©1988 Fairchild Semiconductor Corporation www.fairchildsemi.com
74AC74, 74ACT74 Rev. 1.6.1 7
74AC74, 74ACT74 — Dual D-Type Positive Edge-Triggered Flip-Flop
AC Electrical Characteristics for AC
Note:
5. Voltage range 3.3 is 3.3V ± 0.3V. Voltage range 5.0 is 5.0V ± 0.5V.
AC Operating Requirements for AC
Note:
6. Voltage range 3.3 is 3.3V ± 0.3V. Voltage range 5.0 is 5.0V ± 0.5V.
Symbol Parameter V
CC
(V)
(6)
T
A
= +25°C,
C
L
= 50pF
T
A
= –40°C to +85°C,
C
L
= 50pF
UnitsMin. Typ. Max. Min. Max.
f
MAX
Maximum Clock Frequency 3.3 100 125 95 MHz
5.0 140 160 125
t
PLH
Propagation Delay,
C
Dn
or S
Dn
to Q
n
or Q
n
3.3 3.5 8.0 12.0 2.5 13.0 ns
5.0 2.5 6.0 9.0 2.0 10.0
t
PHL
Propagation Delay,
C
Dn
or S
Dn
to Q
n
or Q
n
3.3 4.0 10.5 12.0 3.5 13.5 ns
5.0 3.0 8.0 9.5 2.5 10.5
t
PLH
Propagation Delay,
CP
n
to Q
n
or Q
n
3.3 4.5 8.0 13.5 4.0 16.0 ns
5.0 3.5 6.0 10.0 3.0 10.5
t
PHL
Propagation Delay,
CP
n
to Q
n
or Q
n
3.3 3.5 8.0 14.0 3.5 14.5 ns
5.0 2.5 6.0 10.0 2.5 10.5
Symbol Parameter V
CC
(V)
(7)
T
A
= +25°C,
C
L
= 50pF
T
A
= –40°C to +85°C,
C
L
= 50 pF
UnitsTyp. Guaranteed Minimum
t
S
Set-up Time, HIGH or LOW,
D
n
to CP
n
3.3 1.5 4.0 4.5 ns
5.0 1.0 3.0 3.0
t
H
Hold Time, HIGH or LOW,
D
n
to CP
n
3.3 –2.0 0.5 0.5 ns
5.0 –1.5 0.5 0.5
t
W
CP
n
or C
Dn
or S
Dn
Pulse Width 3.3 3.0 5.5 7.0 ns
5.0 2.5 4.5 5.0
t
rec
Recovery Time, C
Dn
or S
Dn
to CP 3.3 –2.5 0 0 ns
5.0 –2.0 0 0
©1988 Fairchild Semiconductor Corporation www.fairchildsemi.com
74AC74, 74ACT74 Rev. 1.6.1 8
74AC74, 74ACT74 — Dual D-Type Positive Edge-Triggered Flip-Flop
AC Electrical Characteristics for ACT
Note:
7. Voltage range 5.0 is 5.0V ± 0.5V.
AC Operating Requirements for ACT
Note:
8. Voltage range 5.0 is 5.0V ± 0.5V.
Capacitance
Symbol Parameter V
CC
(V)
(8)
T
A
= +25°C,
C
L
= 50pF
T
A
= –40°C to +85°C,
C
L
= 50pF
UnitsMin. Typ. Max. Min. Max.
f
MAX
Maximum Clock Frequency 5.0 145 210 125 MHz
t
PLH
Propagation Delay,
C
Dn
or S
Dn
to Q
n
or Q
n
5.0 3.0 5.5 9.5 2.5 10.5 ns
t
PHL
Propagation Delay,
C
Dn
or S
Dn
to Q
n
or Q
n
5.0 3.0 6.0 10.0 3.0 11.5 ns
t
PLH
Propagation Delay,
CP
n
to Q
n
or Q
n
5.0 4.0 7.5 11.0 4.0 13.0. ns
t
PHL
Propagation Delay,
CP
n
to Q
n
or Q
n
5.0 3.5 6.0 10.0 3.0 11.5 ns
Symbol Parameter V
CC
(V)
(9)
T
A
= +25°C,
C
L
= 50pF
T
A
= –40°C to +85°C,
C
L
= 50pF
UnitsTyp. Guaranteed Minimum
t
S
Set-up Time, HIGH or LOW,
D
n
to CP
n
5.0 1.0 3.0 3.5 ns
t
H
Hold Time, HIGH or LOW,
D
n
to CP
n
5.0 –0.5 1.0 1.0 ns
t
W
CP
n
or C
Dn
or S
Dn
Pulse Width 5.0 3.0 5.0 6.0 ns
t
rec
Recovery Time, C
Dn
or S
Dn
to CP 5.0 –2.5 0 0 ns
Symbol Parameter Conditions Typ. Units
C
IN
Input Capacitance V
CC
= OPEN 4.5 pF
C
PD
Power Dissipation Capacitance V
CC
= 5.0V 35.0 pF
©1988 Fairchild Semiconductor Corporation www.fairchildsemi.com
74AC74, 74ACT74 Rev. 1.6.1 9
74AC74, 74ACT74 — Dual D-Type Positive Edge-Triggered Flip-Flop
Physical Dimensions
Figure 1. 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www
.fairchildsemi.com/packaging/
LAND PATTERN RECOMMENDATION
NOTES: UNLESS OTHERWISE SPECIFIED
A) THIS PACKAGE CONFORMS TO JEDEC
MS-012, VARIATION AB, ISSUE C,
B) ALL DIMENSIONS ARE IN MILLIMETERS.
C) DIMENSIONS DO NOT INCLUDE MOLD
FLASH OR BURRS.
D) LANDPATTERN STANDARD:
SOIC127P600X145-14M
E) DRAWING CONFORMS TO ASME Y14.5M-1994
F) DRAWING FILE NAME: M14AREV13
PIN ONE
INDICATOR
8°
0°
SEATING PLANE
DETAIL A
SCALE: 20:1
GAGE PLANE
0.25
X45°
1
0.10
C
C
BC A
7
M
14
B
A
8
SEE DETAIL A
5.60
0.65
1.70 1.27
8.75
8.50
7.62
6.00
4.00
3.80
(0.33)
1.27
0.51
0.35
1.75 MAX
1.50
1.25
0.25
0.10
0.25
0.19
(1.04)
0.90
0.50
0.36
R0.10
R0.10
0.50
0.25

74ACT74SCX

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
IC FF D-TYPE DUAL 1BIT 14SOIC
Lifecycle:
New from this manufacturer.
Delivery:
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