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EEPROM Memory IC 4Kbit Microwire 2 MHz 8-SOIC

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93LC66AT/SN General Description

The Microchip 93LC66A device is a 4Kb Microwire (3-wire) Serial EEPROM with dedicated 8-bit memory organization and a voltage operation range of 2.5 - 5.5V. Also available are the 93LC66B for dedicated 16-bit memory organization and the 93LC66C for hardware selectable word size using the ORG pin. The 93LC66A is optimized for use in consumer, industrial, and automotive applications where reliable and dependable nonvolatile memory storage is essential. The device is available in a variety of Pb-free packages including SOT-23, PDIP, SOIC, MSOP, DFN and TSSOP.

Microchip Technology, Inc Inventory

Key Features

    • Industry Standard Microwire Serial I/O
    • Up to 2 MHz clock compatibility
    • 512 x 8-Bit Organization
    • Automatic Erase All (ERAL) Before Write All (WRAL)
    • Self-Timed Erase and Write Cycles (6 ms max.)
    • Read current 100 uA (Typ), 500 uA (Max)
    • Write current 500 uA (Typ), 2 mA (Max)
    • Standby current 1 uA (Max at -40 to 85°C)
    • Software Write-Protection
    • More than 1 million erase/write cycles
    • Data retention > 200 years
    • Grade 1 Temperature Range: -40°C to 125°C
    • Qualified for Automotive Applications
    • Factory Programming Available
    • Available in SOT-23-6, PDIP-8, SOIC-8, MSOP-8, 2x3 DFN-8 and TSSOP-8
Microchip Technology, Inc Original Stock


Manufacturer: Microchip Product Category: EEPROM
RoHS: Y Mounting Style: SMD/SMT
Package / Case: SOIC-8 Memory Size: 4 kbit
Organization: 512 x 8 Interface Type: Serial, 3-Wire, Microwire
Access Time: 6 ms Data Retention: 200 Year
Maximum Clock Frequency: 2 MHz Supply Current - Max: 2 mA
Supply Voltage - Min: 2.5 V Supply Voltage - Max: 5.5 V
Minimum Operating Temperature: 0 C Maximum Operating Temperature: + 70 C
Packaging: Reel Height: 1.25 mm (Min)
Length: 4.9 mm Width: 3.9 mm
Brand: Microchip Technology Moisture Sensitive: Yes
Operating Supply Current: 1.5 mA Operating Supply Voltage: 2.5 V to 5.5 V
Product Type: EEPROM Programming Voltage: 2.5 V to 6 V
Factory Pack Quantity: 3300 Subcategory: Memory & Data Storage
Unit Weight: 0.019048 oz Tags 93LC66AT, 93LC66A, 93LC66, 93LC6, 93LC, 93L

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Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

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If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.


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Availability: 3056 PCS

Qty. Unit Price(USD) Ext. Price
1+ $0.282 $0.28
10+ $0.228 $2.28
30+ $0.206 $6.18
100+ $0.178 $17.80
500+ $0.165 $82.50
1000+ $0.157 $157.00

The prices below are for reference only.