13 FLAG -112 128 $G_Vss
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14 SYMBOL voltage 16 144 R0
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15 WINDOW 123 0 0 Left 0
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16 WINDOW 39 0 0 Left 0
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18 SYMATTR Value PWL(0 -5 10n -5 11n 0 20n 0 21n 5 30n 5 31n -5 40n -5)
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19 SYMBOL dtlatch 176 48 R0
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21 SYMBOL tpower -112 96 R0
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23 TEXT 64 304 Left 0 !.tran 40n
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