AT28C256-15LM/883

Product Overview

Category

AT28C256-15LM/883 belongs to the category of non-volatile memory devices.

Use

It 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 AT28C256-15LM/883 has a storage capacity of 256 kilobits (32 kilobytes).
• Low power consumption: It operates at low power levels, making it suitable for battery-powered devices.
• Fast access time: The device offers a fast access time of 150 nanoseconds.

Package

The AT28C256-15LM/883 comes in a 28-pin ceramic dual-inline package (DIP).

Essence

The essence of AT28C256-15LM/883 lies in its ability to provide reliable and non-volatile storage for electronic systems.

Packaging/Quantity

This product is typically packaged in tubes or trays, with each containing a specific quantity of AT28C256-15LM/883 chips.

Specifications

• Organization: 32K x 8 bits
• Supply voltage: 4.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Data retention: 10 years
• Endurance: 10,000 write cycles

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. VSS - Ground
10. A8 - Address Input
11. A9 - Address Input
12. A10 - Address Input
13. OE - Output Enable
14. CE - Chip Enable
15. WE - Write Enable
16. I/O0 - Data Input/Output
17. I/O1 - Data Input/Output
18. I/O2 - Data Input/Output
19. I/O3 - Data Input/Output
20. VCC - Supply Voltage
21. I/O4 - Data Input/Output
22. I/O5 - Data Input/Output
23. I/O6 - Data Input/Output
24. I/O7 - Data Input/Output
25. NC - No Connection
26. NC - No Connection
27. NC - No Connection
28. NC - No Connection

Functional Features

• Random access: The AT28C256-15LM/883 allows for random access to any memory location.
• Byte-wise programming: It supports byte-wise programming, enabling efficient data storage and retrieval.
• Hardware and software protection: The device offers protection mechanisms to prevent accidental writes or unauthorized access.
• High reliability: With its non-volatile nature and robust design, the AT28C256-15LM/883 ensures data integrity and long-term reliability.

Advantages and Disadvantages

Advantages

• Non-volatile storage
• High capacity
• Low power consumption
• Fast access time
• Reliable data retention

Disadvantages

• Limited endurance (10,000 write cycles)
• Relatively larger physical size compared to newer memory technologies

Working Principles

The AT28C256-15LM/883 utilizes a floating-gate transistor technology known as Electrically Erasable Programmable Read-Only Memory (EEPROM). It stores data by trapping electric charge in the floating gate of each memory cell. This trapped charge determines the logic state of the cell, allowing for data storage. The device can be programmed and erased electrically, making it convenient for use in various applications.

Detailed Application Field Plans

The AT28C256-15LM/883 finds applications in a wide range of electronic systems, including but not limited to: - Microcontrollers - Embedded systems - Industrial control systems - Automotive electronics - Communication devices - Medical equipment

Detailed and Complete Alternative Models

1. AT28C256-12PC: Similar to AT28C256-15LM/883 but with a faster access time of 120 nanoseconds.
2. AT28C256-20PI: Similar to AT28C256-15LM/883 but with a slower access time of 200 nanoseconds.
3. AT28C256-25DM/883: Similar to AT28C256-15LM/883 but with a lower operating temperature range (-55°C to +125°C).

These alternative models offer different specifications and may be suitable for specific application requirements.

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