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| MC74VHC541_14 Datasheet, PDF (3/6 Pages) ON Semiconductor – Octal Bus Buffer | |||
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MC74VHC541
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns)
Symbol
tPLH,
tPHL
Parameter
Maximum Propagation Delay,
A to Y
tPZL,
tPZH
Output Enable TIme,
OE to Y
tPLZ,
tPHZ
Output Disable Time,
OE to Y
tOSLH, Output to Output Skew
tOSHL
Cin Maximum Input Capacitance
Cout Maximum ThreeâState Output
Capacitance (Output in High
Impedance State)
Test Conditions
VCC = 3.3 ± 0.3V
CL = 15pF
CL = 50pF
VCC = 5.0 ± 0.5V
CL = 15pF
CL = 50pF
VCC = 3.3 ± 0.3V
RL = 1kW
CL = 15pF
CL = 50pF
VCC = 5.0 ± 0.5V
RL = 1kW
CL = 15pF
CL = 50pF
VCC = 3.3 ± 0.3V
RL = 1kW
CL = 50pF
VCC = 5.0 ± 0.5V
RL = 1kW
CL = 50pF
VCC = 3.3 ± 0.3V
(Note 1)
CL = 50pF
VCC = 5.0 ± 0.5V
(Note 1)
CL = 50pF
TA = 25°C
Min Typ Max
5.0 7.0
7.5 10.5
3.5 5.0
5.0 7.0
6.8 10.5
9.3 14.0
4.7 7.2
6.2 9.2
11.2 15.4
6.0 8.8
1.5
1.0
4
10
6
TA = â 55 to 125°C
Min
Max Unit
1.0
8.5
ns
1.0
12.0
1.0
6.0
1.0
8.0
1.0
12.5
ns
1.0
16.0
1.0
8.5
1.0
10.5
1.0
17.5
ns
1.0
10.0
1.5
ns
1.0
ns
10
pF
pF
Typical @ 25°C, VCC = 5.0V
CPD Power Dissipation Capacitance (Note 2)
18
pF
1. Parameter guaranteed by design. tOSLH = |tPLHm â tPLHn|, tOSHL = |tPHLm â 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 noâload
dynamic power consumption; PD = CPD VCC2 fin + ICC VCC.
NOISE CHARACTERISTICS (Input tr = tf = 3.0ns, CL = 50pF, VCC = 5.0V)
Symbol
Parameter
VOLP Quiet Output Maximum Dynamic VOL
VOLV Quiet Output Minimum Dynamic VOL
VIHD Minimum High Level Dynamic Input Voltage
VILD Maximum Low Level Dynamic Input Voltage
TA = 25°C
Typ
Max Unit
0.9
1.2
V
â 0.9
â 1.2
V
3.5
V
1.5
V
A
50%
tPLH
Y
50% VCC
Figure 2.
SWITCHING WAVEFORMS
VCC
GND
tPHL
OE1 or OE2
Y
Y
50%
tPZL tPLZ
50% VCC
tPZH tPHZ
50% VCC
Figure 3.
VCC
50%
GND
HIGH
IMPEDANCE
VOL +0.3V
VOH -0.3V
HIGH
IMPEDANCE
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