MACH120-18JI データシートの表示（PDF） - Lattice Semiconductor
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MACH120-18JI Datasheet PDF : 20 Pages
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KEY TO SWITCHING WAVEFORMS
WAVEFORM
INPUTS
Must be
Steady
May
Change
from H to L
May
Change
from L to H
Don’t Care,
Any Change
Permitted
Does Not
Apply
SWITCHING TEST CIRCUIT
5V
OUTPUTS
Will be
Steady
Will be
Changing
from H to L
Will be
Changing
from L to H
Changing,
State
Unknown
Center
Line is High-
Impedance
“Off” State
KS000010-PAL
S1
R1
Output
Test Point
R2
CL
Specification
tPD, tCO
tEA
tER
S1
Closed
Z → H: Open
Z → L: Closed
H → Z: Open
L → Z: Closed
CL
35 pF
5 pF
Commercial
R1
R2
300 Ω
390 Ω
*Switching several outputs simultaneously should be avoided for accurate measurement.
14129J-14
Measured Output Value
1.5 V
H → Z: VOH – 0.5 V
L → Z: VOL + 0.5 V
18
MACH120-12/15
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