AT28HC64B-12SU

Product Overview

Category

AT28HC64B-12SU belongs to the category of non-volatile memory integrated circuits.

Use

This product is primarily used for storing and retrieving digital information in electronic devices.

Characteristics

• Non-volatile: The stored data is retained even when power is removed.
• High capacity: The AT28HC64B-12SU has a storage capacity of 64 kilobits (8 kilobytes).
• High-speed operation: It operates at a speed of 12 MHz.
• Low power consumption: The product is designed to minimize power usage.
• Reliable: It offers high endurance and data retention capabilities.

Package

The AT28HC64B-12SU is available in a small outline, surface mount package (SOIC). This package provides ease of integration into various electronic systems.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for digital information in a compact form factor.

Packaging/Quantity

The AT28HC64B-12SU is typically packaged in reels or tubes, with each containing a specific quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Memory Type: EEPROM (Electrically Erasable Programmable Read-Only Memory)
• Organization: 8K x 8 bits
• Operating Voltage: 2.7V - 5.5V
• Access Time: 120 ns
• Interface: Serial Peripheral Interface (SPI)
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years

Detailed Pin Configuration

The AT28HC64B-12SU has a total of 8 pins, each serving a specific purpose:

1. Chip Select (/CS): Enables communication with the device.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Serial Data Input (SI): Receives data from the external device.
4. Serial Data Output (SO): Transmits data to the external device.
5. Write Enable (/WE): Controls the write operation.
6. Hold (/HOLD): Suspends serial communication temporarily.
7. VCC: Power supply voltage.
8. Ground (GND): Common ground reference.

Functional Features

• High-speed data transfer: The AT28HC64B-12SU supports fast data transfer rates, allowing for efficient read and write operations.
• Flexible interface: It utilizes the widely adopted Serial Peripheral Interface (SPI) for easy integration with various microcontrollers and other devices.
• Low power consumption: The product is designed to minimize power usage, making it suitable for battery-powered applications.
• Reliable data storage: With its non-volatile memory technology, the AT28HC64B-12SU ensures data integrity even in the absence of power.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention without power supply.
• High capacity allows for storing a significant amount of digital information.
• Fast data transfer speed enhances overall system performance.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower access time compared to some modern memory devices.
• Requires an external microcontroller or device for interfacing and control.

Working Principles

The AT28HC64B-12SU operates based on EEPROM technology. It uses electrically controlled floating gate transistors to store and retrieve digital information. When data needs to be written, the device applies a high voltage to the specific memory cell, altering the charge on the floating gate. This change in charge represents the stored data. During read operations, the device detects the charge state of the memory cells to retrieve the stored information.

Detailed Application Field Plans

The AT28HC64B-12SU finds applications in various electronic systems, including but not limited to: - Embedded systems - Consumer electronics - Automotive electronics - Industrial control systems - Medical devices

In embedded systems, it can be used for firmware storage, configuration data, or parameter storage. In consumer electronics, it may find use in digital cameras, printers, or set-top boxes. Automotive electronics can utilize this product for storing calibration data or system parameters. Industrial control systems often require non-volatile memory for program storage or data logging. Medical devices may benefit from using the AT28HC64B-12SU for storing patient data or device configurations.

Detailed and Complete Alternative Models

• AT28C64B: Similar to AT28HC64B-12SU, but operates at a slower speed (150 ns).
• AT28HC256-12SU: Higher capacity (256 kilobits) version of the AT28HC64B-12SU.
• AT25SF041-SSHD-T: Serial Flash memory with 4 meg