© Semiconductor Components Industries, LLC, 2007
February, 2007 Rev. 0
1Publication Order Number:
74HC74/D
74HC74
Dual D Flip−Flop with Set
and Reset
HighPerformance SiliconGate CMOS
The 74HC74 is identical in pinout to the LS74. The device inputs are
compatible with standard CMOS outputs; with pullup resistors, they
are compatible with LSTTL outputs.
This device consists of two D flipflops with individual Set, Reset,
and Clock inputs. Information at a Dinput is transferred to the
corresponding Q output on the next positive going edge of the clock
input. Both Q and Q outputs are available from each flipflop. The Set
and Reset inputs are asynchronous.
Features
Output Drive Capability: 10 LSTTL Loads
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 mA
High Noise Immunity Characteristic of CMOS Devices
In Compliance with the JEDEC Standard No. 7A Requirements
ESD Performance: HBM > 2000 V; Machine Model > 200 V
Chip Complexity: 128 FETs or 32 Equivalent Gates
PbFree Packages are Available
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MARKING
DIAGRAMS
HC74 = Device Code
A = Assembly Location
L, WL = Wafer Lot
Y = Year
W, WW = Work Week
G or G= PbFree Package
TSSOP14
DT SUFFIX
CASE 948G
14
1
SOIC14
D SUFFIX
CASE 751A
14
1
HC74G
AWLYWW
1
14
HC
74
ALYW G
G
1
14
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
ORDERING INFORMATION
(Note: Microdot may be in either location)
74HC74
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2
RESET 1
DATA 1
CLOCK 1
SET 1
RESET 2
DATA 2
CLOCK 2
SET 2
1
2
3
4
13
12
11
10
5
6
9
8
Q1
Q1
Q2
Q2
PIN 14 = VCC
PIN 7 = GND
FUNCTION TABLE
Inputs Outputs
Set Reset Clock Data Q Q
LH XX HL
HL XX LH
L L X X H* H*
HH H HL
HH L LH
H H L X No Change
H H H X No Change
H H X No Change
*Both outputs will remain high as long as Set and Reset are low, but the output
states are unpredictable if Set and Reset go high simultaneously.
LOGIC DIAGRAMPIN ASSIGNMENT
SET 1
CLOCK 1
DATA 1
RESET 1
11
12
13
14
8
9
105
4
3
2
1
7
6
SET 2
CLOCK 2
DATA 2
RESET 2
VCC
Q2
Q2
GND
Q1
Q1
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
MAXIMUM RATINGS
Symbol Parameter Value Unit
VCC DC Supply Voltage (Referenced to GND) – 0.5 to + 7.0 V
Vin DC Input Voltage (Referenced to GND) – 0.5 to VCC + 0.5 V
Vout DC Output Voltage (Referenced to GND) – 0.5 to VCC + 0.5 V
Iin DC Input Current, per Pin ±20 mA
Iout DC Output Current, per Pin ±25 mA
ICC DC Supply Current, VCC and GND Pins ±50 mA
PDPower Dissipation in Still Air, SOIC Package†
TSSOP Package†
500
450
mW
Tstg Storage Temperature – 65 to + 150 _C
TLLead Temperature, 1 mm from Case for 10 Seconds
(SOIC or TSSOP Package) 260
300
_C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress
ratings only. Functional operation above the Recommended Operating Conditions is not implied.
Extended exposure to stresses above the Recommended Operating Conditions may affect device
reliability.
Derating SOIC Package: – 7 mW/_C from 65_ to 125_C
TSSOP Package: 6.1 mW/_C from 65_ to 125_C
For high frequency or heavy load considerations, see Chapter 2 of the ON Semiconductor HighSpeed CMOS Data Book (DL129/D).
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
VCC DC Supply Voltage (Referenced to GND) 2.0 6.0 V
Vin, Vout DC Input Voltage, Output Voltage (Referenced to GND) 0 VCC V
TAOperating Temperature, All Package Types – 55 + 125 _C
tr, tfInput Rise and Fall Time VCC = 2.0 V
(Figures 1, 2, 3) VCC = 3.0 V
VCC = 4.5 V
VCC = 6.0 V
0
0
0
0
1000
600
500
400
ns
This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this highimpedance cir-
cuit. For proper operation, Vin and
Vout should be constrained to the
range GND v (Vin or Vout) v VCC.
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.
