AT28C256-25UM/883

Product Overview

Category

AT28C256-25UM/883 belongs to the category of non-volatile memory devices.

Use

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

Characteristics

• Non-volatile: The stored data is retained even when power is removed.
• High capacity: The AT28C256-25UM/883 has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: It operates at a speed of 250 nanoseconds, allowing for quick data retrieval.
• Low power consumption: The device is designed to minimize power usage, making it suitable for battery-powered applications.

Package

The AT28C256-25UM/883 is available in a 28-pin ceramic DIP (Dual In-line Package) format.

Essence

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

Packaging/Quantity

The AT28C256-25UM/883 is typically packaged in tubes or trays, with each package containing a specified quantity of devices.

Specifications

• Operating Voltage: 5V
• Access Time: 250 ns
• Organization: 32K x 8 bits
• Endurance: 10,000 write cycles
• Data Retention: 10 years
• Temperature Range: -55°C to +125°C

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

• Easy integration: The AT28C256-25UM/883 can be easily integrated into various electronic systems due to its standard pin configuration.
• High reliability: It offers reliable data storage and retrieval, ensuring the integrity of stored information.
• Low power consumption: The device operates efficiently with low power requirements, making it suitable for battery-powered applications.
• Fast access time: With a quick access time of 250 ns, it enables rapid data retrieval.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity allows for storing a significant amount of digital information.
• Fast access time enables quick data retrieval.
• Low power consumption makes it suitable for portable and battery-powered devices.

Disadvantages

• Limited endurance: The AT28C256-25UM/883 has a limited number of write cycles before potential degradation.
• Relatively higher cost compared to other types of memory devices.

Working Principles

The AT28C256-25UM/883 is based on Electrically Erasable Programmable Read-Only Memory (EEPROM) technology. It utilizes a grid of memory cells that can be electrically programmed and erased. The device operates by applying appropriate voltage levels to the control pins, enabling read, write, or erase operations.

Detailed Application Field Plans

The AT28C256-25UM/883 finds applications in various electronic systems, including but not limited to: - Microcontrollers - Embedded systems - Industrial automation - Automotive electronics - Communication devices

Detailed and Complete Alternative Models

1. AT28C256-12PC - 256K (32K x 8) Parallel EEPROM, 120 ns Access Time, DIP Package.
2. AT28C256-15PU - 256K (32K x 8) Parallel EEPROM, 150 ns Access Time, PDIP Package.
3. AT28C256-20PI - 256K (32K x 8) Parallel EEPROM, 200 ns Access Time, PLCC Package.
4. AT28C256-25DM/883 - 256K (32K x 8) Parallel EEPROM, 250 ns Access Time, Ceramic