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MAX32680

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Ultra-Low-Power Arm Cortex-M4F with Precision Analog Front-End and Bluetooth LE 5.2

Integrates Precision Analog Front-End, SIMO Power Regulation, Latest Generation Bluetooth LE 5, and RISC-V Coprocessor

INTERACTIVE Data Sheet

Product Details

Overview

General Description

The device offers large onboard memory with 512KB flash and 128KB SRAM, with optional error correction coding (ECC) 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.

An analog front-end (AFE) provides two 12-channel delta-sigma (Δ-Σ) analog-to-digital converters (ADC) with features and specifications optimized for precision sensor measurement. Each Δ-Σ ADC can digitize external analog signals as well as system temperature. An optional programmable gain amplifier (PGA) with gains of 1x to 128x precedes each ADC. ADC outputs can be optionally converted on the fly from integer to single-precision floating-point format. A 12-bit digital-to-analog converter (DAC) is also included. The device also provides robust security features such as an advanced encryption standard (AES) engine, true random number generator (TRNG), and secure boot.

The device is available in an 88L LGA (10mm x 10mm, 0.4mm pitch) package.

Simplified Block Diagram

Benefits and Features

Ultra-Low-Power Wireless Microcontroller
- Internal 100MHz Oscillator
- 512KB Flash and 128KB SRAM
  - Optional ECC on One 32KB SRAM Bank
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 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)
Smart Integration Reduces BOM, Cost, and PCB Size
- Two 16-Bit to 24-Bit Δ-Σ ADCs
  - 12 Channels, Assignable to Either ADC
  - Flexible Resolution and Sample Rates
    - 24-Bits at 0.4ksps, 16-Bits at 4ksps
- Four External Input, 10-Bit Δ-Σ ADC 7.8ksps
- 12-Bit DAC
- On-Die Temperature Sensor
- Digital Peripherals: Two SPI, Two I²C, up to Four UART, and up to 36 GPIOs
- Timers: Six 32-Bit Timers, Two Watchdog Timers, Two Pulse Trains, 1-Wire^® Master
Power Management Maximizes Battery Life
- 2.0V to 3.6V Supply Voltage Range
- Integrated SIMO Power Regulator
- Dynamic Voltage Scaling (DVS)
- 23.8μA/MHz ACTIVE Mode Current at 3.0V Coremark^®
- 4.4μA at 3.0V Retention Current for 32KB SRAM
- Selectable SRAM Retention in Low-Power Modes
Robust Security and Reliability
- TRNG
- Secure Nonvolatile Key Storage and AES-128/192/256
- Secure Boot to Protect IP/Firmware
- Wide, -40°C to +85°C Operating Temperature

Applications

Industrial Pressure, Temperature, Level, and Flow Sensors/Transmitters
Medical Pressure and Temperature Sensors

1-Wire is a registered trademark of Maxim Integrated Products, Inc.

Arm and Cortex are registered trademarks of Arm Limited.

Bluetooth is a registered trademark of Bluetooth SIG, Inc.

Cordio is a registered trademark of Sunrise Micro Devices, Inc.

Coremark is a registered trademark of EMBCC.

19-101233; Rev 0; 8/21

See parametric specs for Microcontrollers

Key Features

See parametric specs for Microcontrollers

Parametric specs for Microcontrollers

MCU Core	ARM Cortex-M4F
Internal Flash (KBytes)	512
Core Clock Speed (MHz) (max)	100
Data Processing	32-bit
Internal SRAM (KBytes)	128
Package/Pins	LGA HYBRID/88
Budgetary Price (See Notes)	8.09

See parametric specs for Microcontrollers

View Less

Simplified Block Diagram

Technical Docs

	Data Sheet	Ultra-Low-Power Arm Cortex-M4F with Precision Analog Front-End and Bluetooth LE 5.2	Sep 21, 2021
	User Guide	MAX32680 User Guide

Design & Development

Click any title below to view the detail page where available.

