PALCE20V8H-25PC/4 Lattice Semiconductor, PALCE20V8H-25PC/4 Datasheet - Page 19

• Manufacturer Part Number: PALCE20V8H-25PC/4
• Description: EE CMOS 24-Pin Universal Programmable Array Logic
• Manufacturer: Lattice Semiconductor

KEY TO SWITCHING WAVEFORMS
SWITCHING TEST CIRCUIT
t
t
t
PD
PZX
PXZ
, t
, t
, t
CO
Specification
EA
ER
Output
Z
L
Z
H
5 V
Closed
Z: Closed
L: Closed
S
H: Open
Z: Open
1
WAVEFORM
S 1
C L
50 pF
5 pF
C
PALCE20V8 Family
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
R 1
R 2
200
R
1
Commercial
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
H-5: 200
390
R
2
Measured Output Value
H
L
Z: V
Z: V
1.5 V
1.5 V
OL
OH
16491E-10
+ 0.5 V
– 0.5 V
19