Datasheet

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  
SCAS583J − NOVEMBER 1996 − REVISED FEBRUARY 2005
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic diagram
See Note B
See Note B
See Note A
B1−B8
Y9−Y13
PERI LOGIC OUT
C14−C17
HOST LOGIC IN
V
CC
CABLE
DIR
HD
A1−A8
A9−A13
PERI LOGIC IN
A14−A17
HOST LOGIC OUT
42
48
1
19
24
30
25
NOTES: A. The PMOS transistor prevents backdriving current from the signal pins to V
CC
CABLE when V
CC
CABLE is open or at GND.
B. The PMOS transistors prevent backdriving current from the signal pins to V
CC
CABLE when V
CC
CABLE is open or at GND. The
PMOS transistor is turned off when the associated driver is in the low state.