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8x4 Video Crosspoint Switches with Buffers
DIN
CS
ONE
SHOT
D
Q
SCLK
MAX458
MAX459
Q
D
DOUT
IN
CLK
SWITCH
REGISTER
0
IN0 IN7
•••
ANALOG INPUTS
0
8-1 MUX
7
16-BIT
SHIFT
REGISTER
•••
0
SWITCH
8-1 MUX
REGISTER
1
7
•••
0
SWITCH
8-1 MUX
REGISTER
2
7
0
SWITCH
REGISTER
OUT
3
7
L = TRANSPARENT
H = LATCHED
WR = CE = UPDATE = HIGH
•••
8-1 MUX
OUT0
OUT1
OUT2
OUT3
Figure 5. Serial-Mode Logic Block Diagram
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