AT28HC64B-12SI

Product Overview

Category

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

Use

It is primarily used for data storage in various electronic devices such as microcontrollers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: Retains stored data even when power is removed.
• High capacity: The AT28HC64B-12SI has a storage capacity of 64 kilobits (8 kilobytes).
• High-speed operation: It operates at a speed of 12 MHz.
• Low power consumption: Designed to minimize power usage during read and write operations.

Package

The AT28HC64B-12SI is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of the AT28HC64B-12SI is its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity even in the absence of power.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT28HC64B-12SI chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Storage Capacity: 64 kilobits (8 kilobytes)
• Operating Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Speed: 12 MHz
• Interface: Serial Peripheral Interface (SPI)

Detailed Pin Configuration

The AT28HC64B-12SI has a total of 8 pins, which are assigned specific functions:

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 write operations.
6. Hold (/HOLD): Suspends ongoing operations temporarily.
7. VCC: Power supply voltage.
8. Ground (GND): Common ground reference.

Functional Features

• High-speed data transfer: The AT28HC64B-12SI supports a maximum clock frequency of 12 MHz, allowing for fast read and write operations.
• Non-volatile storage: The data stored in this memory chip is retained even when power is removed, ensuring data integrity.
• Low power consumption: Designed with power-saving features to minimize energy usage during operation.
• SPI interface: The Serial Peripheral Interface allows for easy integration with various microcontrollers and other devices.

Advantages and Disadvantages

Advantages

• Reliable non-volatile storage solution.
• High-speed operation for efficient data transfer.
• Low power consumption for energy efficiency.
• Compatibility with standard SPI interface.

Disadvantages

• Limited storage capacity compared to other memory options.
• Requires additional components for interfacing with microcontrollers.

Working Principles

The AT28HC64B-12SI utilizes flash memory technology to store and retrieve data. It employs a combination of floating-gate transistors and charge storage elements to retain information even without power. The Serial Peripheral Interface (SPI) facilitates communication between the memory chip and the controlling device, enabling seamless data transfer.

Detailed Application Field Plans

The AT28HC64B-12SI finds applications in various fields, including: 1. Microcontroller-based systems: Used for program storage and data logging. 2. Embedded systems: Provides non-volatile memory for firmware and configuration data. 3. Consumer electronics: Enables storage of user settings, preferences, and small data files.

Detailed and Complete Alternative Models

1. AT28C64B-15SI: Similar to AT28HC64B-12SI but operates at a slightly higher speed (15 MHz).
2. AT28HC256-90SI: Offers a higher storage capacity of 256 kilobits (32 kilobytes) and operates at a speed of 90 MHz.
3. AT28HC16B-70SI: Lower capacity variant with 16 kilobits (2 kilobytes) and operates at a speed of 70 MHz.

These alternative models provide options with varying capacities and operating characteristics, allowing users to choose the most suitable memory chip for their specific requirements.

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