AT28HC256E-90SU-T

Product Overview

Category

AT28HC256E-90SU-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 allows for easy and efficient data retrieval even when power is turned off.

Characteristics

• High-speed operation
• Low power consumption
• Non-volatile memory
• Reliable data retention
• Easy programmability and erasability

Package

AT28HC256E-90SU-T comes in a Small-Outline Integrated Circuit (SOIC) package. This package provides a compact form factor and facilitates easy integration into electronic circuits.

Essence

The essence of AT28HC256E-90SU-T lies in its ability to store and retrieve data reliably, even in the absence of power. This makes it an essential component in many electronic systems.

Packaging/Quantity

AT28HC256E-90SU-T 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 supplier.

Specifications

• Part Number: AT28HC256E-90SU-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 AT28HC256E-90SU-T 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 Input/Output (DQ0-DQ7)
6. Supply Voltage (VCC)
7. Ground (GND)

The remaining pins are either unused or reserved for specific functions.

Functional Features

• High-speed operation allows for quick data access and transfer.
• Low power consumption ensures efficient use of energy in electronic systems.
• Non-volatile memory retains data even when power is turned off.
• Easy programmability and erasability enable flexible data storage and modification.

Advantages and Disadvantages

Advantages

• High-speed operation enhances overall system performance.
• Low power consumption prolongs battery life in portable devices.
• Non-volatile memory ensures data integrity during power interruptions.
• Easy programmability and erasability facilitate efficient data management.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively higher cost per unit compared to some alternative memory options.
• Susceptible to radiation-induced errors in certain environments.

Working Principles

AT28HC256E-90SU-T utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. The chip consists of a grid of memory cells that can be individually addressed and modified using electrical signals. When data is written, it is stored in the memory cells by altering their electrical charge. This charge can be read back later to retrieve the stored information.

Detailed Application Field Plans

AT28HC256E-90SU-T finds applications in various fields, including but not limited to:

1. Consumer Electronics: Used in smartphones, tablets, digital cameras, and gaming consoles for data storage purposes.
2. Automotive: Employed in vehicle control units, infotainment systems, and instrument clusters for storing critical data.
3. Industrial Automation: Utilized in programmable logic controllers (PLCs), sensors, and control systems for data logging and configuration storage.
4. Medical Devices: Integrated into medical equipment such as patient monitors, infusion pumps, and diagnostic devices for storing patient data and device configurations.

Detailed and Complete Alternative Models

1. AT28C256-15PU: Similar to AT28HC256E-90SU-T but operates at a slower speed of 150 nanoseconds.
2. AT28BV256-20TU: Offers the same capacity and speed as AT28HC256E-90SU-T but features a different package type (Thin Small-Outline Package).
3. AT29C256-12PC: Another EEPROM chip with the same capacity but operates at a lower voltage range of 2.7V - 5.0V.

These alternative models provide similar functionality and can be considered based on specific requirements and compatibility with existing systems.

In conclusion, AT28HC256E-90SU-T is a high-speed, low-power EEPROM chip that offers reliable non-volatile data storage. Its compact package, easy programmability, and wide operating temperature