AT28C64X-20PI

Product Overview

Category

AT28C64X-20PI 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: The stored data is retained even when power is removed.
• High capacity: The AT28C64X-20PI has a capacity of 64 kilobits (8 kilobytes).
• Low power consumption: It operates at low power levels, making it suitable for battery-powered devices.
• Fast access time: The device offers quick read and write operations.
• Durable: It can withstand multiple read and write cycles without degradation.

Package

The AT28C64X-20PI is available in a 28-pin plastic dual in-line package (PDIP).

Essence

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

Packaging/Quantity

The device is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

• Operating voltage: 5V
• Access time: 200 nanoseconds
• Data retention: 10 years
• Endurance: 1,000,000 write cycles
• Organization: 8,192 words x 8 bits

Detailed Pin Configuration

The AT28C64X-20PI has a total of 28 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. A8 - Address Input
11. A9 - Address Input
12. A10 - Address Input
13. OE - Output Enable
14. CE - Chip Enable
15. WE - Write Enable
16. I/O0 - Data Input/Output
17. I/O1 - Data Input/Output
18. I/O2 - Data Input/Output
19. I/O3 - Data Input/Output
20. I/O4 - Data Input/Output
21. I/O5 - Data Input/Output
22. I/O6 - Data Input/Output
23. I/O7 - Data Input/Output
24. NC - No Connection
25. GND - Ground
26. NC - No Connection
27. NC - No Connection
28. NC - No Connection

Functional Features

• Random access: The AT28C64X-20PI allows for direct access to any memory location.
• Byte-wise operations: It supports byte-level read and write operations.
• Hardware data protection: The device features a write protect pin (WE) to prevent accidental writes.
• High-speed operation: With an access time of 200 nanoseconds, it ensures efficient data retrieval.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data is retained even without power, ensuring information integrity.
• High capacity: The 64 kilobit capacity provides ample space for storing digital data.
• Low power consumption: It operates at low power levels, extending battery life in portable devices.
• Durability: The AT28C64X-20PI can withstand frequent read and write cycles without degradation.

Disadvantages

• Limited storage capacity: For applications requiring larger memory sizes, alternative models may be more suitable.
• Relatively slower access time compared to some modern memory technologies.

Working Principles

The AT28C64X-20PI utilizes a technology called Electrically Erasable Programmable Read-Only Memory (EEPROM). It stores data using floating-gate transistors that can be electrically programmed and erased. When data is written, charges are trapped in the floating gate, altering the transistor's behavior to represent either a "0" or a "1". The stored data can be read by applying appropriate voltage levels to the memory cells.

Detailed Application Field Plans

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

Detailed and Complete Alternative Models

• AT28C256: 256 kilobit capacity
• AT28C512: 512 kilobit capacity
• AT28C010: 1 megabit capacity
• AT28C040: 4 megabit capacity

These alternative models offer higher storage capacities for applications requiring more memory.

In conclusion, the AT28C64X-20PI is a non-volatile memory device with a capacity of