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74VHC541 数据表(PDF) 4 Page - STMicroelectronics

部件名 74VHC541
功能描述  OCTAL BUS BUFFER WITH 3 STATE OUTPUTS (NON INVERTED)
PDF  12 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

74VHC541 数据表(HTML) 4 Page - STMicroelectronics

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Table 7: AC Electrical Characteristics (Input tr = tf = 3ns)
(*) Voltage range is 3.3V
± 0.3V
(**) Voltage range is 5.0V
± 0.5V
Note 1: Parameter guaranteed by design. tsoLH = |tpLHm - tpLHn|, tsoHL = |tpHLm - tpHLn|
Table 8: Capacitive Characteristics
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 x VCC x fIN + ICC/8 (per
Circuit)
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
CL
(pF)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tPLH
tPHL
Propagation Delay
Time
3.3(*)
15
5.0
7.0
1.0
8.5
1.0
8.5
ns
3.3(*)
50
7.5
10.5
1.0
12.0
1.0
12.0
5.0(**)
15
3.5
5.0
1.0
6.0
1.0
6.0
5.0(**)
50
5.0
7.0
1.0
8.0
1.0
8.0
tPZL
tPZH
Output Enable
Time
3.3(*)
15
RL = 1KΩ
6.8
10.5
1.0
12.5
1.0
12.5
ns
3.3(*)
50
RL = 1KΩ
9.3
14.0
1.0
16.0
1.0
16.0
5.0(**)
15
RL = 1KΩ
4.7
7.2
1.0
8.5
1.0
8.5
5.0(**)
50
RL = 1KΩ
6.2
9.2
1.0
10.5
1.0
10.5
tPLZ
tPHZ
Output Disable
Time
3.3(*)
50
RL = 1KΩ
11.2
15.4
1.0
17.5
1.0
17.5
ns
5.0(**)
50
RL = 1KΩ
6.0
8.8
1.0
10.0
1.0
10.0
tOSLH
tOSHL
Output to Output
Skew time (note 1)
3.3(*)
50
1.5
1.5
1.5
ns
5.0(**)
50
1.0
1.0
1.0
Symbol
Parameter
Test Condition
Value
Unit
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
CIN
Input Capacitance
710
10
10
pF
COUT
Output
Capacitance
9pF
CPD
Power Dissipation
Capacitance
(note 1)
18
pF



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