Features
■ Includes ST state-of-the-art patented technology
■ Radio – 2.4 GHz – RF transceiver supporting Bluetooth® specification v5.0 and IEEE 802.15.4-2011 PHY and MAC – RX Sensitivity: -96 dBm (Bluetooth® Low Energy at 1 Mbps), -100 dBm (802.15.4) – Programmable output power up to +6 dBm with 1 dB steps – Integrated balun to reduce BOM – Support for 2 Mbps – Dedicated Arm® 32-bit Cortex® M0 + CPU for real-time Radio layer – Accurate RSSI to enable power control – Suitable for systems requiring compliance with radio frequency regulations ETSI EN 300 328, EN 300 440, FCC CFR47 Part 15 and ARIB STD-T66 – Support for external PA
■ Ultra-low-power platform – 1.71 V to 3.6 V power supply – – 40 °C to 85 / 105 °C temperature ranges – 13 nA shutdown mode – 600 nA Standby mode + RTC + 32 KB RAM – 2.1 µA Stop mode + RTC + 256 KB RAM – Active-mode MCU + RF (SMPS On) < 53 µA / MHz – RX: 3.8 mA – TX at 0 dBm: 5.5 mA
■ Core: Arm® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait-state execution from Flash memory, frequency up to 64 MHz, MPU, 80 DMIPS and DSP instructions
■ Supply and Reset management – High efficiency embedded SMPS step-down converter with intelligent bypass mode – Ultra-safe, low-power BOR (brownout reset) with five selectable thresholds – Ultra-low-power POR/PDR – Programmable voltage detector (PVD) – VBAT mode with RTC and backup registers
■ Clock sources – 32 MHz crystal oscillator with integrated trimming capacitors (Radio and CPU clock) – 32 kHz crystal oscillator for RTC (LSE) – Internal low-power 32 kHz (±5%) RC (LSI1) – Internal low-power 32 kHz (stability ±500 ppm) RC (LSI2) – Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25% accuracy) – High Speed internal 16 MHz factory trimmed RC (±1%) – 2x PLL for system clock, USB, SAI and ADC
■ Memories – Up to 1 MB Flash memory with sector protection (PCROP) against R/W operations, enabling authentic Bluetooth® Low Energy and 802.15.4 SW stack – Up to 256 KB SRAM, including 64 KB with hardware parity check – 20x32-bit Backup register – Boot loader supporting, USART, SPI, I2C and USB interfaces . UFQFPN48 VFQFPN68 WLCSP100 0.4 mm pitch 7 mm x 7 mm solder pad solder pad 8 mm x 8 mm