AT28C256E-15SI

Product Overview

Category

AT28C256E-15SI belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is commonly used for non-volatile storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile: The data stored in AT28C256E-15SI remains even when power is removed.
• Electrically erasable: The memory can be erased and reprogrammed electronically.
• High capacity: The chip has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: The access time is 150 nanoseconds, allowing for quick retrieval of data.
• Low power consumption: AT28C256E-15SI operates at low power levels, making it suitable for battery-powered devices.

Package

AT28C256E-15SI is available in a 28-pin Small-Outline Integrated Circuit (SOIC) package.

Essence

The essence of AT28C256E-15SI lies in its ability to store and retrieve data reliably in a compact and efficient manner. It provides a non-volatile memory solution with fast access times and low power consumption.

Packaging/Quantity

AT28C256E-15SI 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 and supplier.

Specifications

• Storage Capacity: 256 kilobits (32 kilobytes)
• Access Time: 150 nanoseconds
• Supply Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years

Detailed Pin Configuration

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. A8: Address Input
10. A9: Address Input
11. A10: Address Input
12. A11: Address Input
13. A12: Address Input
14. A13: Address Input
15. A14: Address Input
16. A15: Address Input
17. /OE: Output Enable
18. /WE: Write Enable
19. /CE: Chip Enable
20. VSS: Ground
21. DQ0: Data Input/Output
22. DQ1: Data Input/Output
23. DQ2: Data Input/Output
24. DQ3: Data Input/Output
25. DQ4: Data Input/Output
26. DQ5: Data Input/Output
27. DQ6: Data Input/Output
28. DQ7: Data Input/Output

Functional Features

• Byte-Wide Operation: AT28C256E-15SI supports byte-level read and write operations.
• High-Speed Performance: The chip offers fast access times, allowing for efficient data retrieval and storage.
• Low Power Consumption: AT28C256E-15SI operates at low power levels, making it suitable for energy-efficient devices.
• Extended Data Retention: The memory retains stored data for up to 10 years, ensuring long-term reliability.

Advantages and Disadvantages

Advantages

• Non-volatile storage solution
• Fast access times
• Low power consumption
• Compact package size
• Extended data retention

Disadvantages

• Limited storage capacity compared to other memory technologies
• Requires specific programming equipment for reprogramming

Working Principles

AT28C256E-15SI utilizes a floating-gate transistor technology to store and retrieve data. The memory cells consist of transistors that can be electrically programmed and erased. When data is written, charges are trapped in the floating gate, altering the transistor's behavior. This alteration allows the stored data to be read back accurately.

Detailed Application Field Plans

AT28C256E-15SI finds applications in various fields, including:

1. Microcontrollers: Used for storing firmware, configuration settings, and lookup tables.
2. Computers: Employed as non-volatile storage for BIOS (Basic Input/Output System) and firmware updates.
3. Consumer Electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles for data storage purposes.

Detailed and Complete Alternative Models

1. AT28C256-15PU: Similar to AT28C256E-15SI but available in a 28-pin DIP package.
2. AT28C256R-15SC: Offers the same specifications