KEY TO SWITCHING WAVEFORMS
WAVEFORM
INPUTS
OUTPUTS
Must be
Steady
Will be
Steady
May
Change
from H to L
Will be
Changing
from H to L
May
Change
from L to H
Will be
Changing
from L to H
Don’t Care,
Any Change
Permitted
Changing,
State
Unknown
Does Not
Apply
Center
Line is High-
Impedance
“Off” State
16564E-013
SWITCHING TEST CIRCUIT
5 V
S
1
R
1
Output
Test Point
R
C
2
L
16564-014
Commercial
Measured Output
Specification
t , t
S
C
R
R
2
Value
1
L
1
Closed
1.5 V
PD CO
All except H-5/7:
Z → H: Open
Z → L: Closed
H → Z: Open
L → Z: Closed
50 pF
5 pF
390 Ω
t
1.5 V
EA
300 Ω
H-5/7:
H → Z: V - 0.5 V
OH
t
ER
300 Ω
L →Z: V + 0.5 V
OL
PALCE22V10 and PALCE22V10Z Families
25