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原理图(Pico_2CH_RS232_SchDoc).pdf

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Pico-2CH-RS232.SchDoc
11223344DDCCBBAA104C13104C15104C11104C14C1+1V+2C1-3C2+4C2-5V-6T2OUT7R2IN8R2OUT9T2IN10T1IN11R1OUT12R1IN13T1OUT14GND15VCC16U3Max3232T0OR0IR0OT0IC24150pFC16150pFC12104C23150pFC8150pFR1IT1OR1IT1OT1IR1ORS-232TXD1T1IR1ORXD1VSYS51RR1351RR14GND3K1K2D2PESD15VL2BTD3SMAJ15CAD1SMAJ15CAL1600R 100MHzL2600R 100MHz51RR1551RR16GND3K1K2D5PESD15VL2BTD6SMAJ15CAD4SMAJ15CAL3600R 100MHzL4600R 100MHzTXD0RXD0C26150pFC25150pFC22150pFC21150pFR0OT0IT0OR0IGP0GP1GP2GNDGP3GP4GP5GNDGNDGNDGP6GP7GP8GP9GP10GP11GP12GP13GP15GP16GP17GNDGP18GP19GP20GP21GNDGP22RUNVBUSGP26GP27GNDGP28GND3V3(OUT)ADC_VREFGPIO01GPIO12GND3GPIO24GPIO35GPIO46GPIO57GND8GPIO69GPIO710GPIO811GPIO912GND13GPIO1014GPIO1115GPIO1216GPIO1317GND18GPIO1419GPIO1520GPIO1621GPIO1722GND23GPIO1824GPIO1925GPIO2026GPIO2127GND28GPIO2229RUN30IO26/ADC031IO27/ADC132AGND33IO28/ADC234ADC_VREF353V3363V3_EN37GND38VSYS39VBUS40U1Pi pico (40P)3V3_ENGP14VSYSUSBRXD0TXD0TXD1RXD1GP0GP1GP4GP5aveshareWPico-2CH-RS232123H2123H3R31KR71KL_TXD1L_RXD1L_TXD2L_RXD2R81KR91K3V3(OUT)RXD0TXD0TXD1RXD1R41KL_PWR1GND123H4123H5R0T0R1T1R0T0T1R1GNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGND
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