AT28HC256F-90PI

Product Overview

Category

AT28HC256F-90PI belongs to the category of high-speed, low-power Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

This product is commonly used in electronic devices for non-volatile data storage. It allows for easy and efficient data retrieval even when power is turned off.

Characteristics

• High-speed operation
• Low power consumption
• Non-volatile memory
• Reliable data retention
• Easy to program and erase

Package

AT28HC256F-90PI comes in a standard 28-pin Plastic Dual In-Line Package (PDIP). This package provides mechanical protection and facilitates easy integration into electronic circuits.

Essence

The essence of AT28HC256F-90PI lies in its ability to store and retrieve data reliably, making it an essential component in various electronic devices.

Packaging/Quantity

AT28HC256F-90PI is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Operating Voltage: 2.7V - 5.5V
• Access Time: 90ns
• Memory Size: 256 kilobits (32 kilobytes)
• Organization: 32K x 8 bits
• Interface: Parallel
• Data Retention: 10 years
• Endurance: 100,000 write cycles

Detailed Pin Configuration

1. Chip Enable (CE)
2. Output Enable (OE)
3. Write Enable (WE)
4. Address Inputs (A0-A14)
5. Data Inputs/Outputs (DQ0-DQ7)
6. Supply Voltage (VCC)
7. Ground (GND)

Note: The pin configuration may vary depending on the manufacturer. Please refer to the datasheet for the specific pinout.

Functional Features

• High-speed operation allows for quick data access.
• Low power consumption ensures efficient use of energy.
• Non-volatile memory retains data even when power is turned off.
• Easy programming and erasing enable flexible data management.

Advantages and Disadvantages

Advantages

• High-speed operation enables fast data access.
• Low power consumption prolongs battery life in portable devices.
• Non-volatile memory ensures data retention without the need for constant power supply.
• Easy programming and erasing facilitate efficient data management.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively higher cost per bit compared to some alternative memory options.
• Susceptible to radiation-induced errors in certain environments.

Working Principles

AT28HC256F-90PI utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. The memory cells are organized into a grid, with each cell storing one bit of information. When data needs to be written or erased, specific voltage levels are applied to the appropriate pins, modifying the state of the memory cells accordingly.

Detailed Application Field Plans

AT28HC256F-90PI finds applications in various electronic devices, including but not limited to: - Microcontrollers - Embedded systems - Industrial control systems - Automotive electronics - Consumer electronics

The product's high-speed operation, low power consumption, and reliable data retention make it suitable for these applications.

Detailed and Complete Alternative Models

1. AT28C256: Similar to AT28HC256F-90PI, but with slower access time (150ns).
2. AT29C256: Flash memory alternative with faster erase times but limited write endurance.
3. 24LC256: I2C-compatible EEPROM with lower power consumption but slower access times.

These alternative models offer different features and specifications, allowing users to choose the most suitable option based on their specific requirements.

In conclusion, AT28HC256F-90PI is a high-speed, low-power EEPROM chip that provides reliable non-volatile data storage. Its characteristics, functional features, and wide range of applications make it a valuable component in various electronic devices.