74HCT4511 데이터 시트보기 (PDF) - Philips Electronics
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74HCT4511 Datasheet PDF : 12 Pages
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Philips Semiconductors
BCD to 7-segment latch/decoder/driver
Product specification
74HC/HCT4511
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
Tamb (°C)
TEST CONDITIONS
SYMBOL PARAMETER
min.
74HCT
+25
−40 to +85
typ. max. min. max.
−40 to +125
UNIT
VCC
(V)
min. max.
WAVEFORMS
tPHL/ tPLH propagation delay
Dn to Qn
28 60
75
tPHL/ tPLH propagation delay
LE to Qn
27 54
68
tPHL/ tPLH propagation delay
BI to Qn
23 44
55
tPHL/ tPLH propagation delay
LT to Qn
16 30
38
tTHL/ tTLH output transition time
7 15
19
90 ns 4.5 Fig.8
81 ns 4.5 Fig.9
66 ns 4.5 Fig.10
45 ns 4.5 Fig.8
22 ns 4.5 Figs 8, 9 and
10
tW
latch enable pulse
16 5
width
LOW
20
24
ns 4.5 Fig.9
tsu
set-up time
Dn to LE
th
hold time
Dn to LE
12 5
15
18
0 −4
0
0
ns 4.5 Fig.11
ns 4.5 Fig.11
December 1990
9
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