AT28HC64B-70SI

Product Overview

Category

AT28HC64B-70SI 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-70SI has a capacity of 64 kilobits (8 kilobytes).
• High-speed operation: It operates at a speed of 70 nanoseconds.
• Serial interface: The device communicates using a serial protocol.
• Low power consumption: It requires minimal power to operate efficiently.

Package

The AT28HC64B-70SI is available in a small outline integrated circuit (SOIC) package.

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-70SI is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

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

Detailed Pin Configuration

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

1. Chip Enable (CE): Enables the device for read/write operations.
2. Output Enable (OE): Controls the output buffers.
3. Write Enable (WE): Enables write operations.
4. Serial Data Input (SI): Receives data during write operations.
5. Serial Data Output (SO): Outputs data during read operations.
6. Serial Clock (SCK): Provides the clock signal for data transfer.
7. VCC: Power supply voltage.
8. Ground (GND): Common ground reference.

Functional Features

• Random access: Allows direct access to any memory location.
• Data protection: Supports hardware and software data protection mechanisms.
• High reliability: Offers robust data retention and endurance characteristics.
• Flexible interface: Compatible with various microcontrollers and systems.
• Low power consumption: Optimized for energy-efficient operation.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even in the absence of power.
• High capacity allows for storing a significant amount of data.
• Fast operation speed enables quick data access and transfer.
• Compact form factor makes it suitable for space-constrained applications.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Serial interface may result in slower data transfer rates compared to parallel interfaces.
• Relatively higher cost per unit compared to some alternative memory solutions.

Working Principles

The AT28HC64B-70SI utilizes a combination of electronic circuits and non-volatile memory cells to store and retrieve data. It employs a serial interface, allowing for efficient communication with external devices. The device operates by receiving commands and data through the input pins, which are then processed and stored in the memory cells. During read operations, the requested data is retrieved from the memory cells and transmitted through the output pins.

Detailed Application Field Plans

The AT28HC64B-70SI finds application in various fields, including but not limited to:

1. Embedded Systems: Used for program storage in microcontrollers and other embedded devices.
2. Consumer Electronics: Employed in devices such as smart TVs, set-top boxes, and gaming consoles for data storage.
3. Industrial Automation: Utilized in control systems and data loggers for storing critical information.
4. Automotive Electronics: Integrated into automotive systems for storing configuration data and firmware updates.
5. Medical Devices: Used for data storage in medical equipment, such as patient monitors and diagnostic devices.

Detailed and Complete Alternative Models

1. AT28C64B-15PU: Similar to the AT28HC64B-70SI but operates at a slower speed of 150 nanoseconds.
2. AT28HC256-90SU: Offers a higher capacity of 256 kilobits (32 kilobytes) with a faster operating speed of 90 nanoseconds.
3. AT28BV16-20SC: Provides a lower capacity of 16 kilobits (2 kilobytes) but operates at a faster speed of 20 nanoseconds.

These alternative models offer different combinations of capacity, speed, and other features, allowing users to choose the most suitable option for their specific requirements.

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