Maxim Integrated MAX32655 Low-Power Wireless Microcontroller
Maxim Integrated MAX32655 Low-Power Wireless Microcontroller is an advanced System-on-Chip (SoC) featuring an Arm® Cortex®-M4F CPU and integrated BLUETOOTH® 5.2. The MAX32655 also integrates power regulation and management with a Single Inductor Multiple Output (SIMO) buck regulator system. The device offers large onboard memory with 512KB flash and 128KB SRAM, with optional error correction coding on one 32KB SRAM bank. This 32KB bank can be optionally retained in backup mode. An 8KB user One Time Programmable (OTP) area is available, and 8 bytes are retained, even during power-down.
Many high-speed interfaces are supported on the MAX32655 MCU, including multiple QSPI, UART, and I2C, plus one I2S port for connecting to an audio codec. An eight-input, 10-bit Analog-to-Digital Converter (ADC) is available to monitor analog input from external analog sources.
The Maxim Integrated MAX32655 Wireless Microcontroller is available in an 8mm x 8mm CTBGA package, with a -40°C to +105°C operating temperature range.
FEATURES
- Ultra-low-power wireless microcontroller
- Internal 100MHz oscillator
- Flexible low-power modes with 3728MHz system clock option
- 512KB flash and 128KB SRAM
- Optional ECC on one 32KB SRAM bank
- 16KB instruction cache
- Bluetooth 5.2 LE
- Dedicated ultra-low-power, 32-Bit RISC-V coprocessor to offload timing-critical Bluetooth processing
- Fully open-source Bluetooth 5.2 stack available
- Supports AoA, AoD, LE Audio, and Mesh
- High-throughput (2Mbps) mode
- Long-range (125kbps and 500kbps) modes
- Rx sensitivity: -97.5dBm; Tx Power: +4.5dBm
- Single-ended antenna connection (50Ω)
- Power management maximizes battery life
- 0V to 3.6V supply voltage range
- Integrated SIMO power regulator
- Dynamic Voltage Scaling (DVS)
- 8μA/MHz active current at 3.0V
- 4μA at 3.0V retention current for 32KB
- Selectable SRAM retention + RTC in low-power modes
- Multiple peripherals for system control
- Two high-speed SPI master/slave
- Three High-Speed I2C master/slave (3.4Mbps)
- Four UART, One I2S master/slave
- 8-Input, 10-Bit Sigma-Delta ADC 8ksps
- Four micro-power comparators
- Timers: Two 32-Bit, Two LP, Two Watchdog timers
- 1-Wire master
- Four Pulse Train (PWM) engines
- RTC with wake-up timer
- Up to 52 GPIOs
- Security and integrity
- Available secure boot
- TRNG seed generator
- AES 128/192/256 hardware acceleration engine
- Physical characteristics
- -40°C to +105°C operating temperature range
- 8mm x 8mm CTBGA81 package; 0.8mm pitch, 9 x 9 array
- RoHS compliant
APPLICATIONS
- Asset tracking
- Fitness, health, and medical wearables
- Hearables
- Industrial sensors
- Wireless computer peripherals and I/O devices
DEVELOPMENT TOOLS
Maxim Integrated MAX32655 Evaluation Kit
Demonstration and development platform for the MAX32655 Low-Power Wireless Microcontroller.
BLOCK DIAGRAM
