AT27C040-15JI

Product Overview

Category

AT27C040-15JI belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is commonly used for storing permanent data or program code that cannot be altered once programmed.

Characteristics

• Non-volatile memory: The stored data remains intact even when power is removed.
• High storage capacity: The AT27C040-15JI has a capacity of 4 megabits (512 kilobytes).
• Fast access time: It operates with a maximum access time of 150 nanoseconds.
• Low power consumption: The chip is designed to minimize power usage during operation.

Package

The AT27C040-15JI is available in a 32-pin plastic J-lead chip carrier (PLCC) package.

Essence

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

Packaging/Quantity

The AT27C040-15JI is typically sold in reels, with each reel containing a specified quantity of chips. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 4 megabits (512 kilobytes)
• Access Time: 150 nanoseconds
• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin PLCC

Detailed Pin Configuration

1. A16
2. A14
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. A15
28. A13
29. A8
30. A9
31. A11
32. A10

Functional Features

• Easy programming: The AT27C040-15JI supports a simple and straightforward programming process.
• High reliability: The PROM chip ensures data integrity and long-term retention.
• Compatibility: It is compatible with various microcontrollers and systems.
• Low power consumption: The chip operates efficiently, minimizing power usage.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High storage capacity allows for storing large amounts of data or program code.
• Fast access time enables quick retrieval of information.
• Simple programming process facilitates ease of use.

Disadvantages

• Once programmed, the data cannot be modified or erased.
• Limited flexibility compared to other types of memory chips.
• Relatively higher cost per unit compared to some alternatives.

Working Principles

The AT27C040-15JI utilizes a technology called electrically erasable programmable read-only memory (EEPROM). It stores data using a grid of transistors that can be electrically programmed to represent binary values. Once programmed, the data remains intact until the chip is replaced.

Detailed Application Field Plans

The AT27C040-15JI finds applications in various fields, including: 1. Embedded systems: Used for storing firmware or boot code in microcontroller-based systems. 2. Automotive electronics: Employed for storing critical data in automotive control units. 3. Industrial automation: Utilized for storing configuration data or program code in industrial control systems. 4. Consumer electronics: Used in devices such as gaming consoles, set-top boxes, and audio equipment for storing firmware or data.

Detailed and Complete Alternative Models

1. AT27C010-15PU: 1 megabit (128 kilobytes) capacity, 150 nanoseconds access time, 32-pin DIP package.
2. AT27C080-90JC: 8 megabit (1 megabyte) capacity, 90 nanoseconds access time, 32-pin PLCC package.
3. AT27C256R-70PU: 256 kilobit (32 kilobytes) capacity, 70 nanoseconds access time, 28-pin DIP package.

These alternative models offer different capacities, access times, and package types to suit specific requirements.

In conclusion, the AT27C040-15JI is a programmable read-only memory chip that provides reliable and non-volatile storage for critical data or program code. With its high storage capacity, fast access time, and low power consumption, it finds applications in various fields such as embedded systems, automotive electronics, industrial automation,