AT28HC256-70TI

Product Overview

Category

AT28HC256-70TI 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

AT28HC256-70TI comes in a small-sized package that ensures easy integration into electronic circuits. The package type is typically a Thin Small Outline Package (TSOP).

Essence

The essence of AT28HC256-70TI lies in its ability to provide reliable and high-speed non-volatile memory storage for electronic devices.

Packaging/Quantity

AT28HC256-70TI is usually packaged in reels or tubes, depending on the manufacturer's preference. The quantity per package can vary but is commonly around 250 units.

Specifications

• Operating Voltage: 2.7V - 5.5V
• Storage Capacity: 256 kilobits (32 kilobytes)
• Access Time: 70 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. Serial Data Input (SI)
5. Serial Data Output (SO)
6. Serial Clock (SCK)
7. Supply Voltage (VCC)
8. Ground (GND)

Functional Features

• High-speed read and write operations
• Byte-wise and page-wise write capability
• Sector erase and chip erase functions
• 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 prolongs battery life in portable devices
• Large storage capacity accommodates extensive data requirements
• Reliable data retention ensures long-term usability
• 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 solutions
• Requires additional control signals for proper operation

Working Principles

AT28HC256-70TI utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It stores information in a grid of memory cells that can be individually addressed and modified using electrical signals.

The chip operates by receiving commands and data through the serial interface. The data is then written or read from the memory cells based on the received instructions. The stored data remains intact even when the power supply is disconnected.

Detailed Application Field Plans

AT28HC256-70TI finds applications in various fields, including: 1. Microcontroller-based systems 2. Embedded systems 3. Automotive electronics 4. Industrial automation 5. Communication devices 6. Medical equipment 7. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to AT28HC256-70TI include: 1. AT28C256 - Similar specifications but with slower access time 2. AT29C256 - Flash memory alternative with faster erase and write times 3. 25LC256 - Serial EEPROM with lower power consumption 4. M93C56 - Microwire EEPROM with smaller package size

These alternatives offer different trade-offs in terms of performance, power consumption, and package options, allowing users to choose the most suitable option for their specific requirements.

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