KeyboardScanning/3x4_4pin.sch

v 20130925 2
N 46300 41900 46300 48000 4
N 43500 43700 43500 48000 4
N 44300 47200 48300 47200 4
N 44300 46200 50000 46200 4
N 44300 45200 50000 45200 4
N 44300 44200 49100 44200 4
N 44900 43000 44900 48000 4
B 46800 48400 1200 400 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
T 47100 48500 9 10 1 0 0 0 1
buttons
T 41700 44700 9 24 1 0 0 0 7
1  2  3

4  5  6

7  8  9

*  0  #
C 43300 48000 1 270 0 switch-diag.sym
{
T 43700 47900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 43300 47700 5 10 0 1 270 0 1
clock=clk
T 43900 47800 5 10 1 1 0 0 1
refdes=S1
}
C 44700 48000 1 270 0 switch-diag.sym
{
T 45100 47900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 44700 47700 5 10 0 1 270 0 1
clock=clk
T 45300 47800 5 10 1 1 0 0 1
netname=S2
}
C 46100 48000 1 270 0 switch-diag.sym
{
T 46500 47900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 46100 47700 5 10 0 1 270 0 1
clock=clk
T 46700 47800 5 10 1 1 0 0 1
netname=S3
}
C 43300 47000 1 270 0 switch-diag.sym
{
T 43700 46900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 43300 46700 5 10 0 1 270 0 1
clock=clk
T 43900 46800 5 10 1 1 0 0 1
refdes=S4
}
C 44700 47000 1 270 0 switch-diag.sym
{
T 45100 46900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 44700 46700 5 10 0 1 270 0 1
clock=clk
T 45300 46800 5 10 1 1 0 0 1
netname=S5
}
C 46100 47000 1 270 0 switch-diag.sym
{
T 46500 46900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 46100 46700 5 10 0 1 270 0 1
clock=clk
T 46700 46800 5 10 1 1 0 0 1
netname=S6
}
C 43300 46000 1 270 0 switch-diag.sym
{
T 43700 45900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 43300 45700 5 10 0 1 270 0 1
clock=clk
T 43900 45800 5 10 1 1 0 0 1
refdes=S7
}
C 44700 46000 1 270 0 switch-diag.sym
{
T 45100 45900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 44700 45700 5 10 0 1 270 0 1
clock=clk
T 45300 45800 5 10 1 1 0 0 1
netname=S8
}
C 46100 46000 1 270 0 switch-diag.sym
{
T 46500 45900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 46100 45700 5 10 0 1 270 0 1
clock=clk
T 46700 45800 5 10 1 1 0 0 1
netname=S9
}
C 43300 45000 1 270 0 switch-diag.sym
{
T 43700 44900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 43300 44700 5 10 0 1 270 0 1
clock=clk
T 43900 44800 5 10 1 1 0 0 1
refdes=S*
}
C 44700 45000 1 270 0 switch-diag.sym
{
T 45100 44900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 44700 44700 5 10 0 1 270 0 1
clock=clk
T 45300 44800 5 10 1 1 0 0 1
netname=S0
}
C 46100 45000 1 270 0 switch-diag.sym
{
T 46500 44900 5 10 0 0 270 0 1
device=SWITCAP-switch
T 46100 44700 5 10 0 1 270 0 1
clock=clk
T 46700 44800 5 10 1 1 0 0 1
netname=S#
}
L 51200 48000 50000 48000 3 0 0 0 -1 -1
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L 50000 43000 49900 42900 3 0 0 0 -1 -1
T 50200 42700 9 10 1 0 0 0 22
uP



D0_out




D1_out






D3_in



D4_in

N 43500 43700 50000 43700 4
N 50000 43000 50000 43100 4
N 44900 43000 50000 43000 4
N 46300 41900 48300 41900 4
C 48600 44200 1 90 0 diode-1.sym
{
T 48000 44600 5 10 0 0 90 0 1
device=DIODE
}
C 49300 44200 1 90 0 diode-1.sym
{
T 48700 44600 5 10 0 0 90 0 1
device=DIODE
}
C 47400 42800 1 270 0 diode-1.sym
{
T 48000 42400 5 10 0 0 270 0 1
device=DIODE
}
C 48100 42800 1 270 0 diode-1.sym
{
T 48700 42400 5 10 0 0 270 0 1
device=DIODE
}
N 48300 42800 48300 43700 4
N 47600 43000 47600 42800 4
N 48400 45200 48400 45100 4
N 49100 45100 49100 46200 4
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L 50000 43700 49900 43600 3 0 0 0 -1 -1
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C 48100 46900 1 0 0 ground.sym