Encyclopedia Entry: 93LC86T/SN

Product Overview

Category

The 93LC86T/SN 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 93LC86T/SN retains stored data even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically.
• High storage capacity: The chip has a storage capacity of 8 kilobits (1 kilobyte).
• Low power consumption: The 93LC86T/SN operates on low power, making it suitable for battery-powered devices.

Package

The 93LC86T/SN is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of the 93LC86T/SN lies in its ability to store and retrieve data reliably in electronic systems.

Packaging/Quantity

This product is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 8 kilobits (1 kilobyte)
• Operating Voltage: 2.5V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 93LC86T/SN features the following pin configuration:

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

• Sequential Read and Write Operations: The chip supports sequential read and write operations, allowing efficient data transfer.
• Hardware Data Protection: The 93LC86T/SN includes built-in protection mechanisms to prevent accidental data corruption during power fluctuations or disturbances.
• Self-Timed Programming Cycle: The programming cycle is self-timed, eliminating the need for external timing control signals.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even in the absence of power.
• Electrically erasable and reprogrammable, providing flexibility for data updates.
• Compact package size allows for integration into space-constrained designs.
• Low power consumption extends battery life in portable devices.

Disadvantages

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

Working Principles

The 93LC86T/SN utilizes a floating-gate transistor structure to store and retrieve data. When data is written, an electric 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 be accessed by applying appropriate voltage levels to the chip's pins.

Detailed Application Field Plans

The 93LC86T/SN finds applications in various fields, including:

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

Detailed and Complete Alternative Models

1. 93LC66B/SN: Similar to the 93LC86T/SN but with a smaller storage capacity of 4 kilobits (512 bytes).
2. 93LC1024/SN: Offers a higher storage capacity of 128 kilobits (16 kilobytes) compared to the 93LC86T/SN.
3. 25AA080D/SN: An alternative EEPROM chip with an 8-kilobit capacity, featuring a different pin configuration and communication protocol.

In conclusion, the 93LC86T/SN is a versatile EEPROM chip that provides non-volatile data storage capabilities for a wide range of electronic devices. Its compact size, low power consumption, and reliable performance make it a popular choice in various industries.