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AT28HC64B-70SA

AT28HC64B-70SA

Product Overview

Category

AT28HC64B-70SA belongs to the category of non-volatile memory integrated circuits.

Use

This product is primarily used for data storage in various electronic devices and systems.

Characteristics

  • Non-volatile: The stored data is retained even when power is removed.
  • High capacity: The AT28HC64B-70SA has a capacity of 64 kilobits (8 kilobytes).
  • High speed: It operates at a speed of 70 nanoseconds.
  • Serial access: Data can be read or written sequentially.

Package

The AT28HC64B-70SA is available in a small outline package (SOIC) format.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile data storage in a compact form factor.

Packaging/Quantity

The AT28HC64B-70SA is typically packaged in reels, with each reel containing a specific quantity of chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

  • Capacity: 64 kilobits (8 kilobytes)
  • Access Time: 70 nanoseconds
  • Interface: Serial
  • Operating Voltage: 2.7V - 5.5V
  • Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT28HC64B-70SA has a total of 8 pins, each serving a specific purpose:

  1. Chip Enable (CE): Enables or disables the chip for operation.
  2. Output Enable (OE): Controls the output buffer.
  3. Write Enable (WE): Enables or disables write operations.
  4. Address Inputs (A0-A12): Selects the memory location for read or write operations.
  5. Data Input/Output (I/O): Transfers data to and from the chip.
  6. Power Supply (VCC): Provides the operating voltage.
  7. Ground (GND): Common ground reference.
  8. Not Connected (NC): Unused pin.

Functional Features

  • Random Access: Allows data to be read or written at any memory location.
  • High Reliability: The non-volatile nature of the memory ensures data integrity even during power loss.
  • Low Power Consumption: Operates with low power requirements, making it suitable for battery-powered devices.
  • Easy Integration: Can be easily interfaced with microcontrollers and other digital systems.

Advantages and Disadvantages

Advantages

  • Non-volatile storage ensures data retention.
  • Compact form factor.
  • High-speed access.
  • Wide operating voltage range.
  • Suitable for various applications.

Disadvantages

  • Limited capacity compared to other memory options.
  • Serial access may result in slower data transfer rates compared to parallel access.

Working Principles

The AT28HC64B-70SA utilizes a combination of electronic circuits and semiconductor memory cells to store and retrieve data. It employs a serial interface to communicate with external devices, allowing for efficient data transfer. The memory cells retain their state even when power is removed, ensuring data persistence.

Detailed Application Field Plans

The AT28HC64B-70SA finds applications in various fields, including but not limited to: 1. Consumer Electronics: Used in devices such as digital cameras, MP3 players, and smartwatches for data storage. 2. Automotive Systems: Employed in automotive electronics for storing critical information like engine parameters and diagnostic codes. 3. Industrial Control Systems: Utilized in control units and programmable logic controllers (PLCs) for data logging and configuration storage. 4. Communication Devices: Integrated into networking equipment and routers for storing firmware and configuration settings.

Detailed and Complete Alternative Models

  1. AT28C64B-15PU: Similar to AT28HC64B-70SA, but operates at a slower speed of 150 nanoseconds.
  2. AT28HC256-90SU: Offers higher capacity (256 kilobits) and operates at a speed of 90 nanoseconds.
  3. AT28C16-15PC: Lower capacity (16 kilobits) but operates at a faster speed of 15 nanoseconds.

These alternative models provide different options based on specific requirements such as capacity, speed, and cost considerations.

In conclusion, the AT28HC64B-70SA is a non-volatile memory integrated circuit that offers high-speed data storage in a compact form factor. With its reliable performance and wide range of applications, it serves as a crucial component in various electronic devices and systems.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací AT28HC64B-70SA v technických řešeních

Sure! Here are 10 common questions and answers related to the application of AT28HC64B-70SA in technical solutions:

  1. Q: What is the AT28HC64B-70SA? A: The AT28HC64B-70SA is a high-speed, low-power CMOS 64K (8K x 8) EEPROM memory chip.

  2. Q: What are the key features of the AT28HC64B-70SA? A: The key features include a 70ns access time, low power consumption, byte-wise programming, and a wide operating voltage range.

  3. Q: How can the AT28HC64B-70SA be used in technical solutions? A: It can be used for storing program code, data, or configuration settings in various electronic devices such as microcontrollers, embedded systems, and industrial control systems.

  4. Q: What is the maximum operating frequency of the AT28HC64B-70SA? A: The maximum operating frequency is determined by the access time, which is 70ns in this case. Therefore, the maximum operating frequency would be approximately 14.29 MHz.

  5. Q: Can the AT28HC64B-70SA be used for real-time applications? A: Yes, it can be used for real-time applications as long as the access time of 70ns meets the timing requirements of the specific application.

  6. Q: Is the AT28HC64B-70SA compatible with both 3.3V and 5V systems? A: Yes, the AT28HC64B-70SA has a wide operating voltage range of 2.7V to 5.5V, making it compatible with both 3.3V and 5V systems.

  7. Q: Can the AT28HC64B-70SA be reprogrammed multiple times? A: Yes, the AT28HC64B-70SA supports byte-wise programming, allowing for multiple reprogramming cycles.

  8. Q: What is the typical power consumption of the AT28HC64B-70SA? A: The typical power consumption is low, with active current typically around 10mA and standby current in the microampere range.

  9. Q: Does the AT28HC64B-70SA have any built-in security features? A: No, the AT28HC64B-70SA does not have built-in security features such as hardware encryption or write protection.

  10. Q: Is the AT28HC64B-70SA available in different package options? A: Yes, the AT28HC64B-70SA is available in various package options, including PDIP, PLCC, and SOIC, to suit different application requirements.

Please note that these answers are general and may vary depending on the specific technical solution and requirements.