74ac191 Fairchild Semiconductor, 74ac191 Datasheet - Page 4

• Manufacturer Part Number: 74ac191
• Description: 74ac191 Up/down Counter With Preset And Ripple Clock
• Manufacturer: Fairchild Semiconductor

www.fairchildsemi.com
V
V
V
V
I
(Note 5)
I
I
I
(Note 5)
IN
OLD
OHD
CC
Absolute Maximum Ratings
DC Electrical Characteristics
Symbol
Note 3: All outputs loaded; thresholds on input associated with output under test.
Note 4: Maximum test duration 2.0 ms, one output loaded at a time.
Note 5: I
IH
IL
OH
OL
Supply Voltage (V
DC Input Diode Current (I
DC Input Voltage (V
DC Output Diode Current (I
DC Output Voltage (V
DC Output Source
DC V
Storage Temperature (T
Junction Temperature (T
V
V
V
V
or Sink Current (I
per Output Pin (I
PDIP
I
I
O
O
CC
IN
V
V
and I
0.5V
Minimum HIGH Level
Input Voltage
Maximum LOW Level
Input Voltage
Minimum HIGH Level
Output Voltage
Maximum LOW Level
Output Voltage
Maximum Input
Leakage Current
Minimum Dynamic
Output Current (Note 4)
Maximum Quiescent
Supply Current
CC
or Ground Current
0.5V
CC
CC
0.5V
0.5V
@ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V V
CC
CC
Parameter
O
I
)
)
)
O
or I
)
STG
J
GND
)
IK
)
OK
)
)
)
0.5V to V
0.5V to V
65 C to 150 C
V
3.0
4.5
5.5
(V)
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
5.5
5.5
5.5
5.5
CC
0.5V to 7.0V
(Note 2)
CC
CC
20 mA
20 mA
20 mA
20 mA
50 mA
50 mA
140 C
0.002
0.001
0.001
Typ
2.25
2.75
2.25
2.75
2.99
4.49
5.49
0.5V
0.5V
1.5
1.5
T
A
4
25 C
Recommended Operating
Conditions
Note 2: Absolute maximum ratings are those values beyond which dam-
age to the device may occur. The databook specifications should be met,
without exception, to ensure that the system design is reliable over its
power supply, temperature, output/input loading variables. Fairchild does
not recommend operation of FACT
tions.
Supply Voltage (V
Input Voltage (V
Output Voltage (V
Operating Temperature (T
Minimum Input Edge Rate ( V/ t)
2.56
4.86
3.15
3.85
1.35
1.65
3.86
0.36
0.36
0.36
2.1
0.9
2.9
4.4
5.4
0.1
0.1
0.1
4.0
V
V
0.1
IN
CC
Guaranteed Limits
from 30% to 70% of V
@ 3.3V 4.5V, 5.5V
T
A
CC
.
I
40 C to 85 C
)
3.15
3.85
1.35
1.65
2.46
3.76
4.76
0.44
0.44
0.44
40.0
O
CC
2.1
0.9
2.9
4.4
5.4
0.1
0.1
0.1
75
1.0
75
)
)
A
)
CC
circuits outside databook specifica-
Units
mA
mA
V
V
V
V
V
V
A
A
V
or V
V
or V
I
V
I
I
I
I
V
I
I
I
V
V
V
V
or GND
OUT
OH
OH
OH
OUT
OL
OL
OL
OUT
OUT
IN
IN
I
OLD
OHD
IN
.
40 C to 85 C
CC
CC
V
12 mA
12 mA
24 mA
24 mA (Note 3)
Conditions
V
V
V
CC
2.0V to 6.0V
50 A
24 mA
24 mA (Note 3)
IL
IL
CC
1.65V Max
0.1V
0.1V
3.85V Min
125 mV/ns
50 A
, GND
0.1V
0.1V
0V to V
0V to V
or V
or V
IH
IH
CC
CC