AT93C46W-10SC-2.7

Overview

Product Category

AT93C46W-10SC-2.7 belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

The AT93C46W-10SC-2.7 chip is primarily used for non-volatile data storage in various electronic devices, such as microcontrollers, automotive systems, and consumer electronics.

Characteristics

• Non-volatile: The data stored in the AT93C46W-10SC-2.7 chip remains intact even when power is removed.
• Electrically erasable: The chip allows for easy modification and erasure of stored data through electrical signals.
• High reliability: The AT93C46W-10SC-2.7 chip offers excellent data retention and endurance characteristics.
• Low power consumption: The chip operates efficiently with low power requirements.
• Small package size: The AT93C46W-10SC-2.7 chip is available in a compact surface mount package.

Package and Quantity

The AT93C46W-10SC-2.7 chip is packaged in a small outline integrated circuit (SOIC) package. It is typically supplied in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Operating Voltage: 2.7V to 5.5V
• Memory Size: 1K bits (128 bytes)
• Organization: 64 words × 16 bits or 128 bytes
• Interface: Serial Peripheral Interface (SPI)
• Maximum Clock Frequency: 3 MHz
• Write Time: 5 ms (typical)
• Data Retention: 100 years (minimum)

Pin Configuration

The AT93C46W-10SC-2.7 chip has a total of 8 pins, which are assigned specific functions as follows:

1. Chip Select (CS)
2. Serial Clock (SCK)
3. Serial Data Input (SI)
4. Serial Data Output (SO)
5. Write Enable (WE)
6. VCC (Power Supply)
7. Ground (GND)
8. Not Connected (NC)

Functional Features

• High-speed data transfer: The AT93C46W-10SC-2.7 chip supports fast serial communication, enabling efficient data transfer.
• Hardware write protection: The chip provides write protection features to prevent accidental modification or erasure of stored data.
• Sequential read operation: The AT93C46W-10SC-2.7 chip allows for sequential reading of data, simplifying access to stored information.
• Self-timed programming cycle: The chip automatically manages the timing of programming operations, ensuring reliable and accurate data storage.

Advantages and Disadvantages

Advantages

• Compact size and low power consumption make it suitable for space-constrained and battery-powered devices.
• High reliability ensures data integrity even in harsh operating conditions.
• Easy integration with microcontrollers and other electronic systems due to the standard SPI interface.
• Cost-effective solution for non-volatile data storage requirements.

Disadvantages

• Limited memory capacity compared to other EEPROM chips.
• Slower write time compared to some competing products.
• Lack of additional security features, such as hardware encryption.

Working Principles

The AT93C46W-10SC-2.7 chip utilizes a floating gate transistor structure to store data. 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 erase operation, allowing the transistor to return to its original state. The stored data can be accessed by applying appropriate voltage levels to the chip's pins.

Application Field Plans

The AT93C46W-10SC-2.7 chip finds applications in various fields, including:

1. Microcontrollers: Used for storing configuration data, calibration values, and firmware updates.
2. Automotive Systems: Employed in electronic control units (ECUs) for storing critical vehicle parameters and diagnostic information.
3. Consumer Electronics: Integrated into devices like smart TVs, set-top boxes, and home automation systems to store user preferences and settings.

Alternative Models

For users seeking alternative options, the following EEPROM chips can be considered:

1. AT24C02: 2K-bit EEPROM with similar characteristics but higher memory capacity.
2. CAT24C256: 256K-bit EEPROM offering significantly larger storage space.
3. ST M24C64: 64K-bit EEPROM with comparable specifications and pin configuration.

These alternatives provide varying memory capacities and may better suit specific application requirements.

In conclusion, the AT93C46W-10SC-2.7 chip is a compact and reliable EEPROM solution suitable for a wide range of electronic devices. Its non-volatile nature, low power consumption, and ease of integration make it an ideal choice for