Pico LiPo - Schematics

R14andthePCBcapacitorslowdowntheSETrisingslopeenough
comparedtoRESETthatthechipreliablydefaultstoonatpowerup
BM03B-SRSS-TB
5k6
2.2uF
100k
100nF
74LVC1G17GW,125
P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1
P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1 P$1
X2
1
1
2
2
3
3
MT
M1*2
R18
C18
1*2 3*2
VDD
8
SET
7
RESET
6
CLOCK
1
DATA
2
GND
4
Q
5
Q
3
R14
TP1
C20
1A
2
1Y
4
VCC
5
GND
3
U5
GND GND
GND GND
GND GND
GND GND
GP0 GP1 GP2 GP3
GP4_SDA
GP5_SCL
GP6 GP7 GP8 GP9
GP10
GP11
GP12 GP13 GP14 GP15
GP16 GP17 GP18 GP19 GP20 GP21 GP22 RUN GP26 GP27 GP28 ADC_VREF VBUS VSYS 3V3_EN
SWCLK
SWDIO
POWER_EN
POWER_EN
PIN1 PIN2 PIN3 PIN4 PIN5 PIN6 PIN7 PIN8 PIN9 PIN10 PIN11 PIN12 PIN13 PIN14 PIN15 PIN16 PIN17 PIN18 PIN19 PIN20
PIN21 PIN22 PIN23 PIN24 PIN25 PIN26 PIN27 PIN28 PIN29 PIN30 PIN31 PIN32 PIN33 PIN34 PIN35 PIN36 PIN37 PIN38 PIN39 PIN40
SW_PWR