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MC74VHC541 Datasheet, PDF (3/6 Pages) Motorola, Inc – Octal Bus Buffer | |||
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MC74VHC541
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Symbol
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPLH,
tPHL
Parameter
Maximum Propagation Delay,
A to Y
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPZL,
tPZH
Output Enable TIme,
OE to Y
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPLZ,
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tPHZ
Output Disable Time,
OE to Y
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tOSLH, OutputtoOutputSkew
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ tOSHL
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Cin MaximumInputCapacitance
Cout Maximum ThreeâState Output
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Capacitance (Output in High
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ 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 40 to 85°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
VOLP
VOLV
VIHD
VILD
Parameter
Quiet Output Maximum Dynamic VOL
Quiet Output Minimum Dynamic VOL
Minimum High Level Dynamic Input Voltage
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 â0.3V
HIGH
IMPEDANCE
http://onsemi.com
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