AT28HC256-90TU-T

Product Overview

Category

AT28HC256-90TU-T belongs to the category of high-speed, low-power Electrically Erasable Programmable Read-Only Memory (EEPROM) chips.

Use

This product is commonly used in various electronic devices and systems for non-volatile data storage. It provides reliable and long-term storage capabilities for critical information.

Characteristics

• High-speed operation
• Low power consumption
• Non-volatile memory
• Large storage capacity
• Durable and reliable

Package

AT28HC256-90TU-T comes in a compact and industry-standard Thin Small Outline Package (TSOP). This package ensures easy integration into different electronic systems.

Essence

The essence of AT28HC256-90TU-T lies in its ability to store and retrieve data reliably and efficiently. It offers high-speed operation and low power consumption, making it suitable for a wide range of applications.

Packaging/Quantity

AT28HC256-90TU-T is typically packaged in reels or tubes, depending on the manufacturer's specifications. The quantity per package varies but is usually in the range of hundreds or thousands of units.

Specifications

• Part Number: AT28HC256-90TU-T
• Memory Type: Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Capacity: 256 kilobits (32 kilobytes)
• Operating Voltage: 2.7V - 5.5V
• Speed: 90 nanoseconds (access time)
• Interface: Serial Peripheral Interface (SPI)
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT28HC256-90TU-T chip has a total of 28 pins, each serving a specific purpose. 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 Input/Output (I/O0-I/O7)
6. Supply Voltage (VCC)
7. Ground (GND)

Note: The remaining pins are not listed here for brevity.

Functional Features

1. High-Speed Operation: AT28HC256-90TU-T offers fast access times, allowing for efficient data retrieval and storage operations.
2. Low Power Consumption: This chip is designed to minimize power consumption, making it suitable for battery-powered devices.
3. Non-Volatile Memory: The data stored in AT28HC256-90TU-T remains intact even when the power is turned off, ensuring reliable and persistent storage.
4. Large Storage Capacity: With a capacity of 256 kilobits, this EEPROM chip provides ample space for storing critical information.
5. Durable and Reliable: AT28HC256-90TU-T is built to withstand harsh environmental conditions and offers long-term data retention.

Advantages and Disadvantages

Advantages

• High-speed operation enables quick data access.
• Low power consumption prolongs battery life.
• Non-volatile memory ensures data integrity.
• Large storage capacity accommodates extensive data requirements.
• Durable construction guarantees long-term reliability.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively higher cost per bit compared to some alternatives.
• Requires additional circuitry for interfacing with microcontrollers or systems.

Working Principles

AT28HC256-90TU-T utilizes electrically erasable programmable read-only memory technology. It stores data by trapping electrical charges within its memory cells. These charges can be selectively erased and reprogrammed using specific voltage levels. When data is needed, the chip retrieves the stored charges and presents the information to the system.

Detailed Application Field Plans

AT28HC256-90TU-T finds applications in various fields, including but not limited to:

1. Consumer Electronics: Used in devices like smartphones, tablets, and digital cameras for data storage purposes.
2. Automotive Systems: Employed in automotive electronics for storing critical information such as calibration data, firmware, and configuration settings.
3. Industrial Control Systems: Utilized in industrial automation systems for storing program code, configuration parameters, and historical data.
4. Medical Devices: Integrated into medical equipment for storing patient data, device settings, and firmware updates.
5. Communication Systems: Used in networking equipment, routers, and switches for storing configuration data and firmware.

Detailed and Complete Alternative Models

1. AT28C256: Similar to AT28HC256-90TU-T, this model offers a capacity of 256 kilobits but operates at a slower speed.
2. AT24C256: This alternative model is an I2C-compatible EEPROM with the same capacity as AT28HC256-90TU-T. It operates at a lower voltage and has a different pin configuration.
3. AT45DB256: A