MAX32664GTGZ+

Overview

The MAX32664GTGZ+T is a biometric sensor hub from Analog Devices/Maxim Integrated, housed in a 24-TQFN package. It operates on a single supply voltage ranging from 1.71V to 3.63V, with a typical value of 1.8V. The device features a 96MHz system clock and a 32.768kHz RTC input. It supports fast-mode I2C slave communication at up to 400kHz for host interfacing. The component integrates embedded firmware and algorithms for finger-based pulse heart rate and SpO2 monitoring.

Feature Summary

• Integrates embedded firmware and world-class algorithms for wearable health applications
• Supports direct communication with optical sensors via master I2C interface
• Provides both raw and processed biometric data to the host microcontroller
• Includes a bootloader for secure and authenticated firmware upgrades

Applications

• Wearable fitness devices
• Hearables
• Wearable medical equipment
• Portable medical monitors
• Mobile devices

Procurement Notes

Verify the specific suffix 'GTGZ' against the manufacturer's official ordering guide to confirm package type and RoHS compliance status. Ensure the part number matches the required version (A, B, C, or D) for the intended sensor interface. Confirm availability through authorized distributors as stock levels fluctuate.

Selection Notes

Select this component based on the required sensor interface; Version A and D utilize an I2C interface for sensors, while Versions B and C use SPI. Verify that the application requires finger-based heart rate and SpO2 algorithms compatible with the MAX30101/MAX30102 sensors. Ensure the host microcontroller supports the necessary I2C slave protocol for data retrieval.

Part Context

The MAX32664 is part of a sensor hub family designed for ultra-low power biometric monitoring. It enables customer-desired sensor functionality while keeping overall system power consumption low. The device seamlessly interfaces with Maxim's optical sensor solutions, delivering calculated data to the outside world.

Replacement Considerations

Check for other versions within the MAX32664 family (e.g., MAX32664GTGD+T) if different packaging or sensor interfaces are required. Verify compatibility with existing PCB footprints when substituting between WLP and TQFN packages.