MAX32655

RECOMMENDED FOR NEW DESIGNS

Low-Power, Arm Cortex-M4 Processor with FPU-Based Microcontroller and Bluetooth 5.2

Integrates SIMO Power Regulation, Latest Generation Bluetooth LE 5, RISC-V Coprocessor

Data Sheet (Rev. 4)

Product Selection Table

Part Models: 4
1ku List Price: Starting From $4.87

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Part Details

Ultra-Low-Power Wireless Microcontroller

Internal 100MHz Oscillator
Flexible Low-Power Modes with 7.3728MHz System Clock Option
512KB Flash and 128KB SRAM

Optional ECC on One 32KB SRAM Bank

16KB Instruction Cache

Bluetooth 5.2 LE Radio

Dedicated, Ultra-Low-Power, 32-Bit RISC-V Coprocessor to Offload Timing-Critical Bluetooth Processing
Fully Open-Source Bluetooth 5.2 Stack Available
Supports Medical Body Area Network (MBAN)
High-Throughput (2Mbps) Mode
Long-Range (125kbps and 500kbps) Modes
Rx Sensitivity: −97dBm; Tx Power: +5.5dBm
Single-Ended Antenna Connection (50Ω)

Power Management Maximizes Battery Life

2.0V to 3.6V Supply Voltage Range
Integrated SIMO Power Regulator
12.9μA/MHz Active Current at 3.0V
1.53μA at 3.0V Retention Current for 32KB
Selectable SRAM Retention + RTC in Low-Power Modes

Multiple Peripherals for System Control

Up to Two High-Speed SPI Controller/Target
Up to Three I²C Controller/Target
Up to Four UARTs
Up to One I²S Controller/Target
Up to 8-Input, 10-Bit Sigma-Delta ADC 7.8ksps
Up to Four Micro-Power Comparators
Timers: Four 32-Bit, Two Low Power, One Watchdog, One Low-Power Watchdog
1-Wire^® Controller
Up to Four Pulse Train (PWM) Engines
RTC with Wake-Up Timer
Up to 52 GPIOs

Security and Integrity

Optional Secure Boot
TRNG Seed Generator
AES 128/192/256 Hardware Acceleration Engine

Part Models: 4
1ku List Price: Starting From $4.87

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX32655GWJ+	51 BUMPS WLP PKG. 0.35 m	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX32655GWJ+T	51 BUMPS WLP PKG. 0.35 m	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX32655GXG+	81-CSP_BGA-8X8X1.17	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX32655GXG+T	81-CSP_BGA-8X8X1.17	Material Declaration Reliablity Data	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 1

MAX32655 GitHub no-OS Driver Source Code

Tools & Simulations

Software Development 3

Evaluation Kits

Type 2 EVSE 3.6 kW Charging Cable

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Features and Benefits

Complete reference design for Type 2 EVSE Cordset (IC-CPD)
Power level from 2.3 kW up to 3.6 kW
Designed to comply with the applicable standards - IEC61851, IEC62752
Incorporates a 6 mA DC/30 mA rms RCD and a control pilot circuit
Stuck relay detection and relay state of health
Overtemperature detection
Integrated isolation
Reduced component count for cost optimization
Bluetooth 5.2 interface for connectivity to external devices
Open-source software stack to enable custom firmware development

Product Details

The AD-ACEVSECRDSET-SL is a complete Type 2 EVSE 3.6 kW charging cable solution, providing a reference design intended for evaluation and prototyping of electric vehicle (EV) charging systems.

The system includes a 3-channel isolated sigma-delta (Σ-Δ) ADC for voltage and current measurement on the single-phase power input and measurement of the relay voltage for solder contacts detection and relay state of health. Safe operation is enabled by the inclusion of a 6 mA DC / 30 mA rms RCD. Detection of overvoltage, undervoltage, overcurrent, overtemperature and EV diode presence is also available.

