LB1937T
Truth Table
Input
Output
IN1 IN2 IN3 IN4 IN5 IN6 IN7 IN8 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7 OUT8
L
L
off
off
L
H
L
H
H
L
H
L
H
H
off
H
(*) (*)
H
off
LL
off
off
LH
L
H
HL
H
L
HH
off
H
(*) (*)
H
off
L
L
off
off
L
H
L
H
H
L
H
L
H
H
off
H
(*) (*)
H
off
L
L
off
off
L
H
L
H
H
L
H
L
H
H
off
H
(*) (*)
H
off
L : low, H : high
*: The output logic mode when IN1/IN2 = H/H is determined by the immediately preceding IN1/IN2 mode.
The post-switching output modes will be as follows.
When switching from (2): (4)
When switching from (3): (4)'
When switching from (1): Undefined (Either (4) or (4)')
The modes when IN3/IN4 = H/H operate similarly as described below.
When switching from (6): (8)
When switching from (7): (8)'
When switching from (5): Undefined (Either (8) or (8)')
Output
mode
(1)
(2)
(3)
(4)
(4)′
(5)
(6)
(7)
(8)
(8)′
(11)
(12)
(13)
(14)
(14)′
(15)
(16)
(17)
(18)
(18)′
No.7231-5/7