AT28HC64BF-70PU

Product Overview

Category

AT28HC64BF-70PU 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 AT28HC64BF-70PU 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 70 nanoseconds.
• Low power consumption: It consumes minimal power during read and write operations.

Package

The AT28HC64BF-70PU is available in a plastic DIP (Dual In-line Package) with 28 pins.

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 AT28HC64BF-70PU is typically packaged in tubes or trays, with each package containing a specified quantity of integrated circuits.

Specifications

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

Detailed Pin Configuration

The AT28HC64BF-70PU has a total of 28 pins, each serving a specific purpose. The pin configuration is as follows:

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. CE: Chip Enable
12. OE: Output Enable
13. WE: Write Enable
14. I/O0: Data Input/Output
15. I/O1: Data Input/Output
16. I/O2: Data Input/Output
17. I/O3: Data Input/Output
18. I/O4: Data Input/Output
19. I/O5: Data Input/Output
20. I/O6: Data Input/Output
21. I/O7: Data Input/Output
22. NC: No Connection
23. GND: Ground
24. NC: No Connection
25. NC: No Connection
26. NC: No Connection
27. NC: No Connection
28. NC: No Connection

Functional Features

• Random Access: The AT28HC64BF-70PU allows for random access to any memory location, enabling efficient data retrieval.
• High-Speed Operation: With a speed of 70 nanoseconds, this device ensures fast read and write operations.
• Low Power Consumption: The product is designed to minimize power consumption during both active and standby modes.
• Hardware and Software Compatibility: The AT28HC64BF-70PU is compatible with various microcontrollers and programming interfaces, making it versatile for integration into different systems.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even in the absence of power.
• High storage capacity of 64 kilobits.
• Fast operation speed of 70 nanoseconds.
• Low power consumption.
• Compatibility with different systems and microcontrollers.

Disadvantages

• Limited endurance of 100,000 write cycles.
• Relatively higher cost compared to other memory technologies.

Working Principles

The AT28HC64BF-70PU utilizes EEPROM technology for data storage. It consists of a grid of memory cells that can be electrically programmed and erased. The device operates by applying appropriate voltage levels to the address, chip enable, output enable, and write enable pins. These signals control the read and write operations, allowing data to be stored or retrieved from specific memory locations.

Detailed Application Field Plans

The AT28HC64BF-70PU finds applications in various fields, including: 1. Microcontroller-based systems: Used for program storage and data logging. 2. Embedded systems: Provides non-volatile memory for critical system parameters and configurations. 3. Consumer electronics: Utilized in devices such as smart TVs, set-top boxes, and gaming consoles for firmware storage and data retention.

Detailed and Complete Alternative Models

1. AT28C64B-15PU: Similar to AT28HC64BF-70PU but with a slower speed of 150 nanoseconds.
2. AT28HC256