MAX32664GTGB+T

Overview

The MAX32664GTGB+T is a biometric sensor hub from Analog Devices/Maxim Integrated, designed for wearable health applications. It integrates embedded firmware and algorithms to process data from optical sensors like the MAX86140/86141. The device features a fast-mode slave I2C interface for host communication and a master SPI interface for sensor connectivity. Key metrics include a supply voltage range of 1.71V to 3.63V, a system clock frequency of 96MHz, and an RTC input frequency of 32.768kHz. It operates within a temperature range of -40°C to +105°C and is available in a 16-bump WLP package.

Feature Summary

• Supports wrist-based pulse heart rate monitoring algorithms compatible with specific optical sensors.
• Provides both raw and processed biometric data through a dedicated slave I2C interface.
• Includes a bootloader for secure and authenticated firmware upgrades.
• Integrates a real-time clock (RTC) and FIFO buffer to minimize host processor interaction.

Applications

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

Procurement Notes

Verify the exact version suffix against the manufacturer's ordering guide to ensure correct algorithm support and sensor interface compatibility. Confirm RoHS compliance status and packaging specifications directly with authorized distributors or the manufacturer before placing orders.

Selection Notes

Select this component for applications requiring low-power biometric processing with minimal host CPU involvement. Ensure the design supports the required 1.71V to 3.63V supply range and accommodates the necessary external crystal for the RTC function.

Part Context

This part belongs to the MAX32664 family of ultra-low power biometric sensor hubs. It is specifically engineered to offload complex signal processing tasks from the main microcontroller, enabling extended battery life in compact wearable form factors.

Replacement Considerations

Check for other versions within the MAX32664 family that may offer different sensor interfaces (I2C vs. SPI) or algorithm sets if the current variant does not fully meet application requirements.

FAQ

What type of interface does the MAX32664GTGB+T use to communicate with sensors?

It uses a master mode SPI interface for communication with sensors.

Which biometric parameters are measured by the wrist-based algorithms in this device?

The wrist-based algorithms measure pulse heart rate.

How does the device handle firmware updates?

A built-in bootloader facilitates secure and authenticated firmware upgrades.