74LCX14 Datasheet, PDF (4/8 Pages) Fairchild Semiconductor – Low Voltage Hex Inverter with 5V Tolerant Schmitt Trigger Inputs

74LCX14
AC ELECTRICAL CHARACTERISTICS
Test Condition
Value
Symbol
Parameter
V_CC
C_L R_L t_s = t_r ^{-40 to 85 °C}
-55 to 125 °C Unit
(V)
(pF) (Ω) (ns) _{Min. Max. Min. Max.}
t_PLH t_PHL Propagation Delay
Time
2.7
3.0 to 3.6
50 500 2.5
1.5
6.5
5.0
1.5
6.5
5.0
ns
t_OSLH Output To Output
3.0 to 3.6 50 500 2.5
1.0
t_OSHL ^{Skew Time (note1,}
2)
1.0
ns
1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-
ing in the same direction, either HIGH or LOW (t_OSLH = | t_PLHm - t_PLHn|, t_OSHL = | t_PHLm - t_PHLn|)
2) Parameter guaranteed by design
CAPACITIVE CHARACTERISTICS
Test Condition
Value
Symbol
Parameter
V_CC
(V)
T_A = 25 °C
Unit
Min. Typ. Max.
C_IN
Input Capacitance
3.3
V_IN = 0 to V_CC
6
pF
C_PD Power Dissipation Capacitance
3.3
(note 1)
f_IN = 10MHz
V_IN = 0 or V_CC
48
pF
1) C_PD 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. I_CC(opr) = C_PD x V_CC x f_IN + I_CC/6 (per gate)
TEST CIRCUIT
C_L = 50pF or equivalent (includes jig and probe capacitance)
R_L = 500Ω or equivalent
R_T = Z_OUT of pulse generator (typically 50Ω)
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