74HC74
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DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)
Symbol Parameter Test Conditions
VCC
(V)
Guaranteed Limit
Unit
– 55 to
25_Cv 85_Cv 125_C
VIH Minimum HighLevel Input
Voltage
Vout = 0.1 V or VCC – 0.1 V
|Iout| v 20 mA
2.0
3.0
4.5
6.0
1.5
2.1
3.15
4.2
1.5
2.1
3.15
4.2
1.5
2.1
3.15
4.2
V
VIL Maximum LowLevel Input
Voltage
Vout = 0.1 V or VCC – 0.1 V
|Iout| v 20 mA
2.0
3.0
4.5
6.0
0.5
0.9
1.35
1.8
0.5
0.9
1.35
1.8
0.5
0.9
1.35
1.8
V
VOH Minimum HighLevel Output
Voltage
Vin = VIH or VIL
|Iout| v 20 mA
2.0
4.5
6.0
1.9
4.4
5.9
1.9
4.4
5.9
1.9
4.4
5.9
V
Vin = VIH or VIL |Iout| v 2.4 mA
|Iout| v 4.0 mA
|Iout| v 5.2 mA
3.0
4.5
6.0
2.48
3.98
5.48
2.34
3.84
5.34
2.2
3.7
5.2
VOL Maximum LowLevel Output
Voltage
Vin = VIH or VIL
|Iout| v 20 mA
2.0
4.5
6.0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
V
Vin = VIH or VIL |Iout| v 2.4 mA
|Iout| v 4.0 mA
|Iout| v 5.2 mA
3.0
4.5
6.0
0.26
0.26
0.26
0.33
0.33
0.33
0.4
0.4
0.4
Iin Maximum Input Leakage Current Vin = VCC or GND 6.0 ±0.1 ±1.0 ±1.0 mA
ICC Maximum Quiescent Supply
Current (per Package)
Vin = VCC or GND
Iout = 0 mA
6.0 2.0 20 80 mA
NOTE: Information on typical parametric values can be found in Chapter 2 of the ON Semiconductor HighSpeed CMOS Data Book
(DL129/D).
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6.0 ns)
Symbol Parameter
VCC
(V)
Guaranteed Limit
Unit
– 55 to
25_Cv 85_Cv 125_C
fmax Maximum Clock Frequency (50% Duty Cycle)
(Figures 1 and 4)
2.0
3.0
4.5
6.0
6.0
15
30
35
4.8
10
24
28
4.0
8.0
20
24
MHz
tPLH,
tPHL
Maximum Propagation Delay, Clock to Q or Q
(Figures 1 and 4)
2.0
3.0
4.5
6.0
100
75
20
17
125
90
25
21
150
120
30
26
ns
tPLH,
tPHL
Maximum Propagation Delay, Set or Reset to Q or Q
(Figures 2 and 4)
2.0
3.0
4.5
6.0
105
80
21
18
130
95
26
22
160
130
32
27
ns
tTLH,
tTHL
Maximum Output Transition Time, Any Output
(Figures 1 and 4)
2.0
3.0
4.5
6.0
75
30
15
13
95
40
19
16
110
55
22
19
ns
Cin Maximum Input Capacitance 10 10 10 pF
NOTE: For propagation delays with loads other than 50 pF, and information on typical parametric values, see Chapter 2 of the ON
Semiconductor HighSpeed CMOS Data Book (DL129/D).
CPD Power Dissipation Capacitance (Per FlipFlop)*
Typical @ 25°C, VCC = 5.0 V
pF
32
* Used to determine the noload dynamic power consumption: PD = CPD VCC2f + ICC VCC. For load considerations, see Chapter 2 of the
ON Semiconductor HighSpeed CMOS Data Book (DL129/D).
74HC74
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4
TIMING REQUIREMENTS (Input tr = tf = 6.0 ns)
Symbol Parameter
VCC
(V)
Guaranteed Limit
Unit
– 55 to
25_Cv 85_Cv 125_C
tsu Minimum Setup Time, Data to Clock
(Figure 3)
2.0
3.0
4.5
6.0
80
35
16
14
100
45
20
17
120
55
24
20
ns
thMinimum Hold Time, Clock to Data
(Figure 3)
2.0
3.0
4.5
6.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
ns
trec Minimum Recovery Time, Set or Reset Inactive to Clock
(Figure 2)
2.0
3.0
4.5
6.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
ns
twMinimum Pulse Width, Clock
(Figure 1)
2.0
3.0
4.5
6.0
60
25
12
10
75
30
15
13
90
40
18
15
ns
twMinimum Pulse Width, Set or Reset
(Figure 2)
2.0
3.0
4.5
6.0
60
25
12
10
75
30
15
13
90
40
18
15
ns
tr, tfMaximum Input Rise and Fall Times
(Figures 1, 2, 3)
2.0
3.0
4.5
6.0
1000
800
500
400
1000
800
500
400
1000
800
500
400
ns
ORDERING INFORMATION
Device Package Shipping
74HC74D SOIC14
55 Units / Rail
74HC74DG SOIC14
(PbFree)
74HC74DR2 SOIC14
2500 / Tape & Reel
74HC74DR2G SOIC14
(PbFree)
74HC74DTR2 TSSOP14*
74HC74DTR2G TSSOP14*
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently PbFree.
