MM54HC190 National Semiconductor, MM54HC190 Datasheet - Page 3

• Manufacturer Part Number: MM54HC190
• Description: (MM54HC190 / MM54HC191) Up/Down Counters with Mode Control
• Manufacturer: National Semiconductor

Symbol
AC Electrical Characteristics
AC Electrical Characteristics
Symbol
Parameter
Parameter
(Input)
From
(Output)
To
T
V
A
CC
e
e
25 C V
2 0V to 6 0V C
V
CC
CC
3
e
Typ
T
(Input)
5 0V t
From
A
e
L
25 C
e
r
e
50 pF t
t
f
e
6 ns C
T
r
A
e
e b
t
f
e
(Output)
L
Guaranteed Limits
74HC
e
6 ns (unless otherwise specified)
40 to 85 C
To
15 pF (unless otherwise specified)
T
A
eb
Typ
54HC
55 to 125 C
Units
Units