74HC238 Datasheet, PDF (5/7 Pages) NXP Semiconductors – 3-to-8 line decoder/demultiplexer

Philips Semiconductors
3-to-8 line decoder/demultiplexer
Product specification
74HC/HCT238
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)
TEST CONDITIONS
SYMBOL PARAMETER
+25
min. typ. max.
74HC
−40 to +85
min. max.
−40 to +125
min. max.
UNIT _VCC WAVEFORMS
(V)
t_PHL/ t_PLH propagation delay
A_n to Y_n
t_PHL/ t_PLH propagation delay
E₃ to Y_n
47 150
190
225 ns 2.0 Fig.6
17 30
38
45
4.5
14 26
33
38
6.0
52 160
200
240 ns 2.0 Fig.6
19 32
40
48
4.5
15 27
34
41
6.0
t_PHL/ t_PLH propagation delay
E_n to Y_n
50 155
195
235 ns 2.0 Fig.7
18 31
39
47
4.5
14 26
33
40
6.0
t_THL/ t_TLH output transition time
19 75
95
110 ns 2.0 Figs 6 and 7
7 15
19
22
4.5
6 13
16
19
6.0
December 1990
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