AT28HC256E-90TI

Product Overview

Category

AT28HC256E-90TI belongs to the category of high-speed, high-density Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

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

Characteristics

• High-speed operation
• High-density storage capacity
• Electrically erasable and programmable
• Non-volatile memory
• Low power consumption

Package

AT28HC256E-90TI comes in a compact Thin Small Outline Package (TSOP) with 32 pins. This package ensures easy integration into circuit boards and provides reliable electrical connections.

Essence

The essence of AT28HC256E-90TI lies in its ability to store large amounts of data reliably and securely, while allowing for fast read and write operations.

Packaging/Quantity

AT28HC256E-90TI 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's specifications.

Specifications

• Operating Voltage: 2.7V - 5.5V
• Storage 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

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's specifications. Please refer to the datasheet for the exact pinout.

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

Advantages and Disadvantages

Advantages

• High-speed operation allows for quick access to stored data.
• High-density storage capacity accommodates large amounts of information.
• Electrically erasable and programmable nature enables flexibility in data manipulation.
• Low power consumption ensures energy efficiency.
• Software and hardware protection mechanisms enhance data security.

Disadvantages

• Limited endurance with a maximum of 100,000 write cycles.
• Relatively higher cost compared to other non-volatile memory options.
• Requires an external power supply for operation.

Working Principles

AT28HC256E-90TI utilizes EEPROM technology, which allows for electrically erasing and programming data. The memory cells within the chip store information as charges on floating gates. These charges can be manipulated by applying specific voltage levels to the control pins, enabling data read, write, and erase operations.

Detailed Application Field Plans

AT28HC256E-90TI finds applications in various fields, including but not limited to: 1. Microcontroller-based systems 2. Embedded systems 3. Industrial automation 4. Automotive electronics 5. Medical devices 6. Communication equipment

The product's high-speed operation, reliability, and non-volatile storage make it suitable for these application areas.

Detailed and Complete Alternative Models

1. AT28C256 - Similar EEPROM chip with lower speed and density.
2. AT29C256 - Flash memory chip with similar capacity and interface.
3. AT24C256 - I2C-compatible EEPROM chip with comparable characteristics.
4. M93C86 - Serial EEPROM chip with similar specifications.

These alternative models offer different features and may be suitable depending on specific requirements and compatibility with the target system.

In conclusion, AT28HC256E-90TI is a high-speed, high-density EEPROM chip used for non-volatile data storage in various electronic devices. Its characteristics, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models make it a versatile choice for many applications.