MAX32662GTJ+

In the DARWIN family, the MAX32662 is an ultra-lowpower, cost-effective, highly integrated 32-bit microcontroller designed for small battery-powered devices. It combines a flexible peripheral and feature mix with the powerful Arm Cortex-M4 processor with floating point unit (FPU) in a small form factor. The MAX32662 enables complex edge-based designs without compromising battery life, and it also offers legacy designs an easy and cost optimal upgrade path from 8- or 16-bit microcontrollers. Integrating 256KB of flash memory and 80KB of SRAM, the MAX32662 easily accommodates sensor code and complex algorithms. Peripherals include SPI, UART, I2C, I2S, CAN 2.0B, and a 12-bit ADC. A ROM-based secure bootloader uses 256-bit elliptic curve digital signature algorithm (ECDSA-256) encryption to ensure trusted and authenticated updates of customer software. The device is available in a 5mm x 5mm, 32-pin TQFNEP.

Applications

• Sports Watches
• Fitness Monitors
• Wearable Medical Patches
• Portable Medical Devices
• Industrial Sensors
• IoT

Key features

• High-Efficiency Microcontroller for Low-Power, High Reliability Devices
• 256KB Flash
• 80KB SRAM, Optionally Preserved in Lowest Power BACKUP Mode
• 16KB Unified Cache
• Memory Protection Unit (MPU)
• Dual- or Single-Supply Operation: 1.7V to 3.6V
• Wide Operating Temperature: -40℃ to +105℃
• Flexible Clock Sources
• Internal High-Speed 100MHz
• Internal Low-Power 7.3728MHz
• Ultra-Low-Power 80kHz
• 16MHz–32MHz (External Crystal Required)
• 32.768kHz (External Crystal Required)
• External Clock Inputs for CPU and Low-Power Timer
• Power Management Maximizes Uptime for Battery Applications
• 50μA/MHz at 0.9V up to 12MHz (CoreMark®) in ACTIVE Mode
• 44μA/MHz at 1.1V up to 100MHz (While(1)) in ACTIVE Mode
• 2.15μA Full Memory Retention Current in BACKUP Mode at VDDIO = 1.8V
• 2.4μA Full Memory Retention Current in BACKUP Mode at VDDIO = 3.3V
• 350nA Ultra-Low-Power RTC
• Wakeup from Low-Power Timer
• Optimal Peripheral Mix Provides Platform Scalability
• Up to 21 General-Purpose I/O Pins
• 4-Channel, 12-Bit, 1Msps ADC
• Two SPI Controller/Target
• One I2S Controller/Target
• Two 4-Wire UART
• Two I2C Controller/Target
• One CAN 2.0B Controller
• 4-Channel Standard DMA Controller
• Three 32-Bit Timers
• One 32-Bit Low-Power Timer
• One Watchdog Timer
• CMOS-Level 32.768kHz Calibration Output
• AES-128/192/256 Hardware Accelerator
• Arm Cortex-M4 Processor with FPUBased Microcontroller (MCU) with 256KB Flash and 80KB SRAM