Evaluation Board

MAX32680EVKIT

Data Sheet

$170.13

Description/Applications

The MAX32680 evaluation kit (EV kit) provides a platform for evaluation capabilities of the MAX32680 microcontroller, which is an advanced system-on-chip (SoC) designed for industrial and medical sensors. Power regulation and management is provided by a single-inductor multiple-output (SIMO) buck regulator system and contains the latest generation Bluetooth^® 5.2 Low Energy (LE) radio.

View Details

Features

SMA Connector for Attaching an External Bluetooth Antenna
128 x 128 (1.45in) Color TFT Display with SPI Interface
Two Selectable On-Board, High-Precision Voltage References
USB 2.0 Micro B to Serial UARTs
UART1 and LPUART0 Interface is Selectable Through On-Board Jumpers
All GPIOs Signals Accessed Through 0.1in Headers
Access to Four Analog Inputs Through SMA Connectors Configured as Differential
Access to Eight Analog Inputs Through 0.1in Headers Configured as Single-End
Optional Discrete Filter for the Twelve Analog Inputs
DAC Accessed Through SMA Connector or Test Point
10-Pin SWD Connector
10-Pin RV JTAG Connector
Board Power Provided by USB Port
On-Board 3.3V LDO Regulator to Power MAX32680 Internal SIMO
Test Loops Provided to Supply Optional VCORE Power Externally
Individual Power Measurement on All IC Rails Through Jumpers
Two General Purpose LEDs and Two General Purpose Pushbutton Switches

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact [email protected] with any questions regarding this Sample Site.

Overview

General Description

The device is available in an 88L LGA (10mm x 10mm, 0.4mm pitch) package.

Simplified Block Diagram

Benefits and Features

Ultra-Low-Power Wireless Microcontroller
- Internal 100MHz Oscillator
- 512KB Flash and 128KB SRAM
  - Optional ECC on One 32KB SRAM Bank
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 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)
Smart Integration Reduces BOM, Cost, and PCB Size
- Two 16-Bit to 24-Bit Δ-Σ ADCs
  - 12 Channels, Assignable to Either ADC
  - Flexible Resolution and Sample Rates
    - 24-Bits at 0.4ksps, 16-Bits at 4ksps
- Four External Input, 10-Bit Δ-Σ ADC 7.8ksps
- 12-Bit DAC
- On-Die Temperature Sensor
- Digital Peripherals: Two SPI, Two I²C, up to Four UART, and up to 36 GPIOs
- Timers: Six 32-Bit Timers, Two Watchdog Timers, Two Pulse Trains, 1-Wire^® Master
Power Management Maximizes Battery Life
- 2.0V to 3.6V Supply Voltage Range
- Integrated SIMO Power Regulator
- Dynamic Voltage Scaling (DVS)
- 23.8μA/MHz ACTIVE Mode Current at 3.0V Coremark^®
- 4.4μA at 3.0V Retention Current for 32KB SRAM
- Selectable SRAM Retention in Low-Power Modes
Robust Security and Reliability
- TRNG
- Secure Nonvolatile Key Storage and AES-128/192/256
- Secure Boot to Protect IP/Firmware
- Wide, -40°C to +85°C Operating Temperature

Applications

Industrial Pressure, Temperature, Level, and Flow Sensors/Transmitters
Medical Pressure and Temperature Sensors

1-Wire is a registered trademark of Maxim Integrated Products, Inc.

Arm and Cortex are registered trademarks of Arm Limited.

Bluetooth is a registered trademark of Bluetooth SIG, Inc.

Cordio is a registered trademark of Sunrise Micro Devices, Inc.

Coremark is a registered trademark of EMBCC.

