MAX31334
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MAX31334

Ultra-Low-Power Real Time Clock with Integrated Power Switch

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Industry's only RTC with high-side power switch integrated

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $1.15
Features
  • Ultra-Low-Power Real Time Clock
    • 70nA Timekeeping Current
    • 1.1V to 5.5V Timekeeping Voltage Range
    • Automatic Switchover to Backup Supply on Power Failure
    • Trickle Charger for External Supercapacitor
  • Integrated Power Switch with State Machine Increases System Battery Life
    • Up to 500mA Continuous Current
    • Ultra-Low 57mΩ On-Resistance
    • Wakeup on Periodic Interrupt—Countdown Timer (100ms to 1hr) and Alarms (1s Resolution)
    • Wakeup on External Interrupt, Like Pushbutton
  • Saves Board Space
    • No External Capacitors Required for Crystal
    • 1.5mm x 2mm 12-WLP
    • 3mm x 3mm 12-TDFN
  • Value-Add Features for Ease of Use
    • Works with Many 32.768kHz Crystals (no CL limitation)
    • Two Time-of-Day Alarms
    • Event Detection and Timestamps
    • 1/128 Second Register
    • 32 bytes of User RAM
Additional Details
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The MAX31334 ultra-low-power, real-time clock (RTC) is a time-keeping device that consumes only 70nA timekeeping current. It features an integrated high-side power pass switch that enables ultra-low-power idle modes on duty-cycled applications by disconnecting power to other devices on the system. The power switch on/off durations can be controlled by periodic interrupt sources such as countdown timer (programmable from 100ms to 1hr) and alarms (1s resolution). The power switch can also be controlled by an external interrupt (from a pushbutton, for example) on the DIN pin. The MAX31334 supports a wide range of crystals with any loading (CL) spec which broadens the pool of usable crystals for this device. This device is accessed through an I2C serial interface. An integrated power-on reset function ensures deterministic default register status upon power-up.

The device also features a backup supply pin (VBAT) and automatically switches over to this supply when the main supply (VCC) drops below the programmed threshold voltage. Other features include two time-of-day alarms, interrupt outputs, a programmable square-wave output, event detection input with timestamping (32-byte timestamp registers double as RAM storage), a serial bus timeout mechanism.

The digital Schmitt trigger input (DIN) can also be used to record timestamps and/or assert an interrupt on a falling/rising edge of the DIN signal. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. A 1/128 seconds register is available for a sub-second timestamp resolution. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in 24-hour/12-hour format.

The MAX31334 is available in lead (Pb)-free/RoHS compliant, 12-bump, 1.5mm x 2mm WLP with 0.5mm pitch, as well as a 12-pin 3mm x 3mm TDFN package.

The device supports the -40°C to +85°C extended temperature range.

APPLICATIONS

  • Electronic Shelf Label
  • Ultra-low-power IoT Modules
  • Medical Wearables
  • Temperature Loggers
  • Asset Tracking
  • Battery-Powered Devices
Part Models 2
1ku List Price Starting From $1.15

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX31334EWC+
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MAX31334EWC+T
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 4

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MAX31334SHLD

Evaluation Kit for the MAX31334

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MAX31334SHLD

Evaluation Kit for the MAX31334

Evaluation Kit for the MAX31334

Features and Benefits

  • Easy Evaluation of the MAX31334
  • +1.1V to +5.5V Single-Supply Operation
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX31334 shield evaluation kit (EV kit) is a fully assembled and tested PCB to evaluate the MAX31334, an ultra-low power, low-cost, real-time clock (RTC) with integrated power switch, I2C interface, and power management. The shield EV kit operates from a single supply (either from USB or external power supply) and the onboard crystal provides a 32.768kHz clock signal. This device is accessed through an I2C serial interface provided by a MAX32625PICO board connected to a PC by a USB port.

The MAX31334 shield EV kit provides the hardware and software graphic user interface (GUI) necessary to evaluate the MAX31334. The kit includes an installed MAX31334. It connects to the PC through a MAX32625 PICO board and a micro-USB cable.

