Block Diagram

The block diagram of GR5526 is shown in the figure below.

• Bluetooth subsystem
  • A 2.4 GHz transceiver and a digital communication core that supports Bluetooth 5.3
• MCU subsystem
  • An ARM^® Cortex^®-M4F with all the required memories and peripherals
  • Security cores that can be used for application security and secure boot implementation
  • GPU + DC to enhance processing capabilities
• Power management unit (PMU) subsystem
  • All the required power management modules to supply sufficient power for both internal modules and external peripherals
  • Modules required for ultra-low-power operation are in standby mode. HFRC_192M, RNG_OSC, LFRC_32K, wakeup GPIOs (Wake up), low-power comparator (LP Comp.), and power state controller (Power Sequencer) are used to control the state of different modules