Logic Families
181
LS–TTL
or
LP–TTL
CMOS
+5V
(a)
CMOS
Buffer
CMOS
+5V
(c)
TTL
O/P
+15V
I/P
O/P
I/P
Standard TTL
or S–TTL
CMOS
+5V
CMOS
Buffer
(b)
O/P
I/P
Figure 5.62 CMOS-to-TTL interface.