The modules are 48MHz 32-bit solutions with 256KBytes of flash, 32KBytes of SRAM, and a 12-bit SAR analogue-to-digital converter (ADC).
They feature two integrated crystals, up to 19 general-purpose inputs and outputs (GPIOs), and a programmable architecture that supports a number of peripheral functions (such as ADC, timers, counters, and PWM) and serial communication protocols (including I2C, UART, and SPI).
The modules include a royalty-free Bluetooth low energy stack compatible with Bluetooth 4.2 and are available in two certified versions (CYBLE-212006-01 and CYBLE-202007-01) and an uncertified version (CYBLE-202013-11).
The CYBLE-212006-01 includes an integrated trace antenna, while the CYBLE-202007-01 supports an external antenna via a u-FL connector.
The uncertified CYBLE-202013-11 supports an external antenna through a RF solder pad output and omits the RF shield.