TC74AC138P_07 Datasheet, PDF (5/10 Pages) Toshiba Semiconductor – CMOS Digital Integrated Circuit Silicon Monolithic 3-to-8 Line Decoder

TC74AC138P/F/FN/FT
AC Characteristics (C_L = 50 pF, R_L = 500 Ω, input: t_r = t_f = 3 ns)
Characteristics
Propagation delay
time
(A, B, C- Y )
Symbol
t_pLH
t_pHL
Test Condition
―
Ta = 25°C
Ta = −40 to
85°C
Unit
V_CC (V) Min Typ. Max Min Max
3.3 ± 0.3 ―
5.0 ± 0.5 ―
8.5 14.2 1.0 16.3
ns
6.4 9.2 1.0 10.5
Propagation delay
time
t_pLH
(G1- Y )
t_pHL
3.3 ± 0.3 ―
7.5 12.8 1.0 14.7
―
ns
5.0 ± 0.5 ―
6.1 8.9 1.0 10.2
Propagation delay
time
t_pLH
( G2 - Y )
t_pHL
3.3 ± 0.3 ―
8.8 15.0 1.0 17.3
―
ns
5.0 ± 0.5 ―
7.2 10.5 1.0 12.0
Input capacitance
C_IN
Power dissipation
capacitance
C_PD
―
―
5
10
―
10
pF
(Note) ―
143
―
―
―
pF
Note:
C_PD 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:
I_{CC (opr)} = C_PD·V_CC·f_IN + I_CC
5
2007-10-01