AT28BV64B-20JC

Product Overview

Category

AT28BV64B-20JC 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: Retains data even when power is turned off.
• High capacity: The AT28BV64B-20JC has a storage capacity of 64 kilobits (8 kilobytes).
• Fast access time: It operates at a speed of 200 nanoseconds.
• Low power consumption: Designed to minimize power usage.
• Reliable: Offers high endurance and data retention capabilities.

Package

The AT28BV64B-20JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of AT28BV64B-20JC lies in its ability to provide non-volatile memory storage with high capacity, fast access time, and low power consumption.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT28BV64B-20JC chips. The exact quantity may vary depending on the manufacturer's specifications.

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: 200 ns
• Interface: Parallel
• Data Retention: 10 years
• Endurance: 100,000 write cycles

Detailed Pin Configuration

The AT28BV64B-20JC has a total of 32 pins. Here is the 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. CE - Chip Enable
11. OE - Output 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. NC - No Connection
23. NC - No Connection
24. GND - Ground
25. NC - No Connection
26. NC - No Connection
27. NC - No Connection
28. NC - No Connection
29. NC - No Connection
30. NC - No Connection
31. NC - No Connection
32. NC - No Connection

Functional Features

• Byte-wise Read and Write: Allows individual bytes to be read from or written to the memory.
• Page Write Mode: Enables faster programming by allowing multiple bytes to be written in a single operation.
• Software Data Protection: Provides protection against accidental writes by requiring specific command sequences for write operations.
• Hardware Data Protection: Offers additional security by preventing write operations when certain pins are held at specified voltage levels.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity suitable for various applications.
• Fast access time allows for quick retrieval of information.
• Low power consumption helps conserve energy.
• Reliable endurance and data retention characteristics.

Disadvantages

• Limited write endurance compared to other memory technologies.
• Relatively higher cost per bit compared to some alternative memory options.
• Requires specific command sequences for write operations, which may add complexity to the system design.

Working Principles

The AT28BV64B-20JC utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It stores information in a grid of memory cells that can be individually addressed and modified. The memory cells consist of floating-gate transistors that can trap or release electrical charges to represent binary data (0s and 1s). When data needs to be written, the appropriate voltage levels are applied to the control pins, enabling the desired changes in the memory cells. During read operations, the stored charges are sensed and converted back into digital data.

Detailed Application Field Plans

The AT28BV64B-20JC finds applications in various electronic systems, including but not limited to: - Embedded systems - Consumer electronics - Industrial automation - Automotive electronics - Medical devices