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93LC86C EEPROM

Updated: 2026-07-19

Overview

The 93LC86C is a 16K-bit (2K x 8 or 1K x 16) serial EEPROM chip designed for non-volatile data storage applications. It is widely used in industrial control systems, automotive electronics, and consumer devices due to its reliability and ease of integration. The chip operates over a wide voltage range, typically from 2.5V to 5.5V, making it suitable for various electronic systems. Its serial interface simplifies board layout and reduces pin count, which is particularly beneficial for space-constrained designs.

Structure and Working Principle

集成电路IC 93LC86C-I/SN MICROCHIP/微芯 SOIC-8 EEPROM原装芯片深圳市金华洋世纪科技有限公司

The 93LC86C features a three-wire serial interface (CS, SK, and DI/DO) for communication with microcontrollers or other host devices. Data is transferred in a bit-serial fashion, with commands and addresses preceding the actual data. Internally, the chip uses floating gate transistors to store data, which can be electrically erased and reprogrammed. This allows for up to 1,000,000 write cycles, ensuring long-term reliability in most applications. The device also includes built-in write protection features to prevent accidental data corruption.

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Key Features

The 93LC86C offers several notable features, including low power consumption (typically 1 mA active current and 1 µA standby current), which makes it ideal for battery-powered applications. Additional features include a 64-byte page write mode for faster programming, an industry-standard pinout for easy replacement, and a wide operating temperature range (-40°C to +85°C) for use in harsh environments. These characteristics contribute to its popularity across various industries.

Application Areas

This EEPROM is commonly found in automotive electronics for storing mileage data, radio presets, and ECU configurations. Industrial applications include PLCs, sensor calibration storage, and equipment parameter retention. In consumer electronics, the 93LC86C is used in set-top boxes, smart home devices, and appliances to maintain user settings and configuration data during power cycles. Its reliability and small footprint make it a versatile solution for numerous embedded systems.

Maintenance and Precautions

93LC86C-I/SN 存储IC Microchip 封装SOIC8 批次24+深圳市新思汇科技有限公司

When handling the 93LC86C, proper ESD precautions should be taken to prevent damage to the sensitive semiconductor components. Storage should be in anti-static packaging in a dry environment. During operation, voltage spikes should be avoided as they may corrupt stored data or damage the device. Designers should implement proper decoupling capacitors near the power pins and ensure the host system provides stable power within the specified voltage range.

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B2B Procurement Guide

When sourcing 93LC86C chips, verify the supplier's authorization status to ensure genuine Microchip Technology products. Consider ordering samples for testing before large-scale purchases. Lead times can vary significantly (typically 4-12 weeks), so plan procurement accordingly. For high-volume orders (10,000+ units), negotiate pricing and consider alternative packaging options (tubes, trays, or reels) to optimize handling and assembly processes.

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