AT28BV64B-20SA

Product Overview

Category

AT28BV64B-20SA belongs to the category of non-volatile memory devices.

Use

It is primarily used for storing and retrieving data in electronic systems.

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High capacity: The AT28BV64B-20SA has a storage capacity of 64 kilobits.
• Low power consumption: Designed to operate with minimal power requirements.
• Fast access time: Offers quick data retrieval with a maximum access time of 200 nanoseconds.

Package

The AT28BV64B-20SA is available in a small outline package (SOIC) format.

Essence

This product is an electrically erasable programmable read-only memory (EEPROM) chip, designed to provide reliable and non-volatile data storage.

Packaging/Quantity

The AT28BV64B-20SA is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Storage Capacity: 64 kilobits (8 kilobytes)
• Operating Voltage: 2.7V - 3.6V
• Access Time: 200 ns (maximum)
• Interface: Serial Peripheral Interface (SPI)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT28BV64B-20SA features a total of 8 pins, each serving a specific purpose:

1. Chip Enable (CE): Enables the chip for read/write operations.
2. Output Enable (OE): Controls the output buffer.
3. Write Enable (WE): Enables write operations.
4. Serial Data Input (SI): Receives serial data during write operations.
5. Serial Data Output (SO): Outputs serial data during read operations.
6. Serial Clock (SCK): Provides the clock signal for data transfer.
7. Ground (GND): Connects to the ground reference.
8. Power Supply (VCC): Supplies power to the chip.

Functional Features

• Byte-wise Read and Write: Allows individual bytes of data to be read from or written to the memory.
• Chip Erase: Supports erasing the entire memory content in a single operation.
• Sector Erase: Enables erasing specific sectors of the memory, providing flexibility in data management.
• Software Protection: Offers software-controlled protection mechanisms to prevent unauthorized write or erase operations.
• Low Power Standby Mode: Reduces power consumption when the chip is not actively used.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High storage capacity for various applications.
• Fast access time allows for quick data retrieval.
• Low power consumption prolongs battery life in portable devices.
• Flexible sector erase feature enhances data management capabilities.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower access time compared to volatile memory options.
• Requires additional circuitry for interfacing with the host system.

Working Principles

The AT28BV64B-20SA utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It stores information using floating-gate transistors that can retain charge even without power. The chip's control pins enable read, write, and erase operations, while the serial interface facilitates data transfer between the chip and the host system.

Detailed Application Field Plans

The AT28BV64B-20SA finds application in various electronic systems, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems - Communication devices

Its non-volatile nature, high capacity, and low power consumption make it suitable for applications that require reliable data storage with minimal energy usage.

Detailed and Complete Alternative Models

• AT28C64B-20SU: Similar EEPROM chip with the same storage capacity and operating characteristics.
• AT45DB641E-SHN2B-T: Flash memory chip with higher storage capacity and faster access time.
• M24M02-RMN6TP: Serial EEPROM chip with similar storage capacity and low power consumption.

These alternative models offer different features and specifications, allowing users to choose the most suitable option based on their specific requirements.

Word count: 610 words