93AA66B-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock

Name: 93AA66B-I/SN
Brand: Microchip
SKU: 93AA66B-I/SN
Availability: InStock

Microchip 93AA66B-I/SN is a 4K-bit serial EEPROM with 512x8 or 256x16 organization in an SOIC-8 package. Features 1 MHz max clock frequency, 1 million write/erase cycle endurance, and 200-year minimum data retention. Available from stock with worldwide shipping.

ACTIVEIntegrated CircuitVerified Jul 2026

Package / Visual Reference

93AA66B-I/SNSmall Outline Packages

Quick Facts

Manufacturer: Microchip
Package: Small Outline Packages
Pin Count: 8
Lifecycle: ACTIVE
Datasheet: 93AA66B-I/SN Datasheet PDF
Category: Integrated Circuit
Price: From $0.1880(MOQ 1)
Temp Range: -40.0°C to 85.0°C
RoHS: Compliant
Lead Time: 3–7 business days
Shipping: DHL Express · Worldwide

What are the key features of 93AA66B-I/SN?

4K-bit (4096-bit) serial EEPROM with flexible 512x8 or 256x16 organization supporting SPI-compatible 1 MHz interface
1,000,000 write/erase cycle endurance with 200-year minimum data retention for long-life embedded storage
RoHS-compliant SOIC-8 package (JEDEC e3) with lead-free construction for industrial temperature range applications

What is 93AA66B-I/SN used for?

The 93AA66B-I/SN is suited for storing calibration data, device configuration, and user preferences in microcontroller-based embedded systems. Its 4K-bit capacity and SPI-compatible interface make it a popular choice for consumer electronics, automotive accessories, and industrial sensor nodes. The SOIC-8 package simplifies PCB assembly for both prototyping and high-volume production.

What are the specifications of 93AA66B-I/SN?

Pbfree Code	Yes
Manufacturer Package Code	SOIC-8
Factory Lead Time	23Weeks
YTEOL	8
Clock Frequency-Max (fCLK)	1MHz
Data Retention Time-Min	200
Endurance	1000000 Write/Erase Cycles
JESD-30 Code	R-PDSO-G8
JESD-609 Code	e3
Memory Density	4096bit
Memory IC Type	EEPROM
Memory Width	16
Number of Functions	1
Number of Ports	1
Number of Words	256words
Number of Words Code	256
Operating Mode	SYNCHRONOUS
Organization	256X16
Output Characteristics	TOTEM POLE
Package Body Material	PLASTIC/EPOXY
Package Equivalence Code	SOP8,.25
Package Shape	RECTANGULAR
Package Style	SMALL OUTLINE
Parallel/Serial	SERIAL
Peak Reflow Temperature (Cel)	260
Qualification Status	Not Qualified
Ready/Busy	YES
Reverse Pinout	NO
Screening Level	TS 16949
Serial Bus Type	MICROWIRE
Standby Current-Max	0.000001A
Supply Current-Max	0.002mA
Supply Voltage-Max (Vsup)	5.5V
Supply Voltage-Min (Vsup)	1.8V
Supply Voltage-Nom (Vsup)	2.5V
Surface Mount	YES
Technology	CMOS
Temperature Grade	INDUSTRIAL
Terminal Finish	Matte Tin (Sn)
Terminal Form	GULL WING
Terminal Pitch	1.27mm
Terminal Position	DUAL
Toggle Bit	YES
Write Cycle Time-Max (tWC)	6ms
Write Protection	SOFTWARE
Package	Small Outline Packages

Compliance & Regulatory

RoHS Status	Compliant
Lead-Free	Yes (Pb-Free)
Moisture Sensitivity Level	MSL 1
ECCN	EAR99
HTS Code	8542.32.00.51
Country of Origin	Thailand

Where can I find the 93AA66B-I/SN datasheet?

93AA66B-I/SN Datasheet Download

Official datasheet from Microchip

What are equivalent replacements for 93AA66B-I/SN?

Compatible alternatives and drop-in replacements for 93AA66B-I/SN:

93AA66B-I/MSMicrochip Technology Inc

EEPROM, 256X16, Serial, CMOS, PDSO8

View Part →

Compare all alternatives & request quotes →

Frequently Asked Questions

What is the memory density of the 93AA66B-I/SN?

The 93AA66B-I/SN has a memory density of 4096 bits (4K bits), organized as 512 words of 8 bits (512x8) or 256 words of 16 bits (256x16), selectable via the ORG pin to suit different data width requirements.

What is the maximum clock frequency for the 93AA66B-I/SN?

The 93AA66B-I/SN supports a maximum clock frequency (fCLK) of 1 MHz on its 3-wire serial interface, enabling straightforward integration with most microcontrollers operating at standard SPI speeds.

How many write/erase cycles does the 93AA66B-I/SN support?

The 93AA66B-I/SN is rated for 1,000,000 (one million) write/erase cycles, providing excellent endurance for applications that require frequent data updates such as configuration changes or runtime parameter storage.

What package does the 93AA66B-I/SN use?

The 93AA66B-I/SN is housed in an SOIC-8 (Small Outline IC, 8-pin) surface-mount package with JEDEC code R-PDSO-G8, making it easy to assemble on standard PCBs for both automated and manual soldering.

Is the 93AA66B-I/SN RoHS compliant and what is the lead time?

Yes, the 93AA66B-I/SN is RoHS compliant and lead-free (JESD-609 code e3). The factory lead time is approximately 23 weeks for production orders, so it is recommended to check distributor stock for immediate availability.

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AvailabilityIn Stock

Reference Price (USD)

From $0.1880

Buy from 1pc · Factory-direct pricing

Qty.	Unit Price	Ext. Price
1+	$0.3800	$0.38
10+	$0.3720	$3.72
100+	$0.2660	$26.60
500+	$0.1970	$98.50
2000+	$0.1910	$382.00
3000+	$0.1880	$564.00

pcs

Unit price: $0.3800 · Total: $0.38

In Stock · 24h Response · Worldwide Shipping

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Lead Time3-7 business days

MOQFrom 1 piece

ShippingDHL / FedEx / UPS

OriginChina (Authorized)

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93AA66B-I/SN Microchip Integrated Circuit (Small Outline Packages) In Stock

What are the key features of 93AA66B-I/SN?

What is 93AA66B-I/SN used for?

What are the specifications of 93AA66B-I/SN?

Compliance & Regulatory

Where can I find the 93AA66B-I/SN datasheet?

What are equivalent replacements for 93AA66B-I/SN?

Frequently Asked Questions

What is the memory density of the 93AA66B-I/SN?

What is the maximum clock frequency for the 93AA66B-I/SN?

How many write/erase cycles does the 93AA66B-I/SN support?

What package does the 93AA66B-I/SN use?

Is the 93AA66B-I/SN RoHS compliant and what is the lead time?

Related Guides

How to Choose ERJ-2RKF49R9X and Related Chip Resistors: Selection Guide

How to Choose a Power Inductor Around XAL6060-103MEB

LM34966QPWPRQ1 Converter Selection and Procurement Guide

ERJ-2RKF49R9X Design Guide for PCB Validation

Why Buy from FindMyChip

About Microchip

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