原标题：Maxim MAX32600超低功耗MCU健康产品开发方案

　　Maxim公司的MAX32600是集成了健康传感器模拟前端(AFE)和先进的硬件安全的超低功耗RM Cortex-M3 32位MCU,工作频率高达24MHz,包括256KB闪存,32KB SRAM,2KB指令缓存以及高性能模拟外设.主要用在穿戴医疗电子,血糖仪,脉搏血氧计和皮肤电反应测量.本文介绍了MAX32600主要特性和优势以及其它特性,功能框图,以及MAX32600评估板主要特性,框图,电路图和材料清单.

　　The MAX32600 microcontroller is based on the industry-standard ARM® Cortex®-M3 32-bit RISC CPU operating at up to 24MHz. It includes 256KB of flash memory, 32KB of SRAM, a 2KB instruction cache, and integrated high-performance analog peripherals.

　　The MAX32600 comes in 192-ball, 12mm x 12mm CTBGA and 120-ball, 7mm x 7mm CTBGAand 108-ball WLP packages.

　　MAX32600主要特性和优势:

　　Integrated AFE Enables Precision Wellness Measurements with Minimal Discretes 16-Bit ADC with Input Mux and PGA Up to 500ksps Conversion Rate PGA with Gain of 1, 2, 4, and 8 and Bypass Mode Differential 8:1 or Single-Ended 16:1 Input Mux Internal Mux Inputs for Measuring VDDA3

　　Internal or External Voltage Reference Programmable Buffers for ADC and DACs

　　Two 12-Bit DACs and Two 8-Bit DACs

　　Four Operational Amplifiers

　　Four Low-Power Comparators

　　Four Uncommitted SPST Analog Switches

　　Four Ground Switches

　　Up to Eight 100mA LED Driver Pairs (Sink)

　　Internal Temperature Sensor

　　Secure Valuable IP and Data with Robust On-Board Trust Protection Unit Trust Protection Unit for End-to-End Security

　　AES Hardware Engine

　　MAA for ECDSA and RSA

　　Hardware PRNG

　　Fast-Erase SRAM for Secure Key Storage

　　Industry’s Lowest Overall System Power Increases Battery Life 175μA/MHz Active Power Executing Code from Cache

　　Less Than 1.0μA Low-Power Mode 0 (LP0) Current

　　Multiple Power Management Modes to Optimize Power Consumption

　　Peripheral Clock Control

　　6-Channel DMA Engine Enables Intelligent Peripheral Operation While Micro is in Sleep Mode

　　MAX32600其它特性:

　　Industry-Standard Core and Flexible Peripherals Enable Rapid Prototyping for Improved Time to Market ARM Cortex-M3 32-Bit RISC CPU Single-Cycle Multiplication Nested Vectored Interrupt Controller

　　Memory 256KB Flash Memory with 2KB Instruction Cache 32KB SRAM

　　Supply Voltage 1.8V to 3.6V Digital Supply Voltage 2.3V to 3.6V Analog Supply Voltage

　　Tool Chains Supported Include GNU, Eclipse, and IAR

　　Digital and Communication Peripherals 4 × 32-Bit Timers, Configurable to 8 x 16-Bit 32-Bit Real-Time Clock with Subsecond Alarm and Two Time-of-Day Alarms Dedicated Backup Supply Pin and Trickle Charge Four Programmable Supply Voltage Detectors Power-On-Reset/Brownout Reset Two Programmable Windowed Watchdog Timers Three SPI Masters, Two UARTs, Two I2C Masters, and One I2C Slave Port Up to 64 GPIO Pins with External Interrupt and Wake from Low-Power Mode Support

　　USB Device Interface 2.0 Full-Speed Compliant USB Integrated Transceiver with Regulator, On-Chip Termination and Pullup Resistors 5V to 3.3V Regulation with Integrated Supply Management to Enable USB-Compliant Switching Dedicated USB DMA Engine Allows Automatic Transfer of Endpoint Data to/from SRAM

　　Pulse Train Engine with Eight Digital Output Channels and 5 Analog Control Outputs

　　Clock Sources 32kHz Crystal Oscillator for Accurate RTC External High-Frequency Crystal Oscillator PLL Generates 48MHz USB Clock (2x/4x/6x HFX) Internal 24MHz ±1% Oscillator

　　LCD Controller 96, 128, or 160 Segments 4 x 24, 4 x 32, 4 x 40 Static, 1/2, 1/3, and 1/4 Duty Cycle Boost Converter for 3.3V VLCD Operation Adjustment Resistor for Contrast Control Eliminates Requirement for External Components

　　Flexible Package Options 120-Ball CTBGA, 0.5mm Pitch, 7mm x 7mm

　　192-Ball CTBGA, 0.65mm Pitch, 12mm x 12mm

　　MAX32600应用:

　　Wearable Medical Devices

　　Pulse Oximetry Measurement

　　Galvanic Skin Response Measurement

　　Blood Glucose Metering

　　图1. MAX32600简化功能框图

　　图2. MAX32600功能框图

　　MAX32600评估板

　　The MAX32600 evaluation kit (EV kit) provides a convenient platform for evaluating the capabilities of the MAX32600 wellness measurement microcontroller. The EV kit also provides a complete functional system, ideal for developing and debugging applications.

　　The evaluation board includes a MAX32600 circuit, mul­tiple power options, headers for access to the processor’s I/O port pins and analog front-end devices, an 8-digit LCD display, USB interface, UART interface, low-power Bluetooth transceiver, and other general-purpose IO devic­es.

　　图3. MAX32600评估板外形图

　　MAX32600评估板特性和优势:

　　Easily Load and Debug Code Using the Included JTAG Adapter

　　Selectable Power Sources Including USB, Coin Cell, Two AAA Batteries, or a Bench Power Supply

　　Headers for Accessing MAX32600 I/O Pins and Analog Front-End (AFE) Input and Output Signals

　　On-Board 8-Digit Alphanumeric LCD Glass

　　MAX32600 Internal Real-Time Clock (RTC) with On-Board Supercap Keep-Alive Power

　　On-Board Bluetooth 4.0 BLE Transceiver

　　General-Purpose Pushbutton Switch, Indicator LEDs, and Beeper (All Connected to GPIOs) for User I/O

　　Prototyping Matrix (0.1in Grid) with Integrated Power Rails for Customer Circuitry

　　Proven PCB Layout

　　Fully Assembled and Tested

　　MAX32600评估板主要特性:

　　Easily Load and Debug Code Using the Included JTAG Adapter

　　Selectable Power Sources Including USB, Coin Cell, Two AAA Batteries, or a Bench Power Supply

　　Headers for Accessing MAX32600 I/O Pins and Analog Front-End (AFE) Input and Output Signals

　　On-Board 8-Digit Alphanumeric LCD Glass

　　Applications/Uses

　　Blood Glucose Metering

　　Galvanic Skin Response Measurement

　　Pulse Oximetry Measurement

　　Wearable Medical Devices

　　MAX32600评估套件包括:

　　EV Kit Board Containing a MAX32600 with Preprogrammed Demo

　　Olimex ARM®-USB-TINY-H JTAG Adapter with JTAG Ribbon Cable

　　USB Standard A-to-Standard-B Cable (for Connecting the Olimex JTAG Adapter to a PC)

　　USB Standard-A-to-Standard-B Cable

　　USB Standard-A-to-Micro-B adapter Cable

　　Quick Start Guide

　　图4. MAX32600评估套件外形图