5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

4

12

5

B7

Vr+B5

B3

16

B6

2

3

B8

B4

7

8

9 14

11

6

13

B1

10 15

COMP

DAC0808

Vr-

1

B2

P3

Reset

Xtal1

P1

Xtal2

Triwiyanto <RevCode>

DAC0808 Circuit InterfaceA

1 1Friday, Apr i l 07, 2006

Tit le

Size Documen t Number R e v

Date: Sheet of

-12V

-12V

+5V

Voutput

12V

5V

V C C

V C C

V C C

V C C

1k

+

-

741

107

3

26

74

30p

to P0

12345678

12345678

P0

12345678

P2

12345678

R 1 55K

12345678

12 MHzC R Y S T A L

To Programmer

123456

1N4148

12

AT89S51

91819 29

30

31

40

12345678

2122232425262728

1011121314151617

3938373635343332

R S TX T A L 2X T A L 1 P S E N

A L E / P R O G

EA/VPP

V C C

P1.0/T2P1.1 /T2-EXP1.2P1.3P1.4 /SSP1.5 /MOSIP1.6 /MISOP1.7 /SCK

P2.0/A8P2.1/A9

P2.2 /A10P2.3 /A11P2.4 /A12P2.5 /A13P2.6 /A14P2.7 /A15

P3 .0 /RXDP3.1 /TXD

P3.2 / INTOP3.3/ INT1

P3.4 /TOP3.5/T1

P 3 . 6 / W RP3.7 /RD

P0.0 /AD0P0.1 /AD1P0.2 /AD2P0.3 /AD3P0.4 /AD4P0.5 /AD5P0.6 /AD6P0.7 /AD7

R F 5K

30p1k

R 1 45K

10uF

C 115pF

xtal2xtal1