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[原创] Maxim MAX32620-1高性能超低功耗MCU可充电设备开发方案

关键词:ARM Cortex-M4 MCU 可穿戴设备 手持媒体播放器

时间:2017-06-09 10:44:57       作者:Maxim       来源:中电网

Maxim公司的MAX32620/MAX32621是带有FPU的高性能超低功耗的32位RISCARM® Cortex®-M4内核的微控制器,内部的96MHz提供了高性能,而4MHz振荡器支持需要经常监视的应用时的最小化功耗. 器件集成了2MB/1MB闪存,256KB SRAM,8KB指令缓存,核电压1.2V,1.8V-3.3V I/O,主要用在体育用手表,健身监视器,可穿戴医疗设备,手持媒体播放器和传感器集线器.本文介绍了MAX32620/MAX32621主要优势和特性,框图和可穿戴应用电路,以及评估板MAX32620 EVK主要优势和特性,框图,电路图和材料清单.

The MAX32620/MAX32621 is a 32-bit RISC ARM® Cortex®-M4 with FPU-based 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. An internal 96MHz oscillator provides high-performance capability, and the internal 4MHz oscillator supports minimal power consumption for applications requiring always-on monitoring.

The device features 4 powerful & 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, interconnect 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. It incorporates a trust protection unit (TPU) with encryption and advanced security features. These features include a modular arithmetic accelerator (MAA) for ECDSA, a true random number generator (TRNG), and a secure boot loader. Both the MAX32620 and the MAX32621 provide a hardware AES engine.

The MAX32620L is a reduced memory version of the MAX32620, providing 1MB of flash memory and 256kB of SRAM.The enhanced features described in this data sheet apply to C and later revisions of the device. The MAX32620/MAX32621 supports a legacy mode making it compatible with first generation (revision A) of the device.

MAX32620/MAX32621主要优势和特性:

High-Efficiency Microcontroller for Wearable DevicesInternal Oscillator Operates Up to 96MHz
Low Power 4MHz Option for Always-On Monitoring
2MB/1MB Flash Memory
256KB SRAM
8KB Instruction Cache
1.2V Core Supply Voltage
1.8V to 3.3V I/O
Optional 3.3V ±5% USB Supply Voltage
Wide Operating Temperature: -30℃ to +85℃
Power Management Maximizes Uptime for Battery Applications122μW/MHz Active Executing from Cache
62μW/MHz Active Executing from Flash
Wake-Up to 96MHz Clock or 4MHz Clock
1.06μW Low Power Mode (LP0) Mode with RTC
2.67μW Ultra-Low Power Data Retention Sleep Mode (LP1) with Fast 5μs (typ) Wakeup on 96MHz
28μW/MHz Low Power Mode (LP2) Current
Optimal Peripheral Mix Provides Platform Scalability Three SPI Masters, One SPI Slave
Four UARTs
Up to Three I2C Masters, One I2C Slave
1-Wire® Master
Up to 49 General-Purpose I/O Pins
SPI Execute in Place (SPIX) Engine for Memory Expansion with Minimal Footprint
Full-Speed USB 2.0 with Internal Transceiver
Sixteen Pulse Train Engines
Six 32-Bit or 12 16-Bit Timers
Three Watchdog Timers with Independent Sources
Four-Input, 10-Bit Sigma-Delta ADC Operating at 7.8kS/s, 5.5V, and 1.8V Tolerant Inputs
AES-128, -192, -256 Hardware Engine
CMOS-Level 32kHz RTC Output Option
JTAG 1149.1 Compatible with Serial Wire Debug
Secure Valuable IP and Data with Robust Internal Hardware Security (MAX32621 Only)Trust Protection Unit (TPU) Provides ECDSA and Modular Arithmetic Acceleration Support
True Random Number Generator (TRNG)
Secure Boot Loader
MAX32620/MAX32621应用:
Sport Watches
Fitness Monitors
Wearable Medical Patches
Portable Medical Devices
Sensor Hub

图1.MAX32620/MAX32621框图

图2.MAX32620/MAX32621应用电路:可穿戴心脏监视器

评估板MAX32620 EVK

The MAX32620 and MAX32621 evaluation kits (EV kits) provide a convenient platform for evaluating the capa­bilities of the MAX32620 and MAX32621 microcontrollers, respectively. While the MAX32620 EV kit includes a MAX32620 soldered directly to the board, the MAX32621 EV kit features a socketed MAX32621. Each EV kit also provides a complete, functional system ideal for develop­ment and debugging applications. Except where stated otherwise, the following sections apply to both EV kits.

评估板MAX32620 EVK主要优势和特性:

Easily Load and Debug Code Using the Supplied Olimex ARM-USB-TINY-H JTAG Debugger Connected Through a Standard 20-Pin ARM JTAG Header
Headers for Accessing the IC’s Pins and Analog Front End (AFE) Input Signals
Micro-USB Type-B Connection to the IC’s USB Device Controller
Micro-USB Type-B Connection to USB-UART Bridge Selectable Between the IC’s Internal UART 0 and UART 1 On-Board Bluetooth® 4.0 BLE Transceiver with Chip Antenna

评估板MAX32620 EVK包括:

EV Kit Board with a MAX32620 Soldered Down (MAX32620 EV Kit Only)
EV Kit Board with a Socketed MAX32621 (MAX32621 EV Kit Only)
Olimex ARM-USB-TINY-H JTAG Debugger with JTAG Ribbon Cable (for Connecting from Debugger to EV Kit Header J1) and USB Standard A-to-B cable (for Connecting from PC to Debugger)
Two Standard-A to Micro-B USB Cables (for Connecting from a PC or Stand-Alone USB Power Supply to EV Kit Connectors CN1 and CN2)
MAX32620/MAX32621 EV Kit Quick Start
Hex Keys for the Socket (MAX32621 EV Kit Only)


图3.评估板MAX32620 EVK外形图

图4.评估板MAX32620 EVK框图

图5.评估板MAX32620 EVK电路图(1)

图6.评估板MAX32620 EVK电路图(2)

图7.评估板MAX32620 EVK电路图(3)

图8.评估板MAX32620 EVK电路图(4)

图9.评估板MAX32620 EVK电路图(5)
评估板MAX32620 EVK材料清单:


详情请见:
https://datasheets.maximintegrated.com/en/ds/MAX32620-MAX32621.pdf
https://datasheets.maximintegrated.com/en/ds/MAX32620-EVKIT.pdf
MAX32620-EVKIT.pdf
MAX32620-MAX32621.pdf

 

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