MAX32664GTGC+

Overview

The MAX32664GTGC+T is a biometric sensor hub from Analog Devices/Maxim Integrated, designed for wearable health applications. It operates on a single 1.8V supply (range 1.71V to 3.63V) and supports an operating temperature range of -40°C to +105°C. The device features a fast-mode slave I2C interface for host communication and includes embedded firmware with algorithms for pulse heart rate and SpO2 measurement. It interfaces with sensors via master I2C or SPI depending on the version. The component is available in a 16-bump WLP or 24-pin TQFN package.

Feature Summary

• Embedded biometric algorithms for finger-based and wrist-based monitoring
• Supports both raw and processed data delivery to the host microcontroller
• Integrated real-time clock and FIFO for minimal host processor interaction
• Secure bootloader for authenticated firmware upgrades

Applications

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

Procurement Notes

Verify the specific suffix against the manufacturer's ordering guide to confirm the exact algorithm version and package type. Confirm RoHS compliance status through official documentation. Ensure the selected variant matches the required sensor interface (I2C or SPI) for the target application design.

Selection Notes

Select the appropriate version based on the intended monitoring location: Version A/D for finger-based applications requiring SpO2, or Version B/C for wrist-based monitoring. Verify compatibility with the target optical sensor, such as the MAX30101/102 or MAX86140/141. Consider the physical footprint constraints when choosing between the 16-WLP and 24-TQFN packages.

Part Context

The MAX32664 belongs to a family of ultra-low power biometric sensor hubs. It is distinct from general-purpose microcontrollers by focusing specifically on sensor fusion and algorithm execution for vital sign monitoring. It serves as a bridge between optical sensors and the main system processor, offloading complex signal processing tasks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.