OE
DQ
CLK
Q
a. Registered active Low
OE
DQ
CLK
Q
b. Registered active high
c. Combinatorial I/O active low
VCC
d. Combinatorial I/O active high
VCC
Note 1
Note 1
e. Combinatorial output active low
f. Combinatorial output active high
Note 2
Notes:
1. Feedback is not available on pins 18 (21) and 19 (23) in
the combinatorial output mode.
Adjacent I/O Pin
2. This macrocell configuration is not available on pins
18 (21) and 19 (23).
g. Dedicated input
Figure 2. Macrocell Configurations
16491E
6
PALCE20V8 Family