74HC237 Datasheet, PDF (6/9 Pages) NXP Semiconductors – 3-to-8 line decoder/demultiplexer with address latches

Philips Semiconductors
3-to-8 line decoder/demultiplexer with
address latches
Product specification
74HC/HCT237
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
LE to Y_n
52 160
200
240 ns 2.0 Fig.6
19 32
40
48
4.5
15 27
34
41
6.0
61 190
240
285 ns 2.0 Fig.7
22 38
48
57
4.5
18 32
41
48
6.0
t_PHL/ t_PLH propagation delay
E₁ to Y_n
47 145
180
220 ns 2.0 Fig.7
17 29
36
44
4.5
14 25
31
38
6.0
t_PHL/ t_PLH propagation delay
E₂ to Y_n
t_THL/ t_TLH output transition time
47 145
180
220 ns 2.0 Fig.6
17 29
36
44
4.5
14 25
31
38
6.0
19 75
95
110 ns 2.0 Fig.6
7 15
19
22
4.5
6 13
16
19
6.0
t_W
LE pulse width
LOW
50 11
10 4
93
65
75
13
15
11
13
ns 2.0 Fig.8
4.5
6.0
t_su
set-up time
A_n to LE
t_h
hold time
A_n to LE
50 6
10 2
92
30 3
61
51
65
75
13
15
11
13
40
45
8
9
7
8
ns 2.0 Fig.8
4.5
6.0
ns 2.0 Fig.8
4.5
6.0
December 1990
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