Features
Bluetooth Subsystem
■ Complies with Bluetooth core specification version 5.0 with LE 2-Mbps support
■ Supports Basic Rate (BR) and Bluetooth Low Energy (BLE)
■ Supports Adaptive Frequency Hopping (AFH)
■ Programmable TX power up to 12 dBm
■ Rx sensitivity -94.5 dBm (BLE)
■ Ultra-low-power radio
❐ RX current 8 mA
❐ TX current 18 mA @ 12 dBm

Coexistence Support
■ Support for Global Coexistence Interface for easy coexistence implementation with select Cypress Wi-Fi devices MCU Subsystem
■ 96-MHz ARM Cortex-M4 microcontroller unit MCU with floating point unit (FPU)
■ Supports serial wire debug (SWD)
■ Runs Bluetooth stack and application Memory Subsystem
■ 384 KB RAM
■ 2 MB ROM that stores Bluetooth stack and drives and offloads flash for user applications Audio features and interfaces
■ 1x I2S with master and slave modes
■ 1x PCM
■ PDM
■ Analog front end for analog microphone
Clocks
■ On-chip 32 kHz oscillator
■ On-chip 128 kHz oscillator
■ 32 kHz crystal oscillator
■ 24 MHz crystal oscillator
■ 32-bit real time clock (RTC)
Peripherals and communication
■ 1x MIPI DMI-C interface
■ 6x 16-bit PWMs
■ Programmable key-scan matrix interface, up to 8x20 keyscanning matrix
■ Quadrature decoder
■ Watchdog timer
■ 1x peripheral UART, 1x UART for programming and HCI
■ 1x SPI (master or salve mode)
■ 1x I2C master
■ One ADC (10-ENoB for DC measurement and 12-ENOB for
Audio measurement)
■ Hardware security engine
General Purpose Input Output (GPIO)
■ 24 general purpose I/Os
■ 2 dedicated pins for analog microphone
■ Support 1.7 V to 3.63 V operation
■ Four GPIOs support 16 mA and 8 mA source at 3.3 V and 1.8
V respectively
Operating voltage and low-power support
■ Wide operating voltage range - 1.625 V to 3.63V
■ 4 power modes to implement ultra-low power application -
managed by real time operating system
■ 1 uA current in HID-Off mode
Packages
■ 7 mm x7 mm 60-pin quad flat no-lead (QFN)
Software Support
■ WICED Studio