AT28HC256E-70SU

Product Overview

Category

AT28HC256E-70SU 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 for non-volatile data storage. It allows for easy and efficient retrieval of stored information even when power is turned off.

Characteristics

• High-speed operation
• Low power consumption
• Non-volatile memory
• Reliable data retention
• Easy to interface with microcontrollers

Package

AT28HC256E-70SU is available 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-70SU lies in its ability to store and retrieve data reliably, making it an essential component in many electronic systems.

Packaging/Quantity

AT28HC256E-70SU 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 supplier.

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

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 data transfer
• Byte-level read and write operations
• Sector erase capability
• Software and hardware write protection
• Low-power standby mode

Advantages and Disadvantages

Advantages

• High-speed operation allows for quick data access
• Low power consumption prolongs battery life in portable devices
• Reliable data retention ensures long-term storage integrity
• Easy integration with microcontrollers simplifies system design

Disadvantages

• Limited storage capacity compared to other memory technologies
• Relatively higher cost per bit compared to larger capacity memory chips

Working Principles

AT28HC256E-70SU utilizes EEPROM technology, which allows for non-volatile storage of data. It employs a combination of electrically controlled floating gate transistors to store and retrieve information. The data can be written or erased using specific electrical signals applied to the chip's control pins.

Detailed Application Field Plans

AT28HC256E-70SU finds applications in various electronic systems, including but not limited to: - Embedded systems - Automotive electronics - Industrial control systems - Consumer electronics - Medical devices

Detailed and Complete Alternative Models

1. AT28C256-15PU: Similar specifications, different package (DIP)
2. AT28HC256E-90SU: Higher access time (90 ns), otherwise similar specifications
3. AT28HC256E-70PI: Different package (PDIP), otherwise similar specifications

These alternative models provide options with slight variations in package type, access time, or other minor specifications while serving the same purpose as AT28HC256E-70SU.

In conclusion, AT28HC256E-70SU is a high-speed, low-power EEPROM chip used for non-volatile data storage in various electronic systems. Its reliable performance, easy integration, and wide range of applications make it a valuable component in modern technology.

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