AT28HC256-12JU-070

Product Overview

Category

AT28HC256-12JU-070 belongs to the category of high-speed, low-power Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

This product is commonly used in various electronic devices for non-volatile data storage. It allows for easy and efficient data retrieval even when power is removed.

Characteristics

• High-speed operation
• Low power consumption
• Non-volatile memory
• Reliable data retention
• Easy to interface with microcontrollers

Package

AT28HC256-12JU-070 is available in a 32-pin plastic J-lead chip carrier package.

Essence

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

Packaging/Quantity

AT28HC256-12JU-070 is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Operating Voltage: 2.7V - 5.5V
• Access Time: 120ns
• Memory Size: 256 kilobits (32 kilobytes)
• Organization: 32K x 8 bits
• Interface: Parallel
• Data Retention: 10 years
• Endurance: 100,000 write cycles

Detailed Pin Configuration

1. A0
2. A1
3. A2
4. A3
5. A4
6. A5
7. A6
8. A7
9. VSS (Ground)
10. CE (Chip Enable)
11. OE (Output Enable)
12. WE (Write Enable)
13. I/O0
14. I/O1
15. I/O2
16. I/O3
17. I/O4
18. I/O5
19. I/O6
20. I/O7
21. NC (No Connection)
22. VCC (Power Supply)
23. NC
24. NC
25. NC
26. NC
27. NC
28. NC
29. NC
30. NC
31. NC
32. NC

Functional Features

• High-speed operation allows for quick data access.
• Low power consumption ensures efficient use of energy.
• Non-volatile memory retains data even when power is removed.
• Easy interface with microcontrollers simplifies integration into electronic systems.

Advantages and Disadvantages

Advantages

• Fast access time improves overall system performance.
• Low power consumption prolongs battery life in portable devices.
• Reliable data retention ensures data integrity over long periods.
• Easy integration with microcontrollers reduces development complexity.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Higher cost per bit compared to some alternative memory options.
• Limited endurance may require careful management of write cycles in certain applications.

Working Principles

AT28HC256-12JU-070 utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. The memory cells are organized in a grid-like structure, with each cell storing one bit of information. When data needs to be written or read, the appropriate control signals are applied to the chip's pins, enabling the desired operation.

Detailed Application Field Plans

AT28HC256-12JU-070 finds application in various electronic devices, including but not limited to: - Embedded systems - Automotive electronics - Industrial control systems - Consumer electronics - Medical devices

Detailed and Complete Alternative Models

1. AT28C256-15PU: Similar specifications, but with a slower access time of 150ns.
2. AT28HC256-12PC: Same specifications, but in a different package (40-pin DIP).
3. AT28HC256E-12SU: Enhanced version with extended temperature range (-40°C to 85°C).

These alternative models offer similar functionality and can be considered based on specific application requirements.

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