AT93C56B-MAHM-E

Product Overview

Category

AT93C56B-MAHM-E belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This chip is commonly used for non-volatile storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Non-volatile: Retains data even when power is removed.
• Electrically erasable: Can be erased and reprogrammed electronically.
• Small form factor: Compact size suitable for integration into various devices.
• Low power consumption: Efficient energy usage for extended battery life.

Package

AT93C56B-MAHM-E is available in a surface-mount package, which facilitates easy installation on printed circuit boards (PCBs).

Essence

The essence of this chip lies in its ability to store and retrieve digital information reliably, even in the absence of power.

Packaging/Quantity

AT93C56B-MAHM-E is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Memory capacity: 2 kilobits (256 x 8 bits)
• Operating voltage: 1.8V to 5.5V
• Operating temperature range: -40°C to +85°C
• Data retention: Up to 200 years
• Write endurance: 1 million write cycles

Detailed Pin Configuration

The AT93C56B-MAHM-E chip has a total of 8 pins, each serving a specific function:

1. Chip Select (/CS): Enables communication with the chip.
2. Serial Clock (SCK): Provides timing 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 Protect (/WP): Allows or prevents write operations.
6. VCC: Power supply voltage.
7. Ground (GND): Electrical ground reference.
8. Serial Data Out (NC): No connection pin.

Functional Features

• High-speed data transfer: Supports clock frequencies up to 5 MHz.
• Sequential read operation: Allows consecutive retrieval of stored data.
• Hardware write protection: Ensures data integrity by preventing accidental writes.
• Self-timed programming cycle: Simplifies the programming process.
• Software and hardware data protection: Provides security against unauthorized access.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even during power loss.
• Compact size: Suitable for space-constrained applications.
• Low power consumption: Ideal for battery-powered devices.
• High endurance: Can withstand frequent write cycles.
• Versatile: Compatible with various microcontrollers and systems.

Disadvantages

• Limited storage capacity: Not suitable for large-scale data storage.
• Relatively slower write speed compared to other memory technologies.
• Vulnerable to electromagnetic interference (EMI) due to its small form factor.

Working Principles

AT93C56B-MAHM-E utilizes a combination of floating gate transistors and electronic charge injection to store and retrieve digital information. When data is written, an electrical charge is trapped in the floating gate, altering the transistor's behavior. This charge can be removed during the erasing process, allowing the transistor to return to its original state. The stored data can then be read by applying appropriate voltages to the chip's pins.

Detailed Application Field Plans

AT93C56B-MAHM-E finds application in various fields, including:

1. Automotive electronics: Used for storing configuration settings, mileage data, and fault codes in automotive control units.
2. Industrial automation: Employed in programmable logic controllers (PLCs) for storing program instructions and data.
3. Consumer electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles for firmware storage and system configuration.
4. Medical devices: Utilized in medical equipment for storing patient data, calibration settings, and device parameters.

Detailed and Complete Alternative Models

1. AT93C46B-MAHM-E: Similar to AT93C56B-MAHM-E but with a smaller memory capacity of 1 kilobit.
2. AT93C66B-MAHM-E: Offers a larger memory capacity of 4 kilobits compared to AT93C56B-MAHM-E.
3. AT25C256-MAHM-T: Provides a significantly higher memory capacity of 32 kilobits.

These alternative models offer different memory capacities to suit specific application requirements.

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