PDF《蜂鸣电路》

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2 1 D C B A Title Number Revision Size A4 Date: 31-Jan-2013 Sheet of File: D:\HYF\13年燃气热水器\SCH10E59\SCH10E59.

Ddb Drawn By:

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11 12 CN1 CON12 L1 22uH L2 22uH E1 10uF25V C6 104Z C7 104Z POW 6*6*4.3 UP 6*6*4.3 DN 6*6*4.3 E A B C D S L H E DQ6 KRC119 EE

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5 CN2 烧录电路 C2

104 VCC VCC DBG DBG SL VCC C8

103 X0/PF0

1 X1/PF1

2 VSS

3 X1A/PG2

4 X0A/PG1

5 VCC

6 C

7 RST/PF2

8 TO10/P62

9 TO11/P63

10 P64/EC1

11 P00/AN00

12 P01/AN01

13 P02/INT02/AN02/SCK

14 P03/INT03/AN03/SOT

15 P04/INT04/AN04/SIN/HCLK1/EC0

16 P05/INT05/AN05/TO00/HCLK2

17 P06/INT06/TO01

18 P07/INT07

19 P12/EC0/DBG

20 U2 MB95F564K R17

220 C9 10uF/25V R14 10K RST RST R13 10K CPU电路 UVCC DBG GND RST 5V E2 16V/10uF C3

104 VCC D L H A B C SS SEG7 EE SH BZ SLK DAT D1 D4148

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11 LED1 LED-M R1 330R R2 330R R3 330R R4 330R R5 330R R6 330R R7 330R R12 220R A

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2 Q0

3 Q1

4 Q2

5 Q3

6 Q4

10 Q5

11 Q6

12 Q7

13 CLK

8 MR

9 Vcc

14 GND

7 U1 74HC164 R8 100K C4

102 R9 100K C5

102 DAT CLK C1

104 VCC VCC SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 DQ4 KRC119S DQ3 KRA102S DQ2 KRA102S DQ1 KRA102S SH SL SS VCC SEG7 POWER 5-G LP LP BZ1 R11 10R R10 10K BZ 蜂鸣电路 VCC DQ5 KRC119S R15

103 R19 6.2K R18 2.7K R16

103 VCC VCC VCC +5V S