STM32W108C8

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Pinout and pin description STM32W108C8 3 Pinout and pin description Figure 2. 48-pin VFQFPN pinout VDD_PADS PC1, ADC3, SWO, TRACEDATA0 VDD_MEM PC0, JRST, IRQDn, TRACEDATA1 PB7, ADC2, IRQC, TIM1C2 PB6, ADC1, IRQ6, TIM1C1 PB5, ADC0, TIM2CLK, TIM1MSK VDD_CORE VDD_PRE VDD_SYNTH OSCB OSCA VDD_24MHZ VDD_VCO RF_P RF_N VDD_RF RF_TX_ALT_P RF_TX_ALT_N VDD_IF BIAS_R VDD_PADSA PC5, TX_ACTIVE nRESET 48 47 46 45 44 43 42 41 40 39 38 37 1 36 2 35 3 34 4 33 5 32 6 31 7 30 8 29 9 28 10 27 11 26 Ground pad on back 12 25 13 14 15 16 17 18 19 20 21 22 23 24 PB0, VREF, IRQA, TRACECLK, TIM1CLK, TIM2MSK PC4, JTMS, SWDIO PC3, JTDI PC2, JTDO, SWO SWCLK, JTCK PB2, SC1MISO, SC1MOSI, SC1SCL, SC1RXD, TIM2C2 PB1, SC1MISO, SC1MOSI, SC1SDA, SC1TXD, TIM2C1 PA6, TIM1C3 VDD_PADS PA5, ADC5, PTI_DATA, nBOOTMODE, TRACEDATA3 PA4, ADC4, PTI_EN, TRACEDATA2 PA3, SC2nSSEL, TRACECLK, TIM2C2 PC6, OSC32B, nTX_ACTIVE PC7, OSC32A, OSC32_EXT VREG_OUT VDD_PADS VDD_CORE PA7, TIM1C4, REG_EN PB3, TIM2C3, SC1nCTS, SC1SCLK PB4, TIM2C4, SC1nRTS, SC1nSSEL PA0, TIM2C1, SC2MOSI PA1, TIM2C3, SC2SDA, SC2MISO VDD_PADS PA2, TIM2C4, SC2SCL, SC2SCLK Ai15261 Table 2. Pin descriptions Pin no. Signal Direction Description 1 VDD_24MHZ Power 1.8V high-frequency oscillator supply 2 VDD_VCO Power 1.8V VCO supply 3 RF_P I/O Differential (with RF_N) receiver input/transmitter output 4 RF_N I/O Differential (with RF_P) receiver input/transmitter output 5 VDD_RF Power 1.8V RF supply (LNA and PA) 6 RF_TX_ALT_P O Differential (with RF_TX_ALT_N) transmitter output (optional) 7 RF_TX_ALT_N O Differential (with RF_TX_ALT_P) transmitter output (optional) 8 VDD_IF Power 1.8V IF supply (mixers and filters) 15/215 Doc ID 018587 Rev 2
STM32W108C8 Pinout and pin description Table 2. Pin descriptions (continued) Pin no. Signal Direction Description 9 BIAS_R I Bias setting resistor 10 VDD_PADSA Power Analog pad supply (1.8V) PC5 I/O Digital I/O 11 TX_ACTIVE O Logic-level control for external Rx/Tx switch. The STM32W108C8 baseband controls TX_ACTIVE and drives it high (VDD_PADS) when in Tx mode. Select alternate output function with GPIO_PCCFGH[7:4] 12 nRESET I Active low chip reset (internal pull-up) 13 14 PC6 I/O Digital I/O OSC32B nTX_ACTIVE I/O PC7 I/O Digital I/O OSC32A O I/O 32.768 kHz crystal oscillator Select analog function with GPIO_PCCFGH[11:8] Inverted TX_ACTIVE signal (see PC5) Select alternate output function with GPIO_PCCFGH[11:8] 32.768 kHz crystal oscillator. Select analog function with GPIO_PCCFGH[15:12] OSC32_EXT I Digital 32 kHz clock input source 15 VREG_OUT Power Regulator output (1.8 V while awake, 0 V during deep sleep) 16 VDD_PADS Power Pads supply (2.1-3.6 V) 17 VDD_CORE Power 1.25 V digital core supply decoupling 18 PA7 TIM1_CH4 I/O High current O I Digital I/O. Disable REG_EN with GPIO_DBGCFG[4] Timer 1 Channel 4 output Enable timer output with TIM1_CCER Select alternate output function with GPIO_PACFGH[15:12] Disable REG_EN with GPIO_DBGCFG[4] Timer 1 Channel 4 input. (Cannot be remapped.) REG_EN O External regulator open drain output. (Enabled after reset.) Doc ID 018587 Rev 2 16/215
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STM32W108C8 Index of registers TIMx
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STM32W108C8

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