APPLICATIONS

  • Electronic Shelf Label
  • Ultra-low-power IoT Modules
  • Medical Wearables
  • Temperature Loggers
  • Asset Tracking
  • Battery-powered devices

Resources

Software

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ZIP

3.52 M

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AD-MAX32LRWISE-SL

Long Range Wireless Radio Development Kit Based on MAX32670 Ultralow Power Arm Cortex-M4 Microcontroller and LR1110 RF Transceiver

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AD-MAX32LRWISE-SL

Long Range Wireless Radio Development Kit Based on MAX32670 Ultralow Power Arm Cortex-M4 Microcontroller and LR1110 RF Transceiver

Long Range Wireless Radio Development Kit Based on MAX32670 Ultralow Power Arm Cortex-M4 Microcontroller and LR1110 RF Transceiver

Features and Benefits

  • Provides the user with a platform to evaluate the features and performance of the evaluation kit​
  • Allows the user to prototype and test their IoT applications before moving on to full-scale development​
  • Provides tools for analyzing the power consumption of the device, helping the user to optimize their applications for energy efficiency​
  • Includes development tools, libraries, and documentation to assist user in writing and debugging their code​
  • Helps the user analyze and study the different modulation schemes, data rates, and other parameters relevant to IoT communication​
  • Comes with user-friendly interfaces, documentation, and software tools that simplify the integration process which can save developers time and effort when incorporating the LR1110 into their IoT devices​

Product Detail

The AD-MAX32LRWISE-SL development kit is a tool intended for designing solutions based on low-power, long range proprietary radio communication technique. This platform features the LR1110, an RF transceiver based on spread spectrum modulation techniques derived from chirp spread spectrum (CSS) technology, and supports a frequency range from 800 MHz to 960 MHz. This solution is also based on the MAX32670 ultralow power microcontroller based on ARM Cortex-M4 processor.​

The platform comes in an Arduino Uno form factor, with two PMOD connectors, and an ESP32 Dev Kit connector for easy-to-connect sensors and signal conditioning add-on modules. Complete with working software and hardware, as well as software examples, this kit makes it easier for customers to prototype and create connected systems and solutions for IoT applications.​

The base platform is accompanied with various Analog Devices add-on hardware but is also compatible with 3rd party hardware. A free programming and debugging tool called Maxim SDK is also provided by Analog Devices.​

The AD-MAX32LRWISE-SL development kit is complete with 1 base board, 1 sensor node, gateway setup essentials, and other accessories. However, customers also have the option to avail of the components individually as intended for their application development.​

  • Base Board:
    • MAX32670-LR-ARDZ Base board (can be purchased separately)​
  • Component Sensor Node:
    • EV-CATTLETAG-ARDZ Smart Livestock Tracking and Health Monitoring Sensor (can be purchased separately)​
  • Gateway Essentials and Other Accessories (can be purchased separately)​
    • RAK5146 PiHAT Kit
    • Raspberry Pi 4 Model B
    • MAX32625PICO rapid development Board
    • RPi4 Power Supply
    • MicroSD Card
    • LAN Cable

    APPLICATIONS

    • Battery-Powered Medical Devices
    • Industrial Sensors
    • Optical Communication Modules
    • Secure Radio Modem Controller
    • Smart Sensor Controller
    • System Housekeeping Controller
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MAX32670-LR-ARDZ

Long Range Wireless Radio Development Platform for Asset Management Applications Based on MAX32670 Ultralow Power Arm Cortex-M4 Microcontroller and LR1110 RF Transceiver

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MAX32670-LR-ARDZ

Long Range Wireless Radio Development Platform for Asset Management Applications Based on MAX32670 Ultralow Power Arm Cortex-M4 Microcontroller and LR1110 RF Transceiver

Long Range Wireless Radio Development Platform for Asset Management Applications Based on MAX32670 Ultralow Power Arm Cortex-M4 Microcontroller and LR1110 RF Transceiver

