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MC74VHCT245A Arkusz danych(PDF) 3 Page - ON Semiconductor

Numer części MC74VHCT245A
Szczegółowy opis  Octal Bus Transceiver
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Producent  ONSEMI [ON Semiconductor]
Strona internetowa  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MC74VHCT245A Arkusz danych(HTML) 3 Page - ON Semiconductor

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MC74VHCT245A
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DC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test Conditions
VCC
V
TA = 25°C
TA = − 40 to 85°C
Unit
Min
Typ
Max
Min
Max
VIH
Minimum High−Level Input
Voltage
4.5 to 5.5
2.0
2.0
V
VIL
Maximum Low−Level Input
Voltage
4.5 to 5.5
0.8
0.8
V
VOH
Minimum High−Level Output
Voltage
Vin = VIH or VIL
IOH = − 50mA
4.5
4.4
4.5
4.4
V
IOH = − 8mA
4.5
3.94
3.80
VOL
Maximum Low−Level Output
Voltage
Vin = VIH or VIL
IOL = 50mA
4.5
0.0
0.1
0.1
V
IOL = 8mA
4.5
0.36
0.44
Iin
Maximum Input Leakage Current
Vin = 5.5 V or GND
0 to 5.5
± 0.1
± 1.0
mA
IOZ
Maximum 3−State Leakage
Current
Vin = VIL or VIH
Vout = VCC or GND
5.5
±
0.25
± 2.5
mA
ICC
Maximum Quiescent Supply
Current
Vin = VCC or GND
5.5
4.0
40.0
mA
ICCT
Quiescent Supply Current
Per Input: VIN = 3.4V
Other Input: VCC or GND
5.5
1.35
1.50
mA
IOPD
Output Leakage Current
VOUT = 5.5V
0
0.5
5.0
mA
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns)
Symbol
Parameter
Test Conditions
TA = 25°C
TA = − 40 to 85°C
Unit
Min
Typ
Max
Min
Max
tPLH,
tPHL
Maximum Propagation Delay
A to B or B to A
VCC = 5.0 ± 0.5V
CL = 15pF
CL = 50pF
4.9
5.4
7.7
8.7
1.0
1.0
8.5
9.5
ns
tPZL,
tPZH
Output Enable Time
OE to A or B
VCC = 5.0 ± 0.5V
CL = 15pF
RL = 1kW
CL = 50pF
9.4
9.9
13.8
14.8
1.0
1.0
15.0
16.0
ns
tPLZ,
tPHZ
Output Disable Time
OE to A or B
VCC = 5.0 ± 0.5V
CL = 50pF
RL = 1kW
10.1
15.4
1.0
16.5
ns
tOSLH,
tOSHL
Output to Output Skew
VCC = 5.0 ± 0.5V
CL = 50pF
(Note 1)
1.0
1.0
ns
Cin
Maximum Input Capacitance
4
10
10
pF
Cout
Maximum 3−State Output
Capacitance (Output in
High−Impedance State)
13
pF
CPD
Power Dissipation Capacitance (Note 2)
Typical @ 25
°C, VCC = 5.0V
pF
16
1. Parameter guaranteed by design. tOSLH = |tPLHm − tPLHn|, tOSHL = |tPHLm − tPHLn|.
2. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
Average operating current can be obtained by the equation: ICC(OPR) = CPD  VCC  fin + ICC / 8 (per bit). CPD is used to determine the no−load
dynamic power consumption; PD = CPD  VCC2  fin + ICC  VCC.
NOISE CHARACTERISTICS (Input tr = tf = 3.0ns, CL = 50pF, VCC = 5.0V)
Symbol
Parameter
TA = 25°C
Unit
Typ
Max
VOLP
Quiet Output Maximum Dynamic VOL
1.2
1.6
V
VOLV
Quiet Output Minimum Dynamic VOL
−1.2
−1.6
V
VIHD
Minimum High Level Dynamic Input Voltage
2.0
V
VILD
Maximum Low Level Dynamic Input Voltage
0.8
V


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