CPC75282 Datasheet, PDF (11/19 Pages) Clare, Inc. – Line Card Access Switch

INTEGRATED CIRCUITS DIVISION
1.11 Truth Tables
PRELIMINARY
CPC75282
1.11.1 Operating States: CFG=0
State
P3
P2
P1
OFF_x¹
Break
Switches
Ringing
Switches
Test
Switches
Idle/Talk
0
0
0
1
ON
OFF
OFF
Test
Ringing
0
0
1
1
OFF
OFF
ON
0
1
0
1
OFF
ON
OFF
Test/Monitor
0
1
1
1
ON
OFF
ON
Idle/Talk
1
0
0
1
ON
OFF
OFF
Test/Monitor
1
0
1
1
ON
OFF
ON
Ringing
1
1
0
1
OFF
ON
OFF
Test Ringing
1
1
1
1
OFF
ON
ON
All-Off
x
x
x
0²
OFF
OFF
OFF
1 _{P1, P2, and P3 data input values are directed to a given channel when the respective LATCHx logic signal is set to “0.”}
OFF_x is a per-channel control.
2 _{A “0” on OFFx resets the CPC75282, the device will remain in the All-Off state until OFFx is returned to “1” and the next LATCHx signal is}
applied.
3 _{CFG is fixed at DGND; if CFG switches states when VDD is applied, the change will be recognized by a given channel after a LATCH low}
transition is applied to that channel.
1.11.2 Operating States: CFG=1
State
P3
P2
P1
OFF_x¹
Break
Switches
Ringing
Switches
Test
Switches
Idle/Talk
0
0
0
1
ON
OFF
OFF
Test
0
0
1
1
OFF
OFF
ON
Ringing
All-Off
0
1
0
1
OFF
ON
OFF
0
1
1
1
OFF
OFF
OFF
Idle/Talk
1
0
0
1
ON
OFF
OFF
Test/Monitor
1
0
1
1
ON
OFF
ON
Ringing
1
1
0
1
OFF
ON
OFF
Test Ringing
1
1
1
1
OFF
ON
ON
All-Off
x
x
x
0²
OFF
OFF
OFF
1 _{P1, P2, and P3 data input values are directed to a given channel when the respective LATCHx logic signal is set to “0.”}
OFF_x is a per-channel control.
2 _{A “0” on OFFx resets the CPC75282, the device will remain in the All-Off state until OFFx is returned to “1” and the next LATCHx signal is}
applied.
3 _{CFG is fixed at vDD; if CFG switches states when VDD is applied, the change will be recognized by a given channel after a LATCH low}
transition is applied to that channel.
R00E
PRELIMINARY
11