Описание
The MAX32621 is a 32-bit RISC ARM Cortex -M4F (M4 plus Floating Point Unit) microcontroller. It is ideally suited for the emerging category of medical and fitness applications. The architecture combines high-efficiency, signal-processing functionality with low cost, and ease of use. The device features 4 powerful and flexible power modes. Built-in dynamic clock gating and firmware controlled power gating minimize power consumption for any application. Multiple SPI, UART, and I²C serial interfaces, as well as a 1-Wire master and USB, allow for interconnection to a wide variety of external sensors. A four-input, 10-bit ADC with selectable references is provided. The MAX32621 is a secure version of the MAX32620, incorporating a trust protection unit (TPU) with encryption and advanced security features.
- High-Efficiency Microcontroller for Rechargeable Devices
- Internal Oscillator Operates Up to 96MHz
- Floating Point Unit
- Memory Protection Unit
- 2MB Flash Memory
- 256KB SRAM
- 8KB Instruction Cache
- 1.2V ±5% Core Supply Voltage
- 1.8V ±5% I/O and Analog Supply Voltage
- Optional 3.3V ±5% USB Supply Voltage
- Tiny 81-Ball WLP Minimizes Board Space (3.9mm x 3.9 mm WLP, 0.4 mm Pitch)
- Power Management Maximizes Uptime for Battery Applications
- 95µA/MHz Active Executing from Flash
- 600nA Low Power (LP0) Mode with RTC Enabled
- 2.5µA Ultra-Low Power Data Retention Mode (LP1) with Fast 5µs (typ) Wakeup to 96MHz
- Peripheral Management Unit (PMU) Reduces Power Consumption in Measurement Mode (LP2)
- Optimal Peripheral Mix Provides Platform Scalability
- Three SPI Masters, Four UARTs, Three I2C Masters, and One 1-Wire Master
- 49 General-Purpose I/O Pins
- SPI Execute in Place Engine for Memory Expansion with Minimal Footprint
- Full-Speed USB 2.0 with Internal Transceiver
- Sixteen Pulse Train Engines
- Four-Input, 10-Bit Sigma-Delta ADC Operating at 7.8 kS/s
- Trust Protection Unit (TPU) Secures Valuable IP and Data
- Robust Hardware Internal Security
- High-Speed Modular Arithmetic Accelerator (MAA) Supports Fast ECDSA
- AES Hardware Engine
- Hardware PRNG Entropy Generator
- Secure Boot Loader