A MAX32655 low-power, ARM^® Cortex^®-M4 Microcontroller implements the logic for system control and communication with the EV over the control pilot interface. A programming and debugging interface are included. The MAX32655 Bluetooth 5.2 interface enables connectivity to external devices.

The design is accompanied by an open-source software stack and reference applications, enabling custom software development to start from a proven implementation validated to meet the applicable standards. An external programmer such as the MAX32625PICO MAXDAP Programming Adapter, or any other similar programmer supporting the SWD interface, is required to enable firmware programming and debug.

The system is designed to comply with the IEC61851 and IEC62752 standards.

APPLICATIONS

EV charging

Resources

AD-ACEVSECRDSET-SL Design and Integration Files
8.49 M

AD-ACEVSECRDSET-SL User Guide

Software

AD-ACEVSECRDSET-SL Software

Evaluation Kit for the MAX32655

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Features and Benefits

MAX32655 Microcontroller
- Arm Cortex-M4F, 100MHz
- 32-Bit RISC-V Coprocessor to Offload Timing-Critical Bluetooth Processing
- 512KB Flash Memory
- 128KB SRAM
- 16KB Cache
- Bluetooth 5.2 LE Radio
- MAX20303 Wearable PMIC with Fuel Gauge
- Charge from USB
- On-Board DAPLink Debug and Programming Interface for Arm Cortex-M4F
- Breadboard Compatible Headers
- Micro USB Connector
- Micro SD Card Connector
Integrated Peripherals
- RGB Indicator LED
- User Pushbutton
- Low-Power Stereo Audio CODEC
- Digital Microphone
- SWD Debugger
- Virtual UART Console

Product Details

The MAX32655FTHR is a rapid development platform to help engineers quickly implement ultra low-power wireless solutions using MAX32655 Arm^© Cortex^®-M4F and Bluetooth^® 5.2 Low Energy (LE). The board also includes the MAX20303 PMIC for battery and power management. The form factor is a small 0.9in x 2.6in dual-row header footprint that is compatible with Adafruit Feather Wing peripheral expansion boards. The board includes a variety of peripherals, such as a digital microphone, low power stereo audio CODEC, 128MB QSPI Flash, micro SD card connector, RGB indicator LED, and pushbutton. The MAX32655FTHR provides a power-optimized flexible platform for quick proof-of-concepts and early software development to enhance time to market.

Applications

Asset Tracking
Fitness/Health and Medical Wearables
Hearables
Industrial Sensors
Wireless Computer Peripherals and I/O Devices

Software

MAX32xxx-MAX78xxx MSDK Software

Evaluation Kit for the MAX32655

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Features and Benefits

External Bluetooth Antenna with SMA Interface
Stereo Audio Codec with Line-In and Line-Out 3.5mm Jacks
Digital Microphone
320 x 240 Color TFT Resistive Touch Display with an SPI Interface
128Mb Quad SPI Flash
USB 2.0 Micro-B to Serial UARTs
UART0 and LPUART Interface Selectable through On-Board Jumpers
All GPIOs Signals Accessed through 0.1in Headers
Access to the Eight Analog Inputs through 0.1in Headers
10-Pin SWD and RV JTAG Connectors
Board Power Provided by USB Port
On-Board 1.8V and 3.3V LDO Regulators
MAX32655 Can be Solely Sourced by the Coin Cell Battery
Individual Power Measurement on All IC Rails through Jumpers
Two General-Purpose LEDs and Two General- Purpose Pushbutton Switches

Product Details

The MAX32655 evaluation kit (EV kit) provides a platform for evaluation capabilities of the MAX32655 microcontroller, which is an advanced system-on-chip (SoC). It features an Arm^® Cortex^®-M4F CPU for efficient computation of complex functions and algorithms, integrated power management (SIMO), and the newest generation Bluetooth^® 5.0 Low Energy (Bluetooth LE), long-range radio for wearable and hearable device applications.

Applications