74LCX16541 Datasheet, PDF (5/9 Pages) STMicroelectronics – LOW VOLTAGE CMOS 16-BIT BUS BUFFER (3-STATE) WITH 5V TOLERANT INPUTS/OUTPUTS (NON INVERTED)

74LCX16541
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_I = 0V or V_CC
4
pF
C_OUT Output Capacitance
3.3
V_I = 0V or V_CC
10
pF
C_PD Power Dissipation Capacitance
2.5
(note 1) Output enabled
3.3
f_IN = 10MHz
V_I = 0V or V_CC
45
pF
50
Power Dissipation Capacitance
2.5
(note 1) Output disabled
3.3
f_IN = 10MHz
V_I = 0V or V_CC
3
pF
4
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/ 16
TEST CIRCUIT
TEST
t_PLH, t_PHL
t_PZL, t_PLZ
t_PZH, t_PHZ
C_L = 50 pF or equivalent (includes jig and probe capacitance)
R_L = R1 = 500 Ω or equivalent
R_T = Z_OUT of pulse generator (typically 50Ω)
SWITCH
Open
2V_CC
GND
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