资料介绍
OV Demo Board原理圖A
B
C
D
E
3.3V Y1 C1 3.3V C3 2.2U + C4 6 14 18 24 34 39 50 12 11 3.3V 22P-0603 24 MHz C2 22P-0603
5V
U1 XC3302PR VSS VIN VOUT
3.3V
5V
3.3V
3.3V
R1 0-0603
100K-0603
R2
4
R3
R4 100K-0603
100K-0603
1 2 3
4
C8 0.1U-0603
0.1U-0603
+ C5 10U
C7 .1U-0603
+ C6 10U
VCC1 VCC2 VCC3 VCC4 VCC5 VCC6 VCC7
XTALOUT
XTALIN
R5 10K-0603 3.3V
5V J1 VCC DD+ GND SHELL USB-B
3
10 49 16 15
AVCC RESET# DMINUS DPLUS
1 2 3 4 L1 3.3V BEAD-0805 FCLK L2 BEAD-0805
U2
20 5 51
PA0/INT0# PA1/INT1# PA2/SLOE PA3/WU2 PA4/FIFOADR0 PA5/FIFOADR1 PA6/PKTEND PA7/FLAGD PB0/FD0 PB1/FD1 PB2/FD2 PB3/FD3 PB4/FD4 PB5/FD5 PB6/FD6 PB7/FD7 PD0/FD8 PD1/FD9 PD2/FD10 PD3/FD11 PD4/FD12 PD5/FD13 PD6/FD14 PD7/FD15 RESERVED
40 41 42 43 44 45 46 47 25 26 27 28 29 30 31 32 52 53 54 55 56 1 2 3
VSYNC PA1 PA3
10K-0