AT28C256E-15JU

Product Overview

Category

AT28C256E-15JU 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-15JU 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).
• Low power consumption: AT28C256E-15JU operates at low power levels, making it suitable for battery-powered devices.

Package

AT28C256E-15JU is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of AT28C256E-15JU lies in its ability to store and retain digital information reliably, even in the absence of power.

Packaging/Quantity

This product is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Operating Voltage: 2.7V - 5.5V
• Access Time: 150 nanoseconds
• Erase/Write Cycle Endurance: 10,000 cycles
• 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. VCC: Power Supply
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
29. VSS: Ground
30. NC: No Connection
31. NC: No Connection
32. /WP: Write Protect

Functional Features

• High-speed operation: AT28C256E-15JU offers fast access times, allowing for efficient data retrieval and storage.
• Easy integration: The chip can be easily interfaced with various microcontrollers and electronic systems.
• Reliable data retention: The EEPROM technology ensures that stored data remains intact for extended periods.
• Flexible programming: AT28C256E-15JU supports both byte-level and page-level programming, providing versatility in data manipulation.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data persistence even during power loss.
• Electrically erasable and reprogrammable, allowing for easy updates and modifications.
• High capacity enables storage of significant amounts of data.
• Low power consumption makes it suitable for battery-powered devices.

Disadvantages

• Relatively slower access times compared to other types of memory.
• Limited endurance with a maximum of 10,000 erase/write cycles.
• Higher cost per bit compared to some alternative memory technologies.

Working Principles

AT28C256E-15JU utilizes EEPROM technology, which employs a floating gate transistor structure to store and retain data. The memory cells consist of transistors that can be electrically programmed or erased. When a specific voltage is applied to the control pins, the stored charge in the floating gate can be modified, allowing data to be written or erased.

Detailed Application Field Plans

AT28C256E-15JU finds applications in various fields, including: 1. Embedded systems: Used for firmware storage in microcontrollers and system-on-chip (SoC) devices. 2. Computer peripherals: Employed in printers, scanners, and network devices for storing configuration data. 3. Consumer electronics: Integrated into smart TVs, set-top boxes, and gaming consoles for data storage purposes. 4. Automotive electronics: Utilized in automotive control units for