
Functional Description
The 93L01 decoder accepts four active HIGH BCD inputs
and provides ten mutually exclusive active LOW outputs, as
shown by logic symbol or diagram. The active LOW outputs
facilitate addressing other MSI units with active LOW input
enables. The logic design of the 93L01 ensures that all out-
puts are HIGH when binary codes greater than nine are
applied to the inputs. The most significant input A3 produc-
es a useful inhibit function when the 93L01 is used as a
1-of-8 decoder.
Truth Table
Inputs
Outputs
A0
A1
A2
A3
O0
O1
O2
O3
O4
O5
O6
O7
O8
O9
L
H
L
H
L
L
H
H
L
L
L
L
L
L
L
L
L
H
H
H
H
L
H
H
H
H
L
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
L
H
L
L
H
H
H
H
H
H
L
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
L
H
H
H
H
L
H
H
H
H
L
H
H
H
H
H
H
H
H
L
H
L
H
L
L
H
H
L
L
L
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
H
H
H
H
L
H
H
L
H
L
H
L
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
e
HIGH Voltage Level
L
e
LOW Voltage Level
Logic Diagram
TL/F/9583–3
3