AT28C16-15SI

Product Overview

Category

AT28C16-15SI belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

The AT28C16-15SI chip is primarily used for non-volatile data storage in various electronic devices. It allows for easy and efficient data retrieval even when power is turned off.

Characteristics

• Non-volatile: The stored data remains intact even without power supply.
• Electrically erasable: The chip can be erased and reprogrammed multiple times.
• High storage capacity: The AT28C16-15SI has a storage capacity of 16 kilobits.
• Fast access time: With a speed of 150 nanoseconds, it enables quick data retrieval.
• Low power consumption: The chip operates on low power, making it suitable for battery-powered devices.

Package

The AT28C16-15SI chip is available in a standard 24-pin plastic dual in-line package (PDIP).

Essence

The essence of the AT28C16-15SI chip lies in its ability to store and retrieve data reliably, even in the absence of power. This makes it an essential component in many electronic devices that require non-volatile memory.

Packaging/Quantity

The AT28C16-15SI chip 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 manufacturer.

Specifications

• Storage Capacity: 16 kilobits (2 kilobytes)
• Access Time: 150 nanoseconds
• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years

Detailed Pin Configuration

The AT28C16-15SI chip has a total of 24 pins, each serving a specific function. The pin configuration is as follows:

1. A0: Address Input
2. A1: Address Input
3. A2: Address Input
4. A3: Address Input
5. A4: Address Input
6. A5: Address Input
7. A6: Address Input
8. A7: Address Input
9. VSS: Ground
10. A8: Address Input
11. CE: Chip Enable
12. OE: Output Enable
13. WE: Write Enable
14. I/O0: Data Input/Output
15. I/O1: Data Input/Output
16. I/O2: Data Input/Output
17. I/O3: Data Input/Output
18. I/O4: Data Input/Output
19. I/O5: Data Input/Output
20. I/O6: Data Input/Output
21. I/O7: Data Input/Output
22. NC: No Connection
23. VCC: Power Supply
24. NC: No Connection

Functional Features

The AT28C16-15SI chip offers several functional features that enhance its usability and performance:

• Byte-wise Read and Write Operations: The chip allows for individual byte-level read and write operations, providing flexibility in data manipulation.
• Hardware and Software Data Protection: It incorporates mechanisms to protect stored data from accidental modification or erasure, ensuring data integrity.
• High-Speed Operation: With an access time of 150 nanoseconds, the chip enables fast data retrieval and processing.
• Low Power Consumption: The AT28C16-15SI operates on low power, making it suitable for battery-powered devices.
• Extended Temperature Range: It can withstand a wide temperature range from -40°C to +85°C, making it suitable for various environments.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even without power supply.
• Electrically erasable and reprogrammable, allowing for easy updates and modifications.
• High storage capacity of 16 kilobits provides ample space for data storage.
• Fast access time enables quick data retrieval and processing.
• Low power consumption makes it suitable for battery-powered devices.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower access time compared to some modern memory technologies.
• Requires careful handling during programming and erasing operations to prevent data loss.

Working Principles

The AT28C16-15SI chip utilizes a combination of electronic circuits and memory cells to store and retrieve data. It employs a technique called floating-gate transistors, where charges are trapped in the gate region of specific transistors to represent binary data (0 or 1). These charges can be electrically manipulated to change the stored data.

During read operations, the chip activates the appropriate circuitry to access the desired memory location and retrieve the stored data.