74HC4543 Datasheet, PDF (7/11 Pages) NXP Semiconductors – BCD to 7-segment latch/decoder/driver for LCDs

Philips Semiconductors
BCD to 7-segment latch/decoder/driver for
LCDs
Product specification
74HC/HCT4543
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t_r = t_f = 6 ns; C_L = 50 pF
T_amb (°C)
TEST CONDITIONS
SYMBOL
PARAMETER
74HC
+25
−40 to +85
UNIT
−40 to +125
V_CC
(V)
min. typ. max. min. max. min. max.
OTHER
t_PHL/ t_PLH propagation delay
D_n to Q_n
91 340
425
510 ns
33 68
85
102
26 58
72
87
t_PHL/ t_PLH propagation delay
LD to Q_n
102 370
465
555 ns
37 74
93
111
30 63
79
94
t_PHL/ t_PLH propagation delay
BI to Q_n
66 265
330
400 ns
24 53
66
80
19 45
56
68
t_PHL/ t_PLH propagation delay
PH to Q_n
55 200
250
300 ns
20 40
50
60
16 34
43
51
t_THL/ t_TLH output transition time
63 250
315
375 ns
23 50
63
75
18 43
54
64
t_W
LD pulse width
35 11
45
55
ns
HIGH or LOW
74
9
11
63
8
9
t_su
set-up time
D_n to LD
60 8
12 3
10 2
75
90
ns
15
18
13
15
t_h
hold time
D_n to LD
30 3
61
51
40
45
ns
8
9
7
8
2.0 Fig.12
4.5
6.0
2.0 Fig.13
4.5
6.0
2.0 Fig.14
4.5
6.0
2.0
4.5
6.0
2.0 Figs 12, 13 and 14
4.5
6.0
2.0 Fig.13
4.5
6.0
2.0 Fig.15
4.5
6.0
2.0 Fig.15
4.5
6.0
December 1990
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