EP41FLASH_RSTN40n.c.39VSS(RF)38RF_IO37VSS(RF)36VDD(RADIO)35XTAL_32K_N34XTAL_32K_P33VDD(PMU)32FB31VSS(DCDC)30LX29VBAT28RSTN27TRST26n.c.25PIO20/ACP24n.c.23n.c.22PIO17/ADC321VDDE20FLASH_CSN19PIO15/ADC118PIO14/ADC017PIO13/SWDIO16PIO12/SWCLK15PIO1114PIO1013PIO9/RXD012PIO8/TXD011PIO710PIO69PIO5/ISP_ENTRY8PIO47PIO36PIO25PIO14PIO03XTAL_N2XTAL_P1