參數(shù)資料
型號： 74LVC74A
廠商： NXP Semiconductors N.V.
英文描述： Dual D-type flip-flop with set and reset; positive-edge trigger
中文描述： 帶設置和復位功能的雙D觸發(fā)器；上升沿觸發(fā)
文件頁數(shù)： 5/10頁
文件大?。?/td> 99K
代理商： 74LVC74A
Dual D-type flip-flop with set and reset;
positive-edge trigger
Philips Semiconductors
Product Specification
74LVC74A
1998 Jun 17
5
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions voltages are referenced to GND (ground = 0V)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40
°
C to +85
°
C
UNIT
MIN
TYP1
MAX
V
IH
HIGH level Input voltage
V
CC
= 1.2V
V
CC
V
V
CC
= 2.7 to 3.6V
2.0
V
IL
LOW level Input voltage
V
CC
= 1.2V
GND
V
V
CC
= 2.7 to 3.6V
0.8
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= –12mA
V
CC
0.5
V
OH
HIGH level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= –100
μ
A
V
CC
0.2
V
CC
V
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= –18mA
V
CC
0.6
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= –24mA
V
CC
1.0
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
0.40
V
OL
LOW level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= 100
μ
A
GND
0.20
V
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
0.55
I
I
Input leakage current
V
CC
= 3 6V; V = 5 5V or GND
I
= 5.5V or GND
0 1
0.1
5
μ
A
I
CC
Quiescent supply current
V
CC
= 3.6V; V
I
= V
CC
or GND; I
O
= 0
0.1
10
μ
A
I
CC
Additional quiescent supply current per
input pin
V
CC
= 2.7V to 3.6V; V
I
= V
CC
–0.6V; I
O
= 0
5
500
μ
A
NOTES:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25
°
C.
AC CHARACTERISTICS
GND = 0 V; t
r
= t
f
2.5 ns; C
L
= 50 pF; R
L
= 500 ; T
amb
= –40 C to +85 C
LIMITS
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V
±
0.3V
MIN
TYP
1
V
CC
= 2.7V
MIN
UNIT
MAX
MAX
Propagation delay
nCP to nQ, nQ
Propagation delay
nS
D
to nQ, nQ
Propagation delay
nR
D
to nQ, nQ
Clock pulse width HIGH or LOW
Set or reset pulse width LOW
Removal time set or reset
Set-up time nD to nCP
Hold time nD to nCP
Maximum clock pulse frequency
Figures 1, 3
1.5
3.6
5.2
–
6.0
ns
t
PHL
/
t
PLH
Figures 2, 3
1.5
3.5
5.4
–
6.4
ns
Figures 2, 3
1.5
3.5
5.4
–
6.4
ns
t
W
Figure 1
Figure 2
Figure 2
Figure 1
Figure 1
Figure 1
3.3
3.3
1
2.0
1
150
1.3
1.7
–3
0.8
–0.7
250
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
ns
t
rem
t
su
t
h
f
max
ns
ns
ns
MHz
NOTE:
1. These typical values are at V
CC
= 3.3V and T
amb
= 25
°
C.
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