AT28HC64B-12JU

Product Overview

Category

AT28HC64B-12JU belongs to the category of non-volatile memory integrated circuits.

Use

This product is primarily used for data storage in various electronic devices such as microcontrollers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The AT28HC64B-12JU retains stored data even when power is removed.
• High capacity: It has a storage capacity of 64 kilobits (8 kilobytes).
• High-speed operation: The device operates at a speed of 12 MHz.
• Low power consumption: It consumes minimal power during read and write operations.

Package

The AT28HC64B-12JU is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity even in the absence of power.

Packaging/Quantity

The AT28HC64B-12JU is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Memory Type: EEPROM (Electrically Erasable Programmable Read-Only Memory)
• Organization: 8K x 8 bits
• Supply Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Access Time: 120 ns
• Data Retention: 10 years
• Endurance: 100,000 write cycles

Detailed Pin Configuration

The AT28HC64B-12JU has a total of 32 pins. Here is the detailed pin configuration:

1. A14
2. A12
3. A7
4. A6
5. A5
6. A4
7. A3
8. A2
9. A1
10. A0
11. /OE (Output Enable)
12. /WE (Write Enable)
13. /CE (Chip Enable)
14. VCC (Power Supply)
15. NC (No Connection)
16. DQ0 (Data Input/Output 0)
17. DQ1 (Data Input/Output 1)
18. DQ2 (Data Input/Output 2)
19. DQ3 (Data Input/Output 3)
20. DQ4 (Data Input/Output 4)
21. DQ5 (Data Input/Output 5)
22. DQ6 (Data Input/Output 6)
23. DQ7 (Data Input/Output 7)
24. GND (Ground)
25. A8
26. A9
27. A11
28. A10
29. A13
30. WP (Write Protect)
31. NC (No Connection)
32. NC (No Connection)

Functional Features

• Byte-wise Read and Write: The AT28HC64B-12JU allows individual byte-level read and write operations.
• Hardware Data Protection: The device features a Write Protect pin (WP) that can be used to prevent accidental writes.
• High-Speed Operation: With an access time of 120 ns, the AT28HC64B-12JU ensures fast data retrieval and storage.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity for various applications.
• Low power consumption.
• Wide operating temperature range allows usage in different environments.

Disadvantages

• Relatively slower access time compared to some other memory technologies.
• Limited endurance with a maximum of 100,000 write cycles.

Working Principles

The AT28HC64B-12JU is based on EEPROM technology. It utilizes a grid of floating-gate transistors to store data. When a byte needs to be written, a high voltage is applied to the control gate, allowing electrons to tunnel onto the floating gate. This process traps charge, representing a logical "1" or "0". During read operations, the stored charge is sensed and amplified to retrieve the stored data.

Detailed Application Field Plans

The AT28HC64B-12JU finds applications in various fields, including: - Microcontrollers - Embedded systems - Consumer electronics - Automotive electronics - Industrial automation

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the AT28HC64B-12JU are: - AT28C64B-15PU - AT28C64B-20SU - AT28C64B-25PC - AT28C64B-30DM/883

These models have different specifications and package options, providing flexibility for different application requirements.