AT28LV256-25JC

Product Overview

Category

AT28LV256-25JC belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for storing and retrieving digital information.

Characteristics

• Non-volatile memory: The AT28LV256-25JC retains stored data even when power is removed.
• High capacity: It has a storage capacity of 256 kilobits (32 kilobytes).
• Low power consumption: This IC operates on low power, making it suitable for battery-powered devices.
• Fast access time: With a speed rating of 25 nanoseconds, it provides quick data retrieval.

Package

The AT28LV256-25JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

This IC is an electrically erasable programmable read-only memory (EEPROM) chip. It allows users to write and erase data multiple times.

Packaging/Quantity

The AT28LV256-25JC is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply voltage: 2.7V - 5.5V
• Operating temperature range: -40°C to +85°C
• Input/output voltage levels: TTL-compatible
• Data retention: 10 years minimum
• Endurance: 100,000 write/erase cycles

Detailed Pin Configuration

The AT28LV256-25JC has a total of 32 pins. Here is the 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. /OE
13. /WE
14. VCC
15. A8
16. A9
17. A11
18. A10
19. I/O0
20. I/O1
21. I/O2
22. I/O3
23. I/O4
24. I/O5
25. I/O6
26. I/O7
27. CE1
28. CE2
29. CE3
30. /RESET
31. GND
32. NC

Functional Features

• Byte-wide operations: The AT28LV256-25JC allows individual byte-level read and write operations.
• Hardware data protection: It provides a hardware method to protect critical data from accidental modification.
• Automatic sleep mode: This IC enters a low-power sleep mode when not in use, conserving energy.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity for various applications.
• Low power consumption extends battery life.
• Fast access time enables quick data retrieval.

Disadvantages

• Limited endurance of 100,000 write/erase cycles.
• Relatively higher cost compared to other memory technologies.
• Requires careful handling to prevent damage due to electrostatic discharge (ESD).

Working Principles

The AT28LV256-25JC utilizes electrically erasable programmable read-only memory (EEPROM) technology. It stores data by trapping electrical charges within floating gate transistors. These charges can be erased and reprogrammed using specific voltage levels applied to the control pins.

Detailed Application Field Plans

The AT28LV256-25JC finds applications in various electronic devices, including but not limited to: - Microcontrollers - Embedded systems - Industrial automation equipment - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

• AT28C256: Similar EEPROM IC with a slower access time of 90 nanoseconds.
• AT29C256: Flash memory IC with faster erase and write times but requires higher voltage levels.
• AT27C256R: One-time programmable (OTP) EPROM IC with a longer data retention period.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

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