AT27C516-45JI

Product Overview

Category

AT27C516-45JI 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 where non-volatile memory is required.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• High storage capacity: The AT27C516-45JI has a capacity of 512 kilobits.
• Fast access time: This chip offers a fast access time of 45 nanoseconds.
• Low power consumption: It operates on low power, making it suitable for battery-powered devices.

Package

The AT27C516-45JI comes in a 32-pin plastic dual in-line package (PDIP).

Essence

The essence of this product lies in its ability to provide reliable and permanent storage of data in electronic devices.

Packaging/Quantity

The AT27C516-45JI is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory Capacity: 512 kilobits
• Access Time: 45 nanoseconds
• Supply Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Pin Count: 32
• Package Type: PDIP

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. VPP
13. OE#
14. CE#
15. WE#
16. I/O0
17. I/O1
18. I/O2
19. I/O3
20. I/O4
21. I/O5
22. I/O6
23. I/O7
24. VCC
25. GND
26. NC
27. NC
28. NC
29. NC
30. NC
31. NC
32. NC

Functional Features

• Easy programming: The AT27C516-45JI can be programmed using standard PROM programming equipment.
• High reliability: This chip offers excellent data retention and endurance characteristics, ensuring reliable operation over an extended period.
• Compatibility: It is compatible with a wide range of microcontrollers and other digital devices.
• Low power consumption: The AT27C516-45JI operates on low power, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data integrity even during power loss.
• High storage capacity allows for storing large amounts of data.
• Fast access time enables quick retrieval of information.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Once programmed, the data cannot be modified or erased, limiting flexibility.
• Limited write endurance compared to other types of memory.
• Relatively larger physical size compared to newer memory technologies.

Working Principles

The AT27C516-45JI uses a technology called floating-gate MOS (FGMOS) to store data. When programming, electrical charges are trapped in the floating gate, altering the transistor's behavior and storing the desired data. During read operations, the stored charge is detected, allowing the retrieval of the programmed information.

Detailed Application Field Plans

The AT27C516-45JI finds applications in various fields, including: 1. Embedded systems 2. Automotive electronics 3. Industrial control systems 4. Medical devices 5. Consumer electronics

Detailed and Complete Alternative Models

1. AT27C010-45JI: 1 megabit capacity, 45 nanoseconds access time.
2. AT27C040-90JI: 4 megabit capacity, 90 nanoseconds access time.
3. AT27C080-70JI: 8 megabit capacity, 70 nanoseconds access time.
4. AT27C256R-45JI: 256 kilobit capacity, 45 nanoseconds access time.

These alternative models offer different capacities and access times to suit specific application requirements.

In conclusion, the AT27C516-45JI is a programmable read-only memory chip that provides reliable and permanent data storage. With its high capacity, fast access time, and low power consumption, it finds applications in various electronic devices across different industries. While it has limitations such as limited write endurance and lack of flexibility in modifying data, it remains a popular choice for non-volatile memory needs.