AT27C040-15JC

Product Overview

Category

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

Use

This chip is commonly used for storing permanent data that needs to be retained even when power is turned off. It allows users to program and store data that cannot be modified or erased.

Characteristics

• Non-volatile: The stored data remains intact even without power.
• High storage capacity: The AT27C040-15JC has a capacity of 4 megabits (512 kilobytes).
• Fast access time: The chip has a maximum access time of 150 nanoseconds.
• Low power consumption: It operates on low power, making it suitable for battery-powered devices.

Package

The AT27C040-15JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of the AT27C040-15JC is its ability to provide non-volatile storage for critical data in various electronic applications.

Packaging/Quantity

The chip is typically packaged in tubes or trays, with quantities varying based on customer requirements.

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 AT27C040-15JC supports parallel programming, allowing for efficient data storage.
• High reliability: The chip offers reliable data retention and endurance, ensuring long-term usability.
• Compatibility: It is compatible with a wide range of microcontrollers and other digital devices.
• Security: The chip features a write protection mechanism to prevent accidental modification or erasure of stored data.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity even during power loss.
• High storage capacity allows for storing large amounts of critical data.
• Fast access time enables quick retrieval of information.
• Low power consumption makes it suitable for battery-powered devices.

Disadvantages

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

Working Principles

The AT27C040-15JC operates based on the principle of electrical charge trapping in a floating gate structure. During programming, a high voltage is applied to the control gate, causing electrons to tunnel through a thin oxide layer onto the floating gate. This trapped charge alters the threshold voltage, effectively storing the desired data. During read operations, the stored charge is detected, allowing the retrieval of the programmed data.

Detailed Application Field Plans

The AT27C040-15JC finds applications in various fields, including:

1. Embedded Systems: Used for firmware storage in microcontrollers and other embedded devices.
2. Automotive Electronics: Employed for storing critical data in automotive control units and infotainment systems.
3. Industrial Automation: Utilized for program storage in PLCs (Programmable Logic Controllers) and industrial control systems.
4. Consumer Electronics: Integrated into devices like gaming consoles, set-top boxes, and home appliances for non-volatile data storage.

Detailed and Complete Alternative Models

1. AT27C010-15PC: 1 Megabit (128 Kilobytes) capacity, 150 nanoseconds access time, DIP package.
2. AT27C080-90JC: 8 Megabit (1 Megabyte) capacity, 90 nanoseconds access time, PLCC package.
3. AT27C256R-45PU: 256 Kilobit (32 Kilobytes) capacity, 45 nanoseconds access time, DIP package.

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

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