CPC7583_1 Datasheet, PDF (13/21 Pages) Clare, Inc. – Line Card Access Switch

CPC7583
1.9.2 Truth Table for CPC7583xC and CPC7583xD
State IN_RINGING IN_TESTIN IN_TESTOUT Latch
T_SD
TEST_IN
Switches
Break
Switches
Ringing
Test
Switches
Ringing
Switches
TEST_OUT
Switches
Talk
0
0
0
Off
On
Off
Off
Off
TESTout
0
0
1
Off
Off
Off
Off
On
TESTin
0
1
0
On
Off
Off
Off
Off
Simultaneous
TESTin and
0
1
1
TESTout
On
Off
Off
Off
On
Ringing
1
0
0
Off
Off
Off
On
Off
Ringing
0
1 or
Generator
1
1
0
Test
Floating ^{1 Off}
Off
On
Off
Off
Simultaneous
TESTout and
Ringing
1
1
1
Generator
Test
Off
Off
On
Off
On
Latched
X
X
X
1
Unchanged Unchanged Unchanged Unchanged Unchanged
1
0
1
0
Off
Off
Off
Off
Off
All Off
X
X
X
X
0²
Off
Off
Off
Off
Off
1_{If TSD is tied high, thermal shutdown is disabled. If TSD is left floating, the thermal shutdown mechanism functions normally.}
2_{Forcing TSD to ground overrides the logic input pins and forces an all off state.}
R06
www.clare.com
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