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74ACT541 数据表(PDF) 3 Page - STMicroelectronics

部件名 74ACT541
功能描述  OCTAL BUS BUFFER WITH 3 STATE OUTPUTS NON INVERTED
PDF  8 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

74ACT541 数据表(HTML) 3 Page - STMicroelectronics

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DC SPECIFICATIONS
Symb ol
Parameter
Test Co nditi ons
Valu e
Un it
VCC
(V)
TA =25
oC
-40 to 85
oC
Min.
T yp.
Max.
Mi n.
Max.
VIH
High Level Input Voltage
4.5
VO =0.1 V or
VCC -0.1 V
2.0
1.5
2.0
V
5.5
2.0
1.5
2.0
VIL
Low Level Input Voltage
4.5
VO =0.1 V or
VCC -0.1 V
1.5
0.8
0.8
V
5.5
1.5
0.8
0.8
VOH
High Level Output
Voltage
4.5
VI
(*) =
VIH or
VIL
IO=-50
µA
4.4
4.49
4.4
V
5.5
IO=-50
µA
5.4
5.49
5.4
4.5
IO=-24 mA
3.86
3.76
5.5
IO=-24 mA
4.86
4.76
VOL
Low Level Output
Voltage
4.5
VI
(*) =
VIH or
VIL
IO=50
µA
0.001
0.1
0.1
V
5.5
IO=50 mA
0.001
0.1
0.1
4.5
IO=24 mA
0.36
0.44
5.5
IO=24 mA
0.36
0.44
II
Input Leakage Current
5.5
VI =VCC orGND
±0.1
±1
µA
IOZ
3 State Output Leakage
Current
5.5
VI =VIH orVIL
VO =VCC orGND
±0.5
±5
µA
ICCT
Max ICC /Input
5.5
VI =VCC -2.1V
0.6
1.5
mA
ICC
Quiescent Supply
Current
5.5
VI =VCC orGND
4
40
µA
IOLD
Dynamic Output Current
(note 1, 2)
5.5
VOLD = 1.65 V max
75
mA
IOHD
VOHD = 3.85 V min
-75
mA
1) Maximum test duration 2ms, one output loaded attime
2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50
Ω.
CAPACITIVE CHARACTERISTICS
Symbo l
Parameter
Test Con dition s
Value
Uni t
VCC
(V)
T A =25
oC
-40 to 85
oC
Mi n.
T yp.
Max.
Min.
Max.
CIN
Input Capacitance
5.0
4
pF
CPD
Power Dissipation
Capacitance (note 1)
5.0
22
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to
Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD
• VCC • fIN +ICC/8 (per circuit)
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500
Ω, Input tr =tf =3 ns)
Symb ol
Parameter
T est Con ditio n
Valu e
Un it
VCC
(V)
TA =25
oC
-40 to 85
oC
Min.
T yp.
Max.
Mi n.
Max.
tPLH
tPHL
Propagation Delay Time
5.0
(*)
1.556.5
1.5
7.15
ns
tPZL
tPZH
Output Enable Time
5.0
(*)
1.567.8
1.5
8.5
ns
tPLZ
tPHZ
Output Disable Time
5.0
(*)
1.567.8
1.5
8.5
ns
(*) Voltage range is 5V
± 0.5V
74ACT541
3/8



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