74HC74
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5
SWITCHING WAVEFORMS
Figure 1.
50%
50%
50%
50%
VCC
VCC
GND
GND
SET OR
RESET
Q OR Q
Q OR Q
CLOCK
tPLH
tPHL
50%
DATA
CLOCK
VCC
VCC
GND
Figure 2.
VALID
GND
tsu th
trec
tw
SET
DATA
RESET
4, 10
2, 12
1, 13
CLOCK
3, 11
5, 9
6, 8
Q
Q
*Includes all probe and jig capacitance
CL*
TEST POINT
DEVICE
UNDER
TEST
OUTPUT
Figure 3.
1/fmax
CLOCK
Q or Q
tftr
VCC
GND
90%
50%
10%
90%
50%
10%
tPLH tPHL
tTLH tTHL
tw
50%
Figure 4.
Figure 5. EXPANDED LOGIC DIAGRAM
74HC74
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6
PACKAGE DIMENSIONS
SOIC14
CASE 751A03
ISSUE H
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.127
(0.005) TOTAL IN EXCESS OF THE D
DIMENSION AT MAXIMUM MATERIAL
CONDITION.
A
B
G
P7 PL
14 8
7
1
M
0.25 (0.010) B M
S
B
M
0.25 (0.010) A S
T
T
F
RX 45
SEATING
PLANE D14 PL K
C
J
M
_DIM MIN MAX MIN MAX
INCHESMILLIMETERS
A8.55 8.75 0.337 0.344
B3.80 4.00 0.150 0.157
C1.35 1.75 0.054 0.068
D0.35 0.49 0.014 0.019
F0.40 1.25 0.016 0.049
G1.27 BSC 0.050 BSC
J0.19 0.25 0.008 0.009
K0.10 0.25 0.004 0.009
M0 7 0 7
P5.80 6.20 0.228 0.244
R0.25 0.50 0.010 0.019
__ __
7.04
14X
0.58
14X
1.52
1.27
DIMENSIONS: MILLIMETERS
1
PITCH
SOLDERING FOOTPRINT*
7X
*For additional information on our PbFree strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
74HC74
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7
PACKAGE DIMENSIONS
TSSOP14
CASE 948G01
ISSUE B
DIM MIN MAX MIN MAX
INCHESMILLIMETERS
A4.90 5.10 0.193 0.200
B4.30 4.50 0.169 0.177
C−−− 1.20 −−− 0.047
D0.05 0.15 0.002 0.006
F0.50 0.75 0.020 0.030
G0.65 BSC 0.026 BSC
H0.50 0.60 0.020 0.024
J0.09 0.20 0.004 0.008
J1 0.09 0.16 0.004 0.006
K0.19 0.30 0.007 0.012
K1 0.19 0.25 0.007 0.010
L6.40 BSC 0.252 BSC
M0 8 0 8
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A DOES NOT INCLUDE MOLD
FLASH, PROTRUSIONS OR GATE BURRS.
MOLD FLASH OR GATE BURRS SHALL NOT
EXCEED 0.15 (0.006) PER SIDE.
4. DIMENSION B DOES NOT INCLUDE
INTERLEAD FLASH OR PROTRUSION.
INTERLEAD FLASH OR PROTRUSION SHALL
NOT EXCEED 0.25 (0.010) PER SIDE.
5. DIMENSION K DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.08
(0.003) TOTAL IN EXCESS OF THE K
DIMENSION AT MAXIMUM MATERIAL
CONDITION.
6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
7. DIMENSION A AND B ARE TO BE
DETERMINED AT DATUM PLANE W.
____
S
U0.15 (0.006) T
2X L/2
S
U
M
0.10 (0.004) V S
T
LU
SEATING
PLANE
0.10 (0.004)
T
ÇÇÇ
ÇÇÇ
ÇÇÇ
SECTION NN
DETAIL E
JJ1
K
K1
ÉÉÉ
ÉÉÉ
DETAIL E
F
M
W
0.25 (0.010)
8
14
7
1
PIN 1
IDENT.
H
G
A
D
C
B
S
U0.15 (0.006) T
V
14X REFK
N
N
7.06
14X
0.36 14X
1.26
0.65
DIMENSIONS: MILLIMETERS
1
PITCH
SOLDERING FOOTPRINT*
*For additional information on our PbFree strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
74HC74
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8
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
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and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
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PUBLICATION ORDERING INFORMATION
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USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81357733850
74HC74/D
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Phone: 3036752175 or 8003443860 Toll Free USA/Canada
Fax: 3036752176 or 8003443867 Toll Free USA/Canada
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