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HomeProductsIntegrated Circuits (ICs)MemoryAT93C66B-MEHM-T
Microchip Technology
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AT93C66B-MEHM-T - Microchip Technology

Manufacturer Part Number
AT93C66B-MEHM-T
Manufacturer
Microchip Technology
Allelco Part Number
32D-AT93C66B-MEHM-T
ECAD Model
Parts Description
IC EEPROM 4KBIT 3-WIRE 8XDFN
Detailed Description
Package
8-XFDFN
Data sheet
AT93C56B,66B.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 13360

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Specifications

AT93C66B-MEHM-T Tech Specifications
Microchip Technology - AT93C66B-MEHM-T technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology - AT93C66B-MEHM-T

Product Attribute Attribute Value  
Manufacturer Microchip Technology  
Write Cycle Time - Word, Page 5ms  
Voltage - Supply 1.7V ~ 5.5V  
Technology EEPROM  
Supplier Device Package 8-XDFN (1.8x2.2)  
Series Automotive, AEC-Q100  
Package / Case 8-XFDFN  
Package Tape & Reel (TR)  
Operating Temperature -40°C ~ 85°C (TA)  
Product Attribute Attribute Value  
Mounting Type Surface Mount  
Memory Type Non-Volatile  
Memory Size 4Kbit  
Memory Organization 256 x 16, 512 x 8  
Memory Interface 3-Wire Serial  
Memory Format EEPROM  
Clock Frequency 2 MHz  
Base Product Number AT93C66B  

Parts Introduction

Manufacturer Part Number

AT93C66B-MEHM-T

Manufacturer

microchip-technology

Introduction

The AT93C66B is a 4Kbit Electrically Erasable Programmable Read-Only Memory (EEPROM) device organized as 256 words by 16 bits or 512 words by 8 bits. It features a 3-wire serial interface and operates over a wide voltage range of 1.7V to 5.5V, making it suitable for a variety of applications, including automotive, industrial, and consumer electronics.

Product Features and Performance

4Kbit EEPROM memory organized as 256 x 16 or 512 x 8

3-wire serial interface

Operating voltage range of 1.7V to 5.5V

Maximum clock frequency of 2 MHz

Fast word/page write cycle time of 5ms

Wide operating temperature range of -40°C to +85°C

Automotive-grade qualification to AEC-Q100

Surface mount 8-XFDFN package

Product Advantages

Wide voltage range operation for versatile applications

Fast write cycle time for efficient data storage and updates

Automotive-grade qualification for reliable performance in harsh environments

Small footprint 8-XFDFN package for space-constrained designs

Key Reasons to Choose This Product

Robust and reliable EEPROM solution for automotive, industrial, and consumer applications

Flexible voltage operation and high-speed interface for easy integration

Automotive-grade qualification ensures long-term reliability and performance

Compact package size enables miniaturization of end products

Quality and Safety Features

Automotive-grade qualification to AEC-Q100

Robust design for reliable operation in harsh environments

Rigorous quality control and testing processes

Compatibility

The AT93C66B is a standard EEPROM device that is compatible with a wide range of microcontrollers and processors with 3-wire serial interfaces.

Application Areas

Automotive electronics (e.g., engine control units, body control modules, infotainment systems)

Industrial automation and control systems

Consumer electronics (e.g., home appliances, remote controls)

General-purpose non-volatile data storage and configuration

Product Lifecycle

The AT93C66B is an obsolete product, and Microchip Technology no longer manufactures this specific model. However, there are several equivalent and alternative EEPROM products available from Microchip, such as the AT93C46B, AT93C56B, and AT93C66C. Customers are advised to contact our website's sales team for more information on suitable replacement options.

Parts with Similar Specifications

The three parts on the right have similar specifications to Microchip Technology AT93C66B-MEHM-T

Product Attribute AT93C66B-MEHM-T AT93C66B-MAHM-T AT93C66B-SSHM-B AT93C66B-XHM-T
Part Number AT93C66B-MEHM-T AT93C66B-MAHM-T AT93C66B-SSHM-B AT93C66B-XHM-T
Manufacturer Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package Tape & Reel (TR) Tape & Reel (TR) Tube Tape & Reel (TR)
Memory Type Non-Volatile Non-Volatile Non-Volatile Non-Volatile
Technology EEPROM EEPROM EEPROM EEPROM
Base Product Number AT93C66B 93C66B 93C66B 93C66B
Memory Organization 256 x 16, 512 x 8 512 x 8, 256 x 16 512 x 8, 256 x 16 512 x 8, 256 x 16
Clock Frequency 2 MHz 2 MHz 2 MHz 2 MHz
Package / Case 8-XFDFN 8-UFDFN Exposed Pad 8-SOIC (0.154', 3.90mm Width) 8-TSSOP (0.173', 4.40mm Width)
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Series Automotive, AEC-Q100 - - -
Voltage - Supply 1.7V ~ 5.5V 1.7V ~ 5.5V 1.7V ~ 5.5V 1.7V ~ 5.5V
Write Cycle Time - Word, Page 5ms 5ms 5ms 5ms
Memory Format EEPROM EEPROM EEPROM EEPROM
Supplier Device Package 8-XDFN (1.8x2.2) 8-Mini Map (2x3) 8-SOIC 8-TSSOP
Memory Interface 3-Wire Serial 3-Wire Serial 3-Wire Serial 3-Wire Serial
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Memory Size 4Kbit 4Kbit 4Kbit 4Kbit

AT93C66B-MEHM-T Datasheet PDF

Download AT93C66B-MEHM-T pdf datasheets and Microchip Technology documentation for AT93C66B-MEHM-T - Microchip Technology.

Datasheets
AT93C56B,66B.pdf
PCN Obsolescence/ EOL
Mult Dev EOL 20/May/2021.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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Microchip Technology

AT93C66B-MEHM-T

Microchip Technology
32D-AT93C66B-MEHM-T

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