Heart Rate Monitor


Block Diagram

Heart Rate Monitor

Heart Rate Monitor BD

Supported Devices

Power Management

Battery Chargers

LED Controllers

Wireless Connectivity

Bluetooth Low Energy

Analog and Mixed Signal

Real-Time Clocks


General Purpose I/O (GPIO)


CPU and Memory

  • Up to 48MHz Cortex-M4
  • Up to 640 kB flash, up to 152 kB RAM, 128 kB ROM
  • NFC NTAG Option with EEPROM
  • Quad-SPI for execute in place or data storage in NVM

RF performance/power consumption

  • -97 dBm RX sensitivity
  • Up to 11dBm TX power
  • RX 4.3mA, DC/DC on at 3V
  • TX 7.4mA @ 0dBm, 20.5mA @ 10dBm
  • BLE 5.0 with 2Mbps and up to 8 simultaneous connections

Digital and Analog Interfaces

  • UART/SPI/I2C up to 2
  • ISO7816 Interface for Secure Access Module
  • 8 ch 12-bit ADC
  • 1 Analog comparator
  • Digital Microphone Interface and Audio Event Detection

Clocks and timers

  • 32 MHz and 32.768 kHz crystals
  • Low and High Frequency Internal Clock sources
  • 4 x general purpose timer
  • 32K sleep timer
  • Watchdog timer
  • RTC with calibration


Quick reference to our documentation types.

5 documents


What do you need help with?