Product Summary

The STM32W108CBU64 is a fully integrated System-on-Chip that integrates a 2.4 GHz, IEEE 802.15.4-compliant transceiver, 32-bit ARM® Cortex-M3 microprocessor, Flash and RAM memory, and peripherals of use to designers of ZigBee-based systems.The STM32W108CBU64 offers a number of advanced power management features that enable long battery life. A high-frequency internal RC oscillator allows the processor core to begin code execution quickly upon waking. Various deep sleep modes are available with less than 1 μA power consumption while retaining RAM contents. To support user-defined applications of the STM32W108CBU64, on-chip peripherals include UART, SPI, TWI, ADC and general-purpose timers, as well as up to 24 GPIOs. Additionally, an integrated voltage regulator, power-on-reset circuit, and sleep timer are available.

Parametrics

STM32W108CBU64 absolute maximum ratings: (1)Regulator input voltage (VDD_PADS): -0.3 +3.6 V; (2)Analog, Memory and Core voltage (VDD_24MHZ, VDD_VCO,; (3)VDD_RF, VDD_IF, VDD_PADSA, VDD_MEM, VDD_PRE, VDD_SYNTH, VDD_CORE): -0.3 +2.0 V; (4)Voltage on RF_P,N; RF_TX_ALT_P,N -0.3 +3.6 V RF Input Power (for max level for correct packet reception see RX signal into a lossless balun:+15 dBm; (5)Voltage on any GPIO (PA[7:0], PB[7:0], PC[7:0]), SWCLK, NRST, VREG_OUT:-0.3, VDD_PADS +0.3 V; (6)Voltage on BIAS_R, OSCA, OSCB: -0.3, VDD_PADSA +0.3 V.

Features

STM32W108CBU64 features: (1)Complete system-on-chip: 32-bit ARMR Cortex.-M3 processor; 2.4 GHz IEEE 802.15.4 transceiver & lower MAC; 128-Kbyte Flash, 8-Kbyte RAM memory; AES128 encryption accelerator; Flexible ADC, SPI/UART/TWI serial communications, and general-purpose timers; 24 highly configurable GPIOs with Schmitt trigger inputs; (2)Industry-leading ARMR Cortex-M3 processor: Leading 32-bit processing performance; Highly efficient ThumbR-2 instruction set; (3)Operation at 6, 12 or 24 MHz; Flexible nested vectored interrupt controller; (4)Low power consumption, advanced management: Receive current (w/ CPU): 27 mA; Transmit current (w/ CPU, +3 dBm TX): 31 mA; Low deep sleep current, with retained RAM and GPIO: 400 nA/800nA with/without sleep timer; Low-frequency internal RC oscillator for low-power sleep timing High-frequency internal RC oscillator for fast (100 μs) processor start-up from sleep; (5)Exceptional RF performance: Normal mode link budget up to 102 dB; configurable up to 107 dB;-99 dBm normal RX sensitivity; configurable to -100 dBm (1% PER, 20 byte packet); +3 dB normal mode output power; configurable up to +7 dBm; (6)Robust WiFi and Bluetooth coexistence.

Diagrams

STM32W108CBU64 pin connection

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