74HC138 Datasheet, PDF (5/7 Pages) NXP Semiconductors – 3-to-8 line decoder/demultiplexer; inverting

Philips Semiconductors
3-to-8 line decoder/demultiplexer; inverting
Product specification
74HC/HCT138
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
I_CC category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF
T_amb (°C)
SYMBOL PARAMETER
74HC
+25
−40 to +85
min. typ. max. min. max.
t_PHL/ t_PLH
propagation delay
A_n to Y_n
41 150
15 30
12 26
190
38
33
t_PHL/ t_PLH
propagation delay
E₃ to Y_n
47 150
17 30
14 26
190
38
33
t_PHL/ t_PLH
propagation delay
E_n to Y_n
47 150
17 30
14 26
190
38
33
t_THL/ t_TLH
output transition
time
19 75
7 15
6 13
95
19
16
−40 to +125
min. max.
225
45
38
225
45
38
225
45
38
110
22
19
UNIT
ns
ns
ns
ns
TEST CONDITIONS
V_CC ^WAVEFORMS
(V)
2.0
4.5 Fig.6
6.0
2.0
4.5 Fig.6
6.0
2.0
4.5 Fig.7
6.0
2.0
4.5 Figs 6 and 7
6.0
September 1993
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