AT28C64X-20JC

Product Overview

Category

AT28C64X-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 AT28C64X-20JC has a storage capacity of 64 kilobits (8 kilobytes).
• Fast access time: It operates at a speed of 200 nanoseconds, allowing for quick data retrieval.
• Low power consumption: Designed to minimize power usage, making it suitable for battery-powered devices.

Package

The AT28C64X-20JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of AT28C64X-20JC lies in its ability to provide reliable and non-volatile storage for electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT28C64X-20JC chips.

Specifications

• Operating voltage: 5V
• Access time: 200 ns
• Organization: 8K x 8 bits
• Data retention: 10 years
• Endurance: 1,000,000 write cycles

Detailed Pin Configuration

The AT28C64X-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. VSS - Ground
10. OE - Output Enable
11. CE - Chip 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. VCC - Power Supply
25. A8 - Address Input
26. A9 - Address Input
27. A10 - Address Input
28. A11 - Address Input
29. A12 - Address Input
30. A13 - Address Input
31. A14 - Address Input
32. A15 - Address Input

Functional Features

• Byte-wide operations: The AT28C64X-20JC allows for individual byte read and write operations.
• Hardware and software data protection: It provides mechanisms to protect stored data from accidental modification.
• High-speed performance: With a fast access time of 200 ns, it ensures efficient data retrieval.

Advantages and Disadvantages

Advantages

• Non-volatile memory: Retains data even without power, ensuring data integrity.
• High capacity: Offers ample storage space for various applications.
• Low power consumption: Suitable for battery-powered devices, extending battery life.
• Fast access time: Enables quick data retrieval, enhancing system performance.

Disadvantages

• Limited endurance: The AT28C64X-20JC has a finite number of write cycles before it may become unreliable.
• Relatively larger package size: The PLCC package may require more space on the circuit board compared to smaller packages.

Working Principles

The AT28C64X-20JC utilizes a technology called Electrically Erasable Programmable Read-Only Memory (EEPROM). It stores data using electrically isolated floating-gate transistors, which can be programmed and erased electronically. When data is written, charges are trapped in the floating gate, altering the transistor's behavior and storing the desired information. The stored data can be read by applying appropriate voltage levels to the memory cells.

Detailed Application Field Plans

The AT28C64X-20JC finds applications in various electronic systems, including but not limited to: - Microcontrollers - Embedded systems - Industrial control systems - Automotive electronics - Communication devices

Detailed and Complete Alternative Models

1. AT28C64B-15PU: Similar to AT28C64X-20JC, but with a lower access time of 150 ns.
2. AT28C64D-20SU: Offers the same capacity and access time as AT28C64X-20JC but comes in a different package (SOIC).