19-101233; Rev 0; 8/21

Parameters

Parametric specs for Microcontrollers

MCU Core	ARM Cortex-M4F
Internal Flash (KBytes)	512
Core Clock Speed (MHz) (max)	100
Data Processing	32-bit
Internal SRAM (KBytes)	128
Package/Pins	LGA HYBRID/88
Budgetary Price (See Notes)	8.09

See parametric specs for Microcontrollers

Key Features

Ultra-Low-Power Wireless Microcontroller
- Internal 100MHz Oscillator
- 512KB Flash and 128KB SRAM
  - Optional ECC on One 32KB SRAM Bank
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 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)
Smart Integration Reduces BOM, Cost, and PCB Size
- Two 16-Bit to 24-Bit Δ-Σ ADCs
  - 12 Channels, Assignable to Either ADC
  - Flexible Resolution and Sample Rates
    - 24-Bits at 0.4ksps, 16-Bits at 4ksps
- Four External Input, 10-Bit Δ-Σ ADC 7.8ksps
- 12-Bit DAC
- On-Die Temperature Sensor
- Digital Peripherals: Two SPI, Two I²C, up to Four UART, and up to 36 GPIOs
- Timers: Six 32-Bit Timers, Two Watchdog Timers, Two Pulse Trains, 1-Wire^® Master
Power Management Maximizes Battery Life
- 2.0V to 3.6V Supply Voltage Range
- Integrated SIMO Power Regulator
- Dynamic Voltage Scaling (DVS)
- 23.8μA/MHz ACTIVE Mode Current at 3.0V Coremark^®
- 4.4μA at 3.0V Retention Current for 32KB SRAM
- Selectable SRAM Retention in Low-Power Modes
Robust Security and Reliability
- TRNG
- Secure Nonvolatile Key Storage and AES-128/192/256
- Secure Boot to Protect IP/Firmware
- Wide, -40°C to +85°C Operating Temperature

Applications/Uses

Industrial Pressure, Temperature. Level and Flow Sensors/Transmitters
Medical Pressure and Temperature Sensors

Description

The MAX32680 microcontroller (MCU) is an advanced system-on-chip (SoC), featuring an Arm^® Cortex^®-M4F CPU for efficient computation of complex functions and algorithms that is qualified to operate at a temperature range of -40°C to +85°C. The SoC integrates power regulation and management with a single-inductor multiple-output (SIMO) buck regulator system. Onboard is the latest generation Bluetooth^® 5.2 Low Energy (LE) radio, supporting LE Audio, angle of arrival (AoA), and angle of departure (AoD) for direction finding, long-range (coded) modes, and high-throughput modes.

The device offers large onboard memory with 512KB flash and 128KB SRAM, with optional error correction coding (ECC) 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.

An analog front-end (AFE) provides two 12-channel delta-sigma (Δ-Σ) analog-to-digital converters (ADC) with features and specifications optimized for precision sensor measurement. Each Δ-Σ ADC can digitize external analog signals as well as system temperature. An optional programmable gain amplifier (PGA) with gains of 1x to 128x precedes each ADC. ADC outputs can be optionally converted on the fly from integer to single-precision floating-point format. A 12-bit digital-to-analog converter (DAC) is also included. The device also provides robust security features such as an advanced encryption standard (AES) engine, true random number generator (TRNG), and secure boot.

The device is available in an 88L LGA (10mm x 10mm, 0.4mm pitch) package.

Simplified Block Diagram

Technical Docs

	Data Sheet	Ultra-Low-Power Arm Cortex-M4F with Precision Analog Front-End and Bluetooth LE 5.2	Sep 21, 2021
	User Guide	MAX32680 User Guide

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

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INTERACTIVE Data Sheet

MAX32680

Ultra-Low-Power Arm Cortex-M4F with Precision Analog Front-End and Bluetooth LE 5.2

Product Details

Overview

Key Applications

Key Features

Applications/Uses

Simplified Block Diagram

Technical Docs

Design & Development

Support & Training

Overview

Parameters

Key Features

Applications/Uses

Description

Simplified Block Diagram

Technical Docs

Support & Training

MAX32680 Related Videos