program)
32. /VPP (Programming Voltage)

Functional Features

• High-speed access: The AT27C512R-12JI offers fast access times, allowing for efficient retrieval of stored data.
• Low power consumption: This chip is designed to minimize power usage, making it suitable for battery-powered devices.
• Reliable data retention: The non-volatile nature of the memory ensures that the stored data remains intact for an extended period.

Advantages and Disadvantages

Advantages

• Non-volatile storage
• Fast access times
• Low power consumption
• Reliable data retention

Disadvantages

• Data cannot be modified or erased once programmed
• Limited storage capacity compared to other memory technologies

Working Principles

The AT27C512R-12JI utilizes a floating-gate transistor technology to store data. During programming, a high voltage is applied to the control gate, which traps electrons in the floating gate, representing a logical "1." In contrast, a logical "0" is achieved by removing the trapped electrons from the floating gate. The presence or absence of electrons determines the state of each memory cell, allowing for data storage.

Detailed Application Field Plans

AT27C512R-12JI finds applications in various fields, including: - Embedded systems - Automotive electronics - Industrial control systems - Consumer electronics - Medical devices

Detailed and Complete Alternative Models

Some alternative models to AT27C512R-12JI include: - AT28C256-15PU - AM27C010-120DC - M27C4001-10F1

These models offer similar functionality and can be used as alternatives depending on specific requirements.

In conclusion, the AT27C512R-12JI is a programmable read-only memory chip that provides non-volatile storage for critical data or code. With its fast access times, low power consumption, and reliable data retention, it finds applications in various fields. While it has limitations such as the inability to modify or erase programmed data, alternative models are available to suit different needs.