AT28C256E-15UM/883-815

Product Overview

Category

AT28C256E-15UM/883-815 belongs to the category of non-volatile memory devices.

Use

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

Characteristics

• Non-volatile: The stored data is retained even when power is removed.
• High capacity: The AT28C256E-15UM/883-815 has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: It operates with a maximum access time of 150 nanoseconds.
• Low power consumption: This device is designed to minimize power consumption during operation.
• Durable: The AT28C256E-15UM/883-815 is built to withstand harsh environmental conditions.

Package

The AT28C256E-15UM/883-815 is available in a 28-pin ceramic dual-inline package (DIP).

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for digital data in electronic systems.

Packaging/Quantity

The AT28C256E-15UM/883-815 is typically packaged in tubes or trays, with a quantity of 25 units per tube/tray.

Specifications

• Organization: 32K x 8 bits
• Supply voltage: 5V ±10%
• Operating temperature range: -55°C to +125°C
• Maximum access time: 150 ns
• Standby current: 100 μA (typical)
• Package dimensions: 0.6" x 0.3" x 0.1"

Detailed Pin Configuration

The AT28C256E-15UM/883-815 has a total of 28 pins, each serving a specific function. Here is the 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. VCC - Power Supply
10. OE - Output Enable
11. CE - Chip Enable
12. WE - Write Enable
13. I/O0 - Data Input/Output
14. I/O1 - Data Input/Output
15. I/O2 - Data Input/Output
16. I/O3 - Data Input/Output
17. I/O4 - Data Input/Output
18. I/O5 - Data Input/Output
19. I/O6 - Data Input/Output
20. I/O7 - Data Input/Output
21. NC - No Connection
22. GND - Ground
23. NC - No Connection
24. NC - No Connection
25. NC - No Connection
26. NC - No Connection
27. NC - No Connection
28. NC - No Connection

Functional Features

• Random access: The AT28C256E-15UM/883-815 allows for random access to any memory location.
• Byte-wise programming: It supports byte-wise programming, enabling efficient data storage and retrieval.
• Hardware data protection: This device features a hardware write-protect pin (WE) to prevent accidental data modification.
• High reliability: The AT28C256E-15UM/883-815 is designed with built-in error detection and correction mechanisms, ensuring reliable data storage.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity for various applications.
• Fast access time allows for quick data retrieval.
• Low power consumption prolongs battery life in portable devices.
• Durable construction withstands harsh environmental conditions.

Disadvantages

• Limited storage capacity compared to newer memory technologies.
• Relatively slower access time compared to modern memory devices.
• Higher cost per bit compared to some other memory options.

Working Principles

The AT28C256E-15UM/883-815 utilizes a technology called Electrically Erasable Programmable Read-Only Memory (EEPROM). It stores data by trapping electric charges within floating gate transistors. These charges can be selectively removed or added using electrical signals, allowing for data modification and retention.

During read operations, the stored charge is measured to determine the logic state of each memory cell. Write operations involve applying specific voltage levels to program or erase individual memory cells.

Detailed Application Field Plans

The AT28C256E-15UM/883-815 finds applications in various electronic systems, including but not limited to: - Embedded systems - Automotive electronics - Industrial control systems - Communication devices - Medical equipment

Its non-volatile nature, high reliability, and