EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX32660 Tiny, Ultra-Low-Power Arm Cortex-M4 Processor with FPU-Based Microcontroller (MCU) with 256KB Flash and 96KB SRAM General Description Benefits and Features In the DARWIN family, the MAX32660 is an ultra-low-pow- High-Efficiency Microcontroller for Wearable Devices er, cost-effective, highly-integrated 32-bit microcontroller Internal Oscillator Operates Up to 96MHz designed for battery-powered devices and wireless sen- 256KB Flash Memory 96KB SRAM, Optionally Preserved in Lowest sors. It combines a flexible and versatile power manage- ment unit with the powerful Arm Cortex-M4 processor Power Backup Mode 16KB Instruction Cache with floating point unit (FPU) in the industrys smallest form factor: 1.6mm x 1.6mm, 16-bump WLP or 4mm x 4mm, Memory Protection Unit (MPU) Low 1.1V V Supply Voltage 20-pin TQFN-EP, or 3mm x 3mm, 24-pin TQFN-EP. CORE 3.6V GPIO Operating Range The MAX32660 enables designs with complex sensor Internal LDO Provides Operation from Single Supply processing without compromising battery life. It also offers Wide Operating Temperature: -40C to +105C legacy designs an easy and cost optimal upgrade path from 8- or 16-bit microcontrollers. Power Management Maximizes Uptime for Battery Applications 2 The device supports SPI, UART, and I C communication 85A/MHz Active Executing from Flash while also integrating up to 256KB of flash memory and 2A Full Memory Retention Power in Backup Mode 96KB of RAM to accommodate application and sensor at V = 1.8V 2 DD code. An optional bootloader through I C, UART, or SPI is 450nA Ultra-Low Power RTC at V = 1.8V DD available. Internal 80kHz Ring Oscillator Applications Optimal Peripheral Mix Provides Platform Scalability Sports Watches Up to 14 General-Purpose I/O Pins Up to Two SPI Master/Slave Fitness Monitors 2 I S Master/Slave Wearable Medical Patches Up to Two UARTs Portable Medical Devices 2 Up to Two I C Master/Slave, 3.4Mbps High Speed Four-Channel Standard DMA Controller Industrial Sensors Three 32-Bit Timers IoT Watchdog Timer Optical Modules: QSFP-DD, QSFP, 400G CMOS-Level 32.768kHz RTC Output Ordering Information appears at end of data sheet. Arm and Cortex are registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere. 19-100236 Rev 8 9/19MAX32660 Tiny, Ultra-Low-Power Arm Cortex-M4 Processor with FPU-Based Microcontroller (MCU) with 256KB Flash and 96KB SRAM Simplified Block Diagram MAX32660 HOST HFIO UP TO 96MHz ARM CORTEX-M4 PROCESSOR 32.768kHz WITH FPU CPU 80kHz NVIC 32-BIT TIMER MEMORY POR, GPIO AND BROWNOUT 2 SPI MASTER/ FLASH SHARED PAD MONITOR, RSTN SLAVE 256KB FUNCTIONS SUPPLY VOLTAGE 2 I S SLAVE MONITORS TIMER SRAM GPIO SPI 96KB 2 /ALTERNATE 2 I C 2 I C MASTER/ FUNCTION V UART CORE SLAVE UP TO 14 2 I S 16KB CACHE 32kHz OUTPUT REGULATOR/ V DD POWER CONTROL 2 UART EXTERNAL V INTERRUPTS SS STANDARD DMA SERIAL WIRE DEBUG WATCHDOG TIMER (SWD) 2 32 BIT TIMER 32KIN RTC 32KOUT Maxim Integrated 2 www.maximintegrated.com BUS MATRIX AHB, APB, IBUS, DBUS