3/4/2013 10:42:01 AM f=0.50 E:\PC Oscilloscope\PC Oscilloscope.sch (Sheet: 1/1)

PIC18F2550_28DIP

MCP6S91

MCP6S91

LF353N

LF353N

LF353N

LF353N

ICL7660CPA

1M82

K

33K

220K

150K

1K

1M

82K

33K

220K

150K

1K1.5K

4.7K

4.7k

2.7p

2.7p

0.022uf

10uf

47uf

PN61729-S

4Mhz

LF353N

LF353N

82K

82K

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/AN3/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

IC23

2

5 6

1

84

7

IC33

2

5 6

1

84

7

IC4A

2

31

IC4B

6

57

84

IC5A

2

31

IC5B

6

57

84

IC6LV6

CAP-4

NC1

VOUT 5

GND 3

V+ 8

OSC 7CAP+2

R1R

2

R3

R4 R5

R6

R7

R8

R9

R10 R11

R12

R13

VR1

P$1

P$2

P$3

VR2

P$1

P$2

P$3

C1

C2

C7

C9

C10

X11234

Q1C

3

C4

C5

C6

C8

IC7A

2

31

IC7B

6

57

84R

14R

15

GND

GND

GND

GND

GND

GND GND

VCC

VCC

VCC

VCC

VCC

VCC

-5

US

B