AT28HC64B-90SU

Product Overview

Category

AT28HC64B-90SU 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: Retains data even when power is turned off.
• High capacity: The AT28HC64B-90SU has a storage capacity of 64 kilobits (8 kilobytes).
• High-speed operation: It operates at a speed of 90 nanoseconds.
• Serial access: Data can be accessed sequentially.

Package

The AT28HC64B-90SU is available in a small outline SOIC package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for electronic systems.

Packaging/Quantity

The AT28HC64B-90SU is typically packaged in reels, with each reel containing a specific quantity of devices. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Storage Capacity: 64 kilobits (8 kilobytes)
• Access Time: 90 nanoseconds
• Interface: Serial
• Operating Voltage: 2.7V - 5.5V
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT28HC64B-90SU has a total of 8 pins, which are as follows:

1. Chip Enable (CE)
2. Output Enable (OE)
3. Write Enable (WE)
4. Data Input/Output (I/O)
5. Address Inputs (A0-A6)
6. Power Supply (VCC)
7. Ground (GND)

Functional Features

• Chip Enable (CE): Activates the device for read or write operations.
• Output Enable (OE): Enables the output buffers, allowing data to be read from the device.
• Write Enable (WE): Enables write operations to the device.
• Data Input/Output (I/O): Bi-directional pin for data transfer.
• Address Inputs (A0-A6): Selects the memory location to be accessed.
• Power Supply (VCC): Provides the necessary power for the device.
• Ground (GND): Common ground reference.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data is retained even without power.
• High capacity: Sufficient storage for many applications.
• High-speed operation: Allows for quick data access.
• Serial access: Sequential data retrieval simplifies programming.

Disadvantages

• Limited storage capacity compared to other memory devices.
• Slower access time compared to some newer memory technologies.

Working Principles

The AT28HC64B-90SU utilizes a combination of electronic circuits and non-volatile memory cells to store and retrieve digital information. When powered on, the device can be accessed by providing the appropriate control signals and address inputs. The data stored in the memory cells can be read or written using the corresponding control signals.

Detailed Application Field Plans

The AT28HC64B-90SU finds application in various electronic systems, including but not limited to: - Embedded systems - Microcontrollers - Communication devices - Industrial automation - Automotive electronics

Detailed and Complete Alternative Models

1. AT28C64B-15PU: Similar specifications with a slower access time of 150 nanoseconds.
2. AT28HC256-12PC: Higher storage capacity of 256 kilobits (32 kilobytes) with a faster access time of 120 nanoseconds.
3. AT28BV16-20SC: Lower storage capacity of 16 kilobits (2 kilobytes) with a faster access time of 20 nanoseconds.

These alternative models offer different combinations of storage capacity, access time, and package options to suit specific application requirements.

In conclusion, the AT28HC64B-90SU is a non-volatile memory device with a storage capacity of 64 kilobits. It offers high-speed operation, serial access, and reliable data retention. While it has limitations in terms of storage capacity and access time compared to newer technologies, it remains a popular choice for various electronic systems.