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參數(shù)資料
| 型號(hào)： | 74FR1074SCX |
| 英文描述： | SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits |
| 中文描述： | 雙D型觸發(fā)器 |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大小： | 80K |
| 代理商： | 74FR1074SCX |
Philips Semiconductors
Product specification
74F74
Dual D-type flip-flop
1996 Mar 12
3
LOGIC DIAGRAM
V
= Pin 14
GND = Pin 7
5, 9
6, 8
Q
Q
4, 10
1, 13
3, 11
2, 12
SD
RD
CP
D
SF00048
FUNCTION TABLE
INPUTS
OUTPUTS
OPERATING
MODE
SD
RD
CP
D
Q
Q
L
H
X
X
H
L
Asynchronous set
H
L
X
X
L
H
Asynchronous reset
L
L
X
X
H
H
Undetermined*
H
H
↑
↑
↑
h
H
L
Load ”1”
H
H
l
L
H
Load ”0”
H
H
X
NC
NC
Hold
NOTES:
H =
h
=
transition
L
=
l
=
transition
NC=
X =
↑
=
↑
=
*
=
return to the high level.
High voltage level
High voltage level one setup time prior to low-to-high clock
Low voltage level
Low voltage level one setup time prior to low-to-high clock
No change from the previous setup
Don’t care
Low-to-high clock transition
Not low-to-high clock transition
This setup is unstable and will change when either set or reset
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free air temperature range.)
SYMBOL
PARAMETER
RATING
UNIT
V
CC
V
IN
I
IN
V
OUT
I
OUT
Supply voltage
–0.5 to +7.0
V
Input voltage
–0.5 to +7.0
V
Input current
–30 to +5
mA
Voltage applied to output in high output state
–0.5 to V
CC
40
V
Current applied to output in low output state
mA
T
amb
Operating free air temperature range
Commercial range
0 to +70
°
C
Industrial range
–40 to +85
°
C
°
C
T
stg
Storage temperature range
–65 to +150
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
MIN
NOM
MAX
V
CC
V
IH
V
IL
I
Ik
I
OH
I
OL
Supply voltage
4.5
5.0
5.5
V
High-level input voltage
2.0
V
Low-level input voltage
0.8
V
Input clamp current
–18
mA
High-level output current
–1
mA
Low-level output current
20
mA
T
amb
Operating free air temperature range
O erating free air tem erature range
Commercial range
0
+70
°
C
°
C
Industrial range
–40
+85
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