AT28HC64BF-90PU

Product Overview

Category

AT28HC64BF-90PU belongs to the category of non-volatile memory integrated circuits.

Use

It is primarily used for data storage and retrieval in various electronic devices.

Characteristics

• Non-volatile: Retains stored data even when power is turned off.
• High capacity: The AT28HC64BF-90PU has a capacity of 64 kilobits (8 kilobytes).
• High-speed operation: It operates at a speed of 90 nanoseconds.
• Low power consumption: Consumes minimal power during operation.
• Durable: Can withstand multiple read and write cycles without degradation.

Package

The AT28HC64BF-90PU is available in a plastic package, which provides protection and facilitates easy integration into electronic systems.

Essence

The essence of AT28HC64BF-90PU lies in its ability to store and retrieve data reliably and efficiently.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT28HC64BF-90PU chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Capacity: 64 kilobits (8 kilobytes)
• Operating Speed: 90 nanoseconds
• Supply Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years

Detailed Pin Configuration

The AT28HC64BF-90PU has a total of 28 pins, each serving a specific purpose. The pin configuration is as follows:

1. Chip Enable (CE)
2. Output Enable (OE)
3. Write Enable (WE)
4. Address Inputs (A0-A12)
5. Data Inputs/Outputs (DQ0-DQ7)
6. Supply Voltage (VCC)
7. Ground (GND)

Functional Features

• Random Access: Allows direct access to any memory location.
• Byte-Wise Read/Write: Enables reading and writing of individual bytes.
• Page Write: Supports simultaneous programming of multiple bytes within a page.
• Automatic Erase and Program: Simplifies the process of erasing and programming data.
• Hardware Data Protection: Provides protection against accidental write operations.

Advantages and Disadvantages

Advantages

• High capacity for storing large amounts of data.
• Fast operation speed allows for quick data retrieval.
• Low power consumption prolongs battery life in portable devices.
• Durable design ensures reliable performance over extended periods.
• Hardware data protection prevents accidental data corruption.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower compared to some newer memory technologies.
• Higher cost per unit compared to lower-capacity memory chips.

Working Principles

The AT28HC64BF-90PU utilizes a combination of electronic circuits and non-volatile memory cells to store and retrieve data. When powered on, the chip enables read or write operations based on the control signals received from the external system. The address inputs specify the memory location to be accessed, while the data inputs/outputs facilitate the transfer of information between the chip and the external system.

Detailed Application Field Plans

The AT28HC64BF-90PU finds applications in various electronic devices that require non-volatile memory for data storage. Some common application fields include:

1. Embedded Systems: Used in microcontrollers and other embedded systems for program storage.
2. Communication Devices: Employed in routers, modems, and networking equipment for configuration and firmware storage.
3. Automotive Electronics: Utilized in automotive systems for storing critical data such as calibration parameters and fault codes.
4. Industrial Control Systems: Integrated into industrial control systems for storing configuration settings and operational data.
5. Consumer Electronics: Found in devices like digital cameras, printers, and set-top boxes for storing user preferences and firmware.

Detailed and Complete Alternative Models

1. AT28C64B-15PU: Similar to AT28HC64BF-90PU but operates at a speed of 150 nanoseconds.
2. AT28HC256-12PU: Offers higher capacity (256 kilobits) but operates at a slower speed of 120 nanoseconds.
3. AT28HC16B-90PU: Lower capacity (16 kilobits) but operates at the same speed as AT28HC64BF-90PU.

These alternative models provide options with varying capacities and operating speeds to suit different application requirements.

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