AT28HC256-70TC

Product Overview

Category

AT28HC256-70TC 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
• Electrically erasable and programmable
• Large storage capacity
• Reliable data retention

Package

AT28HC256-70TC is available in a Thin Small Outline Package (TSOP). This package provides a compact form factor and allows for easy integration into electronic circuits.

Essence

The essence of AT28HC256-70TC lies in its ability to store and retrieve data reliably, even in the absence of power. It offers high-speed operation and low power consumption, making it suitable for a wide range of applications.

Packaging/Quantity

AT28HC256-70TC 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's specifications.

Specifications

• Operating Voltage: 2.7V - 5.5V
• 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

The AT28HC256-70TC chip has a total of 28 pins. 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 transfer
• Low power consumption during read and write operations
• Easy integration with microcontrollers and other electronic devices
• Built-in protection against accidental writes
• Flexible addressing options for efficient memory management

Advantages and Disadvantages

Advantages

• High-speed operation allows for quick data access
• Low power consumption helps conserve energy in battery-powered devices
• Large storage capacity accommodates a wide range of applications
• Reliable data retention ensures long-term data integrity
• Electrically erasable and programmable nature allows for easy updates and modifications

Disadvantages

• Limited endurance compared to other non-volatile memory technologies
• Relatively higher cost per bit compared to other memory options
• Requires additional circuitry for interfacing with microcontrollers

Working Principles

AT28HC256-70TC utilizes EEPROM technology, which allows for electrically erasing and programming data. The chip stores data in a grid of memory cells, with each cell capable of holding one bit of information. To read or write data, the chip applies specific voltage levels to the appropriate pins, enabling the desired operation.

Detailed Application Field Plans

AT28HC256-70TC finds applications in various fields, including:

1. Embedded systems: Used for firmware storage in microcontrollers and system-on-chip devices.
2. Automotive electronics: Employed for storing critical data such as calibration parameters and configuration settings.
3. Industrial automation: Utilized for storing program code and data in PLCs and industrial control systems.
4. Consumer electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles for data storage purposes.

Detailed and Complete Alternative Models

1. AT28C256: Similar capacity and functionality, but with slower access times.
2. AT28HC256-90TC: Higher access speed variant of the same capacity.
3. AT28HC256E-70TC: Lower power consumption version with similar specifications.

These alternative models offer different trade-offs in terms of speed, power consumption, and cost, allowing users to choose the most suitable option for their specific requirements.

Word count: 570 words