AT28HC256-12JI

Product Overview

Category

AT28HC256-12JI belongs to the category of high-speed, low-power Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

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

Characteristics

• High-speed operation
• Low power consumption
• Non-volatile memory
• Large storage capacity
• Reliable data retention
• Easy to interface with other electronic components

Package

AT28HC256-12JI is available in a 32-pin plastic dual in-line package (PDIP).

Essence

The essence of AT28HC256-12JI lies in its ability to provide reliable and non-volatile data storage in electronic devices, ensuring quick access to stored information.

Packaging/Quantity

AT28HC256-12JI is typically packaged in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Operating Voltage: 2.7V - 5.5V
• Access Time: 120ns
• Organization: 32K x 8 bits
• Endurance: 100,000 write cycles
• Data Retention: 10 years
• Interface: Parallel

Detailed Pin Configuration

1. A0
2. A1
3. A2
4. A3
5. A4
6. A5
7. A6
8. A7
9. A8
10. A9
11. A10
12. A11
13. A12
14. A13
15. A14
16. A15
17. /OE (Output Enable)
18. /WE (Write Enable)
19. /CE (Chip Enable)
20. VCC (Power Supply)
21. NC (No Connection)
22. D0
23. D1
24. D2
25. D3
26. D4
27. D5
28. D6
29. D7
30. /BYTE (Byte/Word Organization)
31. GND (Ground)
32. NC (No Connection)

Functional Features

• High-speed operation allows for quick data access and retrieval.
• Low power consumption ensures efficient use of energy in electronic devices.
• Non-volatile memory retains stored data even when power is disconnected.
• Large storage capacity of 256 kilobits provides ample space for data storage.
• Easy interface with other electronic components simplifies integration into various systems.

Advantages and Disadvantages

Advantages

• Fast access time enhances overall system performance.
• Low power consumption prolongs battery life in portable devices.
• Non-volatile memory ensures data integrity during power cycles.
• Large storage capacity accommodates extensive data requirements.
• Easy integration simplifies the design and development process.

Disadvantages

• Relatively higher cost compared to other types of memory chips.
• Limited endurance may require careful management of write cycles.
• Parallel interface may not be suitable for all applications.

Working Principles

AT28HC256-12JI utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. The chip stores information in a grid of memory cells, where each cell represents a bit of data. When data needs to be written or read, specific electrical signals are applied to the appropriate pins, enabling the desired operation.

Detailed Application Field Plans

AT28HC256-12JI finds application in various fields, including: - Microcontrollers - Computers - Consumer electronics - Automotive systems - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to AT28HC256-12JI include: - AT28C256-15PU - AT28C256-20PC - AT28C256-25PI - AT28C256-30DM/883

These models offer similar functionality and characteristics, providing options for different application requirements.

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