Features and Benefits

  • MCU:
    • Arm Cortex-M4 Core with FPU up to 100 MHz
    • 384 kB flash memory with error correction
    • 160 kB SRAM (128 kB with ECC enabled), optionally preserved in lowest power modes
    • Compatible RTC resolution for protocol timeout management
  • Security:
    • Available Secure Boot
    • Support cryptographic algorithms, including AES-128/192/256
  • Power
    • Ultralow power real time clock with integrated power switch
      • With 300 nA power consumption during sleep mode
  • Multi-Purpose Radio Front-End Targeting Geolocation Purposes
    • Global Navigation Satellite System (GNSS) (GPS/BeiDou) low-power scanning
    • 802.11b/g/n Wi-Fi ultralow power passive scanning
  • Long Range Radio
    • Support FSK, GFSK, MSK, GMSK, and Long Range FHSS modulations
    • Power Output: +15 dBm transmit peak power
    • Programmable bit rate up to 62.5 kbps and 300 kbps
    • Support sub-GHz ISM bands from 800 MHz to 960 MHz
      • High sensitivity: down to -148 dBm

Product Detail

The MAX32670-LR-ARDZ base board features the MAX32670 high-reliability, ultralow power microcontroller based on Arm Cortex-M4 processor, and the LR1110 long range RF transceiver module. The integrated RF transceiver supports a frequency range from 800 MHz up to 960 MHz, making it suitable for high-performance flexible platforms that wirelessly transmit encrypted data at long-range; enabling a wide range of IoT applications using ADI sensing solutions.

This solution also utilizes Semtech’s Long Range Cloud™ Geolocation capabilities to significantly reduce power consumption by determining asset location in a cloud-based solver. Due to its low power consumption, this module is ideal for devices running on small-sized batteries The on-board MAX32670 Arm Cortex®-M4 32-bit microcontroller provides the platform with complete capability to run entire RF stacks and user applications.

APPLICATIONS

  • Asset location
  • Asset recovery
  • Asset traceability
  • Inventory management
  • Asset loss and theft prevention
reference details image

MAX32670-SX-ARDZ

Long Range Wireless Radio Development Platform Based on MAX32670 Ultralow Power Arm Cortex-M4 Microcontroller and SX1261 RF Transceiver

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MAX32670-SX-ARDZ

Long Range Wireless Radio Development Platform Based on MAX32670 Ultralow Power Arm Cortex-M4 Microcontroller and SX1261 RF Transceiver

Long Range Wireless Radio Development Platform Based on MAX32670 Ultralow Power Arm Cortex-M4 Microcontroller and SX1261 RF Transceiver

Features and Benefits

  • MCU:
    • Arm Cortex-M4 Core with FPU up to 100 MHz
    • 384 kB flash memory with error correction
    • 160 kB SRAM (128 kB with ECC enabled), optionally preserved in lowest power modes
    • Compatible RTC resolution for protocol timeout management
  • Security:
    • Available secure boot
    • Support cryptographic algorithms, including AES-128/192/256
  • Power
    • Ultralow power real time clock with integrated power switch
      • With 300 nA power consumption during sleep mode
  • Long Range Radio
    • Support FSK, GFSK, MSK, GMSK, and Long Range FHSS modulations
    • Power Output: +15 dBm transmit peak power
    • Programmable bit rate up to 62.5 kbps and 300 kbps
    • Support sub-GHz ISM bands from 800 MHz to 960 MHz
    • High sensitivity: down to -148 dBm

Product Detail

The MAX32670-SX-ARDZ base board features the MAX32670 high-reliability, ultralow power microcontroller based on Arm Cortex®-M4 processor, and the SX1261 long range RF transceiver. The integrated RF transceiver supports a frequency range from 800 MHz up to 960 MHz, making it suitable for high-performance flexible platforms that wirelessly transmit encrypted data at long range; enabling a wide range of IoT applications using ADI sensing solutions.

Due to its low power consumption, this module is ideal for devices running on small-sized batteries. The on-board MAX32670 Arm Cortex®-M4 32-bit microcontroller provides the platform with complete capability to run entire RF stacks and user applications.

APPLICATIONS

  • Smart meters
  • Supply chain and logistics
  • Building automation
  • Agricultural sensors
  • Smart cities
  • Retail store sensors
  • Asset tracking
  • Streetlights
  • Parking sensors
  • Environmental sensors
  • Healthcare
  • Safety and security sensors
  • Remote control applications
Tools & Simulations

Tools & Simulations 1

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