1. Products
  2. Interface and Isolation
  3. Level Translators
  4. MAX6621


Features and Benefits

  • 400kbps I²C-Compatible, 2-Wire Serial Interface
  • +3V to +3.6V Supply Voltage
  • PECI 1.0-Compliant Port
  • PECI-to-I²C Translation
  • Active-Low ALERT Output
  • Active-Low RESET Input (May Be Disabled as a Factory Option)
  • Programmable Temperature Offsets
  • -20°C to +120°C Operating Temperature Range
  • VREF Input Refers Logic Levels to the PECI Supply Voltage
  • Automatic I²C Bus Lockup Timeout Reset
  • Lead-Free, 10-Pin µMAX® Package

Product Details

The MAX6621 PECI-to-I²C translator provides an efficient, low-cost solution for PECI-to-SMBus™/I²C protocol conversion. The PECI-compliant host reads temperature data directly from up to four PECI-enabled CPUs. Interrupts are generated when the measured temperature exceeds the high-temperature limit and causes the active-low ALERT to assert. The active-low RESET input allows the host to reset the I²C bus in the event of a communication error.

The I²C interface provides an independent serial communication channel to communicate synchronously with peripheral devices in a multiple master or multiple slave system. This interface allows a maximum serial-data rate of 400kbps.

The MAX6621 is designed to operate from a +3.0V to +3.6V supply voltage and ambient temperature range of -20°C to +120°C.


  • Desktop Computers
  • Servers
  • Workstations

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX6621AUB+ Material Declaration Reliability Data 10-MINI_SO-N/A
MAX6621AUB+T Material Declaration Reliability Data 10-MINI_SO-N/A
Wafer Fabrication Data MAX6621 Reliability Data

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Sample & Buy

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Buy Now Pricing

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List Pricing

(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Lead Times

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