PIC18F2550_28DIP

100nf

47uf

100nf

47nf

27pf 27pf

680u

H

1N4148

RE

D

2N3904

20MHz

2N3904

2N3906

2N3906

4747

10k

4.7k

47047

0

10k

4.7k

2.7k

100k

10k

10k

+5V

GND

GND+5V

GNDGND GND

GND GND

+5V

+5V

GND GND

GND

GND

+5V

YE

LL

OW

GR

EE

N

+5V

47uf

+5V

10k +5V

2.7k470

10k10

k

GND GND

IC1

RC7/RX/DT/SDO 18

VSS8

VDD 20RB0/AN12/INT0/LFT0/SDI/SDA 21

RB1/AN10/INT1/SCK/SCL 22RB2/AN8/INT2/VMO 23

RB3/AN9/CCP2/VPO 24RB4/AN11/KBI0/CSSPP 25

RB5/KBI1/PGM 26RB6/KBI2/PGC 27RB7/BKI3/PGD 28MCLR/VPP/RE31

RA0/AN02

RA1/AN13

RA2/AN2/VREF-/CVREF4

RA3/AN4/VREF+5

RA4/T0CKI/CIOUT/RCV6

RA5/AN4/SS/HLVDIN/C2OUT7

VSS 19OSC1/CLKI9

RA6/OSC2/CLKO10

RC0/TIOSO/T13CKI11

RC1/T1OSI/ICCP2/UOE12

RC2/CCP1/P1A13

VUSB14 RC4/D-/VM 15RC5/D+/VP 16RC6/TX/CK 17

C1

C6

C7

C5

C3 C4

L1

D1

LE

D2

Q1

XT1

Q2

Q3

Q4

R2R3

R1

R4

R5R

6

R7

R8

R9

R10

R11

R14

1234

123456789

1011121314151617181920 21

22232425262728293031323334353637383940

LE

D3

JP1

1 2

JP2

1 2

JP3

1 2

JP4

1 2

LE

D1

C2

JP5

1 2

JP6

1 2

R15

R16R17

R13R

12

+

+