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74VHCT273AT bảng dữ liệu(PDF) 4 Page - STMicroelectronics

tên linh kiện 74VHCT273AT
Giải thích chi tiết về linh kiện  OCTAL D-TYPE FLIP FLOP WITH CLEAR
PDF  9 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74VHCT273AT bảng dữ liệu(HTML) 4 Page - STMicroelectronics

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CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
T est Cond ition s
Val ue
Un it
TA =25
oC
-40 to 85
oC
Min.
Typ .
Max.
Min .
Max.
CIN
Input Capacitance
4
10
10
pF
CPD
Power Dissipation
Capacitance (note 1)
15
pF
1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
Test Circuit).Average operating current can be obtained by the following equation. ICC(opr) = CPD
• VCC • fIN +ICC/8 (per Flip-Flop)
AC ELECTRICAL CHARACTERISTICS (Input tr =tf =3 ns)
Symb ol
Parameter
Test Co nditi on
Val ue
Un it
VCC
(V)
CL
(pF )
TA =25
oC
-40 to 85
oC
Min.
Typ .
Max.
Min .
Max.
tPLH
tPHL
Propagation Delay
Time CK to Q
5.0
(*)
15
5.6
8.2
1.0
10.0
ns
5.0
(*)
50
6.3
9.2
1.0
11.0
tPHL
Propagation Delay
Time CLR to Q
5.0
(*)
15
6.9
10.0
1.0
11.6
ns
5.0
(*)
50
7.7
11.0
1.0
12.6
tw
CLR pulse Width
LOW
5.0
(*)
5.0
5.0
ns
tw
CK pulse Width
HIGH or LOW
5.0
(*)
5.0
5.0
ns
ts
Setup Time D to CK
HIGH or LOW
5.0
(*)
2.0
2.0
ns
th
Hold Time D to CK
HIGH or LOW
5.0
(*)
2.0
2.0
ns
tREM
Removal Time
CLR to CK
5.0
(*)
1.0
1.0
ns
fMAX
Maximum Clock
Frequency
5.0
(*)
15
75
170
65
MHz
5.0
(*)
50
50
160
45
tOSLH
tOSHL
Output to Output Skew
Time (note 1)
5.0
(*)
50
1.0
1.0
ns
(*) Voltage range is 5V
± 0.5V
Note 1: Parameter guaranteed by design. tsoLH =|tpLHm-tpLHn|, tsoHL =|tpHLm -tpHLn|
DYNAMIC SWITCHING CHARACTERISTICS
Symb ol
Parameter
T est Cond ition s
Val ue
Un it
VCC
(V)
TA =25
oC
-40 to 85
oC
Min.
Typ .
Max.
Min .
Max.
VOLP
Dynamic Low Voltage
Quiet Output (note 1, 2)
5.0
CL =50 pF
0.6
0.9
V
VOLV
-0.9
-0.6
VIHD
Dynamic High Voltage
Input (note 1, 3)
5.0
2.0
VILD
Dynamic Low Voltage
Input (note 1, 3)
5.0
0.8
1) Worst case package.
2) Max number of outputs defined as (n). Data inputs are driven 0V to 3.0V, (n -1) outputs switching and one output at GND.
3) Max number of data inputs (n) switching. (n-1) switching 0V to3.0V. Inputs under test switching: 3.0V to threshold (VILD), 0V to threshold (VIHD), f=1MHz.
74VHCT273A
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