74LVC541A
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5
AC ELECTRICAL CHARACTERISTICS (tR = tF = 2.5 ns)
Symbol Parameter Conditions
−405C to +855C−405C to +1255C
Unit
Min Typ1Max Min Typ1Max
tpd Propagation Delay (Note 6)
nAn to nYn VCC = 1.2 V − 14.0 − − − − ns
VCC = 1.65 V to 1.95 V 1.5 6.5 13.8 1.5 − 16.0
VCC = 2.3 V to 2.7 V 1.0 3.5 6.8 1.0 − 7.9
VCC = 2.7 V 1.5 3.5 5.6 1.5 − 7.0
VCC = 3.0 V to 3.6 V 1.0 2.9 5.1 1.0 − 6.5
ten Enable Time (Note 7)
nOE to nYn VCC = 1.2 V − 20.0 − − − − ns
VCC = 1.65 V to 1.95 V 1.8 7.7 16.0 1.8 − 18.5
VCC = 2.3 V to 2.7 V 1.5 4.3 8.8 1.5 − 10.2
VCC = 2.7 V 1.5 4.4 7.5 1.5 − 9.5
VCC = 3.0 V to 3.6 V 1.0 3.5 7.0 1.0 − 9.0
tdis Disable Time (Note 8)
nOE to nYn VCC = 1.2 V − 11.0 − − − − ns
VCC = 1.65 V to 1.95 V 3.0 4.9 10.3 3.0 − 11.9
VCC = 2.3 V to 2.7 V 1.0 2.7 5.9 1.0 − 6.8
VCC = 2.7 V 1.5 3.7 7.0 1.5 − 9.0
VCC = 3.0 V to 3.6 V 1.0 3.3 6.0 1.0 − 7.5
tsk(0) Output Skew Time (Note 9) − − 1 − − 1.5 ns
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.
5. Typical values are measured at TA = 25°C and VCC = 3.3 V, unless stated otherwise.
6. tpd is the same as tPLH and tPHL.
7. ten is the same as tPZL and tPZH.
8. tdis is the same as tPLZ and tPHZ.
9. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.
DYNAMIC SWITCHING CHARACTERISTICS
Symbo
Characteristic Condition
TA = +25°C
Unit
Min Typ Max
VOLP Dynamic LOW Peak Voltage (Note 10) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V 0.8
0.6 V
VOLV Dynamic LOW Valley Voltage (Note
10) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V −0.8
−0.6 V
10.Number of outputs defined as “n”. Measured with “n−1” outputs switching from HIGH−to−LOW or LOW−to−HIGH. The remaining output is
measured in the LOW state.
CAPACITIVE CHARACTERISTICS
Symbol Parameter Condition Typical Unit
CIN Input Capacitance VCC = 3.3 V, VI = 0 V or VCC 4.0 pF
COUT Output Capacitance VCC = 3.3 V, VI = 0 V or VCC 5.0 pF
CPD Power Dissipation Capacitance
(Note 11) Per input; VI = GND or VCC pF
VCC = 1.65 V to 1.95 V 7.7
VCC = 2.3 V to 2.7 V 11.3
VCC = 3.0 V to 3.6 V 14.4
11. CPD is used to determine the dynamic power dissipation (PD in mW).
PD = CPD * VCC2 x fi * N + S (CL x VCC2 x fo) where:
fi = input frequency in MHz; fo = output frequency in MHz
CL = output load capacitance in pF VCC = supply voltage in Volts
N = number of outputs switching
S(CL * VCC2 x fo) = sum of the outputs.