National Semiconductor MM54HC73, MM74HC73 Service Manual
MM54HC73/MM74HC73
Dual J-K Flip-Flops with Clear
General Description
These J-K Flip-Flops utilize advanced silicon-gate CMOS
technology. They possess the high noise immunity and low
power dissipation of standard CMOS integrated circuits.
These devices can drive 10 LS-TTL loads.
These flip-flops are edge sensitive to the clock input and
change state on the negative going transition of the clock
pulse. Each one has independent, J, K, CLOCK, and
CLEAR inputs and Q and Q
of the clock and accomplished by a low level on the input.
The 54HC/74HC logic family is functionally as well as pinout compatible with the standard 54LS/74LS logic family.
outputs. CLEAR is independent
January 1988
All inputs are protected from damage due to static discharge by internal diode clamps to V
and ground.
CC
Features
Y
Typical propagation delay: 16 ns
Y
Wide operating voltage range: 2 –6V
Y
Low input current: 1 mA maximum
Y
Low quiescent current: 40 mA (74HC Series)
Y
High output drive: 10 LS-TTL loads
MM54HC73/MM74HC73 Dual J-K Flip-Flops with Clear
Connection and Logic Diagrams
Dual-In-Line Package
Top View
Order Number MM54HC73 or MM74HC73
TL/F/5072– 1
(1 of 2)
Truth Table
Inputs Outputs
CLR CLK J K Q Q
LXXXLH
H
v
H
v
H
v
H
v
H H X X Q0 Q
TL/F/5072– 2
L L Q0 Q0
HL H L
LH L H
H H TOGGLE
0
TL/F/5072– 3
C
1995 National Semiconductor Corporation RRD-B30M115/Printed in U. S. A.
TL/F/5072
Absolute Maximum Ratings (Notes1&2)
Operating Conditions
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage (V
CC
)
DC Input Voltage (VIN)
DC Output Voltage (V
OUT
)
Clamp Diode Current (IIK,IOK)
DC Output Current, per pin (I
OUT
)
DC VCCor GND Current, per pin (ICC)
Storage Temperature Range (T
STG
b
b
)
b
0.5 toa7.0V
1.5 to V
CC
0.5 to V
CC
g
g
b
g
65§Ctoa150§C
a
1.5V
a
0.5V
20 mA
25 mA
50 mA
Power Dissipation (PD)
(Note 3) 600 mW
Supply Voltage (V
)26V
CC
DC Input or Output Voltage 0 V
(V
IN,VOUT
)
Operating Temp. Range (T
MM74HC
MM54HC
Input Rise or Fall Times
e
2.0V(tr,tf) 1000 ns
V
CC
e
V
4.5V 500 ns
CC
e
V
6.0V 400 ns
CC
S.O. Package only 500 mW
Lead Temperature (T
(Soldering 10 seconds) 260
)
L
C
§
DC Electrical Characteristics (Note 4)
Symbol Parameter Conditions V
CC
A
e
T
25§C
Typ Guaranteed Limits
V
IH
Minimum High Level 2.0V 1.5 1.5 1.5 V
Input Voltage 4.5V 3.15 3.15 3.15 V
6.0V 4.2 4.2 4.2 V
V
IL
Maximum Low Level 2.0V 0.5 0.5 0.5 V
Input Voltage** 4.5V 1.35 1.35 1.35 V
6.0V 1.8 1.8 1.8 V
V
OH
Minimum High Level V
Output Voltage
e
VIHor V
l
I
IN
OUT
IL
s
20 mA 2.0V 2.0 1.9 1.9 1.9 V
l
4.5V 4.5 4.4 4.4 4.4 V
6.0V 6.0 5.9 5.9 5.9 V
e
V
VIHor V
IN
I
l
OUT
I
l
OUT
l
I
IN
OUT
e
V
OL
Maximum Low Level V
Output Voltage
IL
s
4.0 mA 4.5V 4.2 3.98 3.84 3.7 V
l
s
5.2 mA 6.0V 5.7 5.48 5.34 5.2 V
l
VIHor V
IL
s
20 mA 2.0V 0 0.1 0.1 0.1 V
l
4.5V 0 0.1 0.1 0.1 V
6.0V 0 0.1 0.1 0.1 V
e
V
VIHor V
IN
I
l
OUT
I
l
OUT
I
IN
I
CC
Note 1: Absolute Maximum Ratings are those values beyond which damage to the device may occur.
Note 2: Unless otherwise specified all voltages are referenced to ground.
Note 3: Power Dissipation temperature derating Ð plastic ‘‘N’’ package:
Note 4: For a power supply of 5V
with this supply. Worst case V
I
**V
Maximum Input V
Current
Maximum Quiescent V
Supply Current I
g
and VILoccur at V
) occur for CMOS at the higher voltage and so the 6.0V values should be used.
OZ
limits are currently tested at 20% of VCC. The above VILspecification (30% of VCC) will be implemented no later than Q1, CY’89.
IL
IH
e
IN
e
IN
OUT
10% the worst case output voltages (VOH, and VOL) occur for HC at 4.5V. Thus the 4.5V values should be used when designing
IL
s
4.0 mA 4.5V 0.2 0.26 0.33 0.4 V
l
s
5.2 mA 6.0V 0.2 0.26 0.33 0.4 V
l
VCCor GND 6.0V
g
0.1
VCCor GND 6.0V 4.0 40 80 mA
e
0 mA
b
12 mW/§C from 65§Cto85§C; ceramic ‘‘J’’ package:b12 mW/§C from 100§Cto125§C.
e
5.5V and 4.5V respectively. (The VIHvalue at 5.5V is 3.85V.) The worst case leakage current (IIN,ICC, and
CC
74HC 54HC
eb
T
40 to 85§CT
A
g
1.0
Min Max Units
)
A
b
b
40
55
eb
A
55 to 125§C
g
a
a
1.0 mA
CC
85
125
V
C
§
C
§
Units
2
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