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22
36
33
P1.7
I/O
--
1
Standard 8051/
Push-Pull
General purpose
I/O
37
34
P1.6
I/O
--
1
Standard 8051/
Push-Pull
General purpose
I/O
38
35
P1.5
I/O
--
1
Standard 8051/
Push-Pull
General purpose
I/O
39
36
P1.4
I/O
--
1
Standard 8051/
Push-Pull
General purpose
I/O
40
37
P1.3
I/O
--
1
Standard 8051/
Push-Pull
General purpose
I/O
41
38
P1.2
I/O
--
1
Standard 8051/
Push-Pull
General purpose
I/O
42
39
P1.1
I/O
--
1
Standard 8051/
Push-Pull
General purpose
I/O
43
40
P1.0/ET2
I/O
--
1(P1.0)
Standard 8051/
Push-Pull
General purpose
I/O / External
Timer 2
44
41
VCC
--
--
--
--
Power
DC to DC--- AP1117D33L (U8/U10)
AP1117 is a low dropout positive adjustable or fixed-mode regulator with 1A output current capability. The product is
specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus
termination and low current 3.3V logic supply. AP1117 is also well suited for other applications such as VGA cards.
AP1117 is guaranteed to have lower than 1.4V dropout at full load current making it ideal to provide well-regulated
outputs of 1.25 to 5.0 with 6.4V to 18V input supply.
Summary of Contents for VS11422
Page 6: ...6 2 Specification ...
Page 13: ...13 Block Diagram ...
Page 19: ...19 Application Block Diagram ...
Page 31: ...31 For analog a Double click appear as follow Figs b Click ...
Page 33: ...33 6 Troubleshooting Flow Chart ...
Page 45: ...45 9 PCB Layout Diagrams 9 1 Main Board ...
Page 46: ...46 ...
Page 47: ...47 9 2 Power Board ...
Page 48: ...48 ...
Page 49: ...49 9 3 Key Board ...
Page 50: ...50 10 Exploded Diagram and Spare Parts List 10 1 EPL ...