AT93C66-10SI-1.8

Overview

Product Category

AT93C66-10SI-1.8 belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Non-volatile: The stored data remains even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically.
• Small form factor: The chip is compact and suitable for integration into space-constrained devices.
• Low power consumption: It operates efficiently with minimal power requirements.

Package

AT93C66-10SI-1.8 is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of this product lies in its ability to store and retrieve data reliably in electronic systems, ensuring persistent memory even during power cycles.

Packaging/Quantity

AT93C66-10SI-1.8 is typically packaged in reels or tubes, containing a specific quantity of chips per package. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Part Number: AT93C66-10SI-1.8
• Memory Size: 4 kilobits (512 x 8 bits)
• Operating Voltage: 1.8V
• Speed: 10 MHz
• Interface: Serial Peripheral Interface (SPI)
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT93C66-10SI-1.8 chip has a total of 8 pins, which are assigned specific functions:

1. Chip Select (/CS): Enables communication with the chip.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Serial Data Input (SI): Transfers data from the microcontroller to the chip.
4. Serial Data Output (SO): Transfers data from the chip to the microcontroller.
5. Write Protect (/WP): Enables or disables write operations.
6. VCC: Power supply voltage.
7. Ground (GND): Common ground reference.
8. Not Connected (NC): Unused pin.

Functional Features

• Byte-level Read and Write Operations: Allows reading and writing of individual bytes within the memory array.
• Sequential Read: Supports continuous reading of multiple bytes without requiring repeated address input.
• Software Protection: Provides a write protection mechanism to prevent accidental modification of stored data.
• Self-Timed Programming Cycle: Automatically manages the programming process, simplifying system integration.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data persistence.
• Electrically erasable and reprogrammable for flexibility.
• Compact size enables integration into various electronic devices.
• Low power consumption prolongs battery life.
• SPI interface allows easy communication with microcontrollers.

Disadvantages

• Limited memory capacity compared to other storage technologies.
• Relatively slower read and write speeds compared to volatile memory.
• Susceptible to electromagnetic interference (EMI) due to its small form factor.

Working Principles

AT93C66-10SI-1.8 utilizes EEPROM technology, which employs floating-gate transistors to store and retrieve data. The chip's internal circuitry consists of memory cells organized in an array, with each cell capable of storing one bit of information. By applying appropriate voltage levels, data can be written, erased, and read from these memory cells.

Detailed Application Field Plans

AT93C66-10SI-1.8 finds applications in various fields, including:

1. Automotive Electronics: Used for storing critical vehicle parameters, such as mileage, engine diagnostics, and configuration settings.
2. Industrial Control Systems: Employed in programmable logic controllers (PLCs) to store program code, configuration data, and system parameters.
3. Consumer Electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles for storing user preferences, firmware updates, and encryption keys.
4. Medical Devices: Utilized for storing patient data, device configurations, and calibration information in medical equipment.

Detailed and Complete Alternative Models

1. AT93C46-10SI-1.8: Similar to AT93C66-10SI-1.8 but with a smaller memory size of 2 kilobits.
2. AT93C86-10SI-1.8: Similar to AT93C66-10SI-1.8 but with a larger memory size of 16 kilobits.
3. AT25M02-10SI-1.8: An alternative EEPROM chip with a higher memory capacity of 2 megabits.

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

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