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.