AT28HC256F-12SA

Product Overview

Category

AT28HC256F-12SA belongs to the category of high-speed, low-power Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

This product is primarily used for non-volatile data storage in various electronic devices such as microcontrollers, computers, and consumer electronics.

Characteristics

• High-speed operation
• Low power consumption
• Non-volatile memory
• Large storage capacity
• Reliable data retention
• Easy to interface with other electronic components

Package

AT28HC256F-12SA is available in a Small-Outline Integrated Circuit (SOIC) package. The package provides protection and easy integration into circuit boards.

Essence

The essence of AT28HC256F-12SA lies in its ability to store and retrieve data reliably, while offering high-speed performance and low power consumption.

Packaging/Quantity

AT28HC256F-12SA is typically packaged in reels or tubes, containing a specific quantity of chips per package. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory Size: 256 kilobits (32 kilobytes)
• Operating Voltage: 2.7V - 5.5V
• Access Time: 120 nanoseconds
• Organization: 32K x 8 bits
• Interface: Serial Peripheral Interface (SPI)
• Data Retention: 10 years
• Endurance: 100,000 write cycles

Detailed Pin Configuration

The AT28HC256F-12SA chip has a total of 28 pins. Here is the detailed pin configuration:

1. Chip Enable (CE)
2. Output Enable (OE)
3. Write Enable (WE)
4. Address Inputs (A0-A14)
5. Data Input/Output (DQ0-DQ7)
6. Serial Clock (SCK)
7. Chip Select (CS)
8. Power Supply (VCC)
9. Ground (GND)

Functional Features

• High-speed data transfer
• Byte-wise and page-wise write operations
• Sector erase capability
• Software and hardware protection mechanisms
• Automatic sleep mode for power saving
• Error detection and correction algorithms

Advantages and Disadvantages

Advantages

• Fast access time allows for efficient data retrieval
• Low power consumption extends battery life in portable devices
• Large storage capacity accommodates a wide range of applications
• Reliable data retention ensures long-term integrity
• Easy integration with other electronic components simplifies circuit design

Disadvantages

• Limited endurance compared to other non-volatile memory technologies
• Relatively higher cost per bit compared to some alternative memory options
• Requires additional circuitry for programming and erasing operations

Working Principles

AT28HC256F-12SA utilizes EEPROM technology, which allows for electrically erasing and reprogramming data. The chip stores data in a grid of memory cells, where each cell represents a bit. Data can be written to or read from these cells using specific control signals. The stored data remains intact even when the power is turned off.

Detailed Application Field Plans

AT28HC256F-12SA finds applications in various fields, including: 1. Microcontrollers and embedded systems 2. Automotive electronics 3. Industrial automation 4. Medical devices 5. Communication equipment 6. Consumer electronics

Detailed and Complete Alternative Models

1. AT28C256: Similar specifications, but with slower access time.
2. AT29C256: Flash memory alternative with faster erase and write times.
3. 24LC256: I2C interface-based EEPROM with similar capacity and characteristics.

These alternative models offer similar functionality and can be considered based on specific application requirements.

In conclusion, AT28HC256F-12SA is a high-speed, low-power EEPROM chip that provides reliable non-volatile data storage. Its characteristics, specifications, pin configuration, functional features, advantages, and disadvantages make it suitable for various applications in different fields. Alternative models offer flexibility based on specific needs.