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-172-74243
GAB IXC 1A 2A 3A 4A GND
8 bit 9(H'
74LS621, 74LS623 fr h b
GAB GBA ft
H H A â B
L H iff
H L A OFF B
L L B «- A
' \flit PNP °tz.T<)-> li 400m V
Quad 3-State Bus Transceivers