Sample Test Circuit for the LM555 Timer: Astable Mode
**********
* Sample Test Circuit for the LM555 Timer: Astable Mode
* The LM555 timer model is designed for low frequency 
* applications, up to 100Hz. 
.INCLUDE ../modelos/LM555.sub
.TRAN 1MS 100MS 0 25US UIC
*.OPTIONS LIMPTS=5001 ITL5=0 RELTOL=.0001
.PRINT TRAN V(1) V(5) V(6) V(4) 
V2 2 0 PULSE 0 5
R3 2 3 1000
R4 3 4 5000
C3 4 0 .001M
X1 4 1 5 6 4 3 2 LM555 
.END