Features 
1) Built-In Biasing Resistors, R1 = R2 = 22kΩ 
2) Built-in bias resistors enable the configuration of 
an inverter circuit without connecting external 
input resistors (see inner circuit) . 
3) Only the on/off conditions need to be set 
for operation, making the circuit design easy. 
4) Complementary PNP Types: DTA124E series