
PI74ALVCH16646
16-Bit Bus Transceiver and Register
with 3-STATE Outputs
3
PS8102A 10/07/98
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REAL-TIME TRANSFER
BUS B TO A
xDIR xOE xCLKAB xCLKBA
xSAB xSBA
L
XXX
L
BUS
A
BUS
B
REAL-TIME TRANSFER
BUS A TO B
xDIR xOE xCLKAB xCLKBA
xSAB xSBA
HL
X
L
X
BUS
A
BUS
B
STORAGE FROM
A AND/OR B
xDIR xOE xCLKAB xCLKBA
xSAB xSBA
XX
↑
XX
X
XX
X
↑
XX
XH
↑↑
XX
BUS
A
BUS
B
TRANSFER STORES
DATA TO A AND/OR B
xDIR(1) xOE xCLKAB xCLKBA
xSAB xSBA
L
X
H or L
X
H
L
H or L
X
H
X
BUS
A
BUS
B
Note:
1. Cannot transfer data to A bus and B bus simultaneously.