AT28HC256F-90TC

Product Overview

Category

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

Use

This product is commonly used in various electronic devices for non-volatile data storage. It allows for easy and efficient data retrieval and modification.

Characteristics

• High-speed operation
• High-density storage capacity
• Non-volatile memory
• Electrically erasable and programmable
• Reliable and durable

Package

AT28HC256F-90TC is available in a compact Thin Small Outline Package (TSOP). This package ensures easy integration into electronic circuit boards.

Essence

The essence of AT28HC256F-90TC lies in its ability to provide high-speed, high-density, and reliable non-volatile memory storage for electronic devices.

Packaging/Quantity

AT28HC256F-90TC 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
• Capacity: 256 kilobits (32 kilobytes)
• Access Time: 90 nanoseconds
• Interface: Serial Peripheral Interface (SPI)
• Data Retention: Up to 10 years
• Endurance: 100,000 write cycles

Detailed Pin Configuration

The AT28HC256F-90TC chip has a total of 28 pins, which are assigned specific functions. The pin configuration is as follows:

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)

Functional Features

• High-speed data access and transfer
• Low power consumption
• Easy integration with existing electronic systems
• Reliable data retention and endurance
• Flexible write and erase operations
• Compatibility with various microcontrollers and interfaces

Advantages and Disadvantages

Advantages

• Fast operation speed allows for efficient data retrieval and modification.
• High-density storage capacity enables the storage of large amounts of data in a compact chip.
• Electrically erasable and programmable nature allows for easy updates and modifications.
• Reliable and durable, ensuring long-term data integrity.

Disadvantages

• Limited storage capacity compared to other memory technologies like Flash memory.
• Higher cost per unit compared to some alternative memory solutions.
• Requires additional circuitry for proper interfacing with microcontrollers.

Working Principles

AT28HC256F-90TC utilizes EEPROM technology, which allows for non-volatile data storage. The chip consists of an array of memory cells that can be electrically programmed and erased. Data is stored by applying specific voltage levels to the memory cells, and it can be read by sensing the voltage levels on the data lines.

Detailed Application Field Plans

AT28HC256F-90TC finds applications in various electronic devices, including but not limited to: - Consumer electronics (e.g., smartphones, tablets, digital cameras) - Automotive electronics (e.g., engine control units, infotainment systems) - Industrial automation (e.g., programmable logic controllers, robotics) - Medical devices (e.g., patient monitoring systems, diagnostic equipment) - Communication systems (e.g., routers, modems)

Detailed and Complete Alternative Models

• AT28C256: Similar specifications and functionality, but with slower access time (150 ns).
• AT28HC256E: Enhanced version with faster access time (70 ns) and extended temperature range.
• AT28HC256L: Low-power version with reduced power consumption.

These alternative models provide options based on specific requirements such as speed, power consumption, and temperature range.

In conclusion, AT28HC256F-90TC is a high-speed, high-density EEPROM chip that offers reliable non-volatile data storage for various electronic devices. Its characteristics, specifications, pin configuration, functional features, advantages, and disadvantages make it suitable for a wide range of applications. Additionally, alternative models provide flexibility to meet specific requirements.