Mostek 20-9-06

SCHEMATIC

CLOCK - 7219-8051-ALARM

12VOLT

Page-1/2

VCC

(9-12V)

2

1

+DC

3

4

-DC

-

+

D1

BRIDRECT

RECTANGLE

AC

AC

1

IN

2

GND

3

OUT

U1

7805

1

2

R1

2

3

1

J1

con_power

1

2

C1

+

-

1

2

C2

+

-

1

2

D2

LED

LED

BLUE

1

2

C3

+

-

0.01MFD

103

1K

GND

1000MFD 25V

POWER ON

GND

GND

1000 MFD 12V

GND

LED

GND

VCC

89s8252

Microcontroller

31

EA/VP

19

X1

18

X2

9

RESET

12

INT0_P3.2

13

INT1_P3.3

14

T0_P3.4

15

T1_P3.5

1

P1.0

2

P1.1

3

P1.2

4

P1.3

5

P1.4

6

P1.5

7

P1.6

8

P1.7

39

P0.0

38

P0.1

37

P0.2

36

P0.3

35

P0.4

34

P0.5

33

P0.6

32

P0.7

21

P2.0

22

P2.1

23

P2.2

24

P2.3

25

P2.4

26

P2.5

27

P2.6

28

P2.7

17

(P3.7)_RD

16

(P3..6)_WR

29

PSEN

30

ALE/P

11

(P3.1)_TXD

10

(P3.0)_RXD

40

VCC

20

GND

U3

8051

P00

P01

P10

P02

VCC

(BLACK)

P15

P11

P03

VCC

(BROWN)

P16

P12

P04

VCC

32.768 KHZ

(RED)

P17

P13

P05

(ORNG)

RESET

P14

P06

10K

1

2

R2

10K

22PF

(YELLOW-)

P15

P07

1

2

R3

1

2

C 4

+

-

MOSI

(GREEN-)

1

1

2

2

3

3

4

4

5

5

6

6

J2

CON6

P16

P36

MISO

GND

P17

P20

SCK

P21

P37

5

SDA

2

X2

6

SCL

1

X1

3

VBAT

8

VCC

4

GND

U4

7

SOWOUT

DS1307

RTC

1

2

Y1

CRYSTAL

P22

1

2

C 5

+

-

P33

P23

22PF

CONNECTOR

P32

P24

VCC

6-WAY

P25

GND

PROGRAMMING

P35

P26

P34

P27

GND

3V

1

2

B T 1

BATTERY

22PF

VCC

10K

1

2

R4

backup

P30

1

2

C6

+

-

6 MHZ

P31

GND

3

2

1

8

U5A

4050

HEX BUFFER

RESET

1

2

D3

LED

1

2

S1

SW_PUSH

1 0 M F D

P36

RESET

P37

RESET

1

2

Y2

CRYSTAL

ALARM ON/OFF

SNOOZE

LED

1HZ

P15

P16

22PF

1

2

C7

+

-

1

2

C8

+

-

GND

GND

10K

1

2

R5

P32

1

2

3

4

K1

sw_large_micro

P35

1

2

3

4

K2

sw_large_micro

5

4

1

8

U 5 B

4050

HEX BUFFER

7

6

1

8

U5C

4050

HEX BUFFER

GND

GND

VCC

VCC

1

2

3

4

5

6

7

8

9

RN1

r8-pack

10K

1

2

3

4

5

6

7

8

9

RN2

r8-pack

10K

GND

GND

SET MODE

ADJ +

ADJ -

1

2

D4

LED

1

2

D5

LED

P00

P01

P02

P03

P04

P05

P06

P07

P20

P21

P22

P23

P24

P25

P26

P27

P33

1

2

3

4

K3

sw_large_micro

P34

1

2

3

4

K4

sw_large_micro

P13

1

2

3

4

K5

sw_large_micro

LED

LED

GND

GND

GND

GND

GND

PM

ALARM SET

bright +

bright -

bright / dim