mach435 Lattice Semiconductor Corp., mach435 Datasheet - Page 26

• Manufacturer Part Number: mach435
• Description: High-density Ee Cmos Programmable Logic
• Manufacturer: Lattice Semiconductor Corp.

KEY TO SWITCHING WAVEFORMS
SWITCHING TEST CIRCUIT
26
*Switching several outputs simultaneously should be avoided for accurate measurement.
Specification
t
PD
t
t
ER
, t
EA
CO
S
Closed
Z
Z
H
L
1
Z: Closed
H: Open
L: Closed
Z: Open
WAVEFORM
Output
MACH435-12/15/20, Q-20/25
35 pF
5 pF
C
5 V
L
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
S
R
R
1
1
2
300
Commercial
R
1
C
390
L
R
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
2
Test Point
KS000010-PAL
17469E-22
H
L
Output Value
Measured
Z: V
Z: V
1.5 V
1.5 V
OH
OL
+ 0.5 V
– 0.5 V