Datasheet

Truth tables ST1480AB - ST1480AC
4/21 DocID9101 Rev 4
2 Truth tables
Note: X= Don’t care; Z=High impedance
Note: X= Don’t care; Z=High impedance
Table 2. Truth table (driver)
Inputs Outputs
Mode
RE
DE DI B A
X H H L H Normal
X H L H L Normal
L L X Z Z Normal
H L X Z Z Shutdown
Table 3. Truth table (receiver)
Inputs Output
Mode
RE DE A-B RO
LL
≥ -0.015 V H Normal
LL
≤ -0.2 V L Normal
L L Inputs open H Normal
L L Inputs shorted H Normal
H L X Z Shutdown