74HC354 Datasheet, PDF (10/14 Pages) NXP Semiconductors – 8-input multiplexer/register with transparent latches; 3-state

Philips Semiconductors
8-input multiplexer/register with
transparent latches; 3-state
Product specification
74HC/HCT354
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF
T_amb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
74HCT
+25
−40 to +85
−40 to +125
UNIT
V_CC
(V)
WAVEFORMS
min. typ. max. min. max. min. max.
t_PHL/ t_PLH
t_PHL/ t_PLH
propagation delay
D_n to Y, Y
propagation delay
E to Y, Y
25 47
59
26 54
68
t_PHL/ t_PLH
t_PHL/ t_PLH
propagation delay
S_n to Y, Y
propagation delay
LE to Y, Y
30 59
74
31 63
79
t_PZH/ t_PZL 3-state output enable time
18 34
43
OE_n to Y, Y
t_PZH/ t_PZL 3-state output enable time
18 34
43
OE₃ to Y, Y
t_PHZ/ t_PLZ 3-state output disable time
18 33
41
OE_n to Y, Y
t_PHZ/ t_PLZ 3-state output disable time
21 39
49
OE₃ to Y, Y
t_THL/ t_TLH output transition time
5 12
15
71 ns 4.5 Fig.7
81 ns 4.5 Fig.6
89 ns 4.5 Fig.8
95 ns 4.5 Fig.9
51 ns 4.5 Fig.10
51 ns 4.5 Fig.10
50 ns 4.5 Fig.10
59 ns 4.5 Fig.10
18 ns 4.5 Figs 7, 8 and 9
t_W
data enable pulse width E 16 6
20
24
LOW
t_W
latch enable pulse width 16 6
20
24
LE LOW
t_su
set-up time
D_n to E
t_su
set-up time
S_n to LE
t_h
hold time
D_n to E
t_h
hold time
S_n to LE
10 4
13
15
10 5
13
15
90
11
14
9 −3
11
14
ns 4.5 Fig.6
ns 4.5 Fig.9
ns 4.5 Fig.11
ns 4.5 Fig.10
ns 4.5 Fig.11
ns 4.5 Fig.10
December 1990
10