HEF4543BN 查看數據表（PDF） - Philips Electronics
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HEF4543BN Datasheet PDF : 8 Pages
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Philips Semiconductors
BCD to 7-segment latch/decoder/driver
Product specification
HEF4543B
MSI
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns
VDD
V
SYMBOL MIN. TYP. MAX.
Propagation delays
Dn → On
HIGH to LOW
LOW to HIGH
LD → On
HIGH to LOW
LOW to HIGH
BI → On
HIGH to LOW
LOW to HIGH
Output transition times
HIGH to LOW
LOW to HIGH
Minimum LD
pulse width; HIGH
Set-up time
Dn → LD
Hold time
Dn → LD
5
10
tPHL
15
5
10
tPLH
15
5
10
tPHL
15
5
10
tPLH
15
5
10
tPHL
15
5
10
tPLH
15
5
10
tTHL
15
5
10
tTLH
15
5
10
tWLDH
15
5
10
tsu
15
5
10
thold
15
180 360 ns
75 150 ns
55 110 ns
180 360 ns
75 150 ns
55 110 ns
170 340 ns
80 160 ns
60 120 ns
190 380 ns
80 160 ns
60 120 ns
145 290 ns
65 130 ns
45 90 ns
125 250 ns
55 110 ns
40 80 ns
60 120 ns
30 60 ns
20 40 ns
60 120 ns
30 60 ns
20 40 ns
60 30
ns
30 15
ns
20 10
ns
40 20
ns
20
5
ns
15
0
ns
0 −15
ns
15
0
ns
20
5
ns
TYPICAL EXTRAPOLATION
FORMULA
153 ns + (0,55 ns/pF) CL
64 ns + (0,23 ns/pF) CL
47 ns + (0,16 ns/pF) CL
153 ns + (0,55 ns/pF) CL
64 ns + (0,23 ns/pF) CL
47 ns + (0,16 ns/pF) CL
143 ns + (0,55 ns/pF) CL
69 ns + (0,23 ns/pF) CL
52 ns + (0,16 ns/pF) CL
163 ns + (0,55 ns/pF) CL
69 ns + (0,23 ns/pF) CL
52 ns + (0,16 ns/pF) CL
118 ns + (0,55 ns/pF) CL
54 ns + (0,23 ns/pF) CL
37 ns + (0,16 ns/pF) CL
98 ns + (0,55 ns/pF) CL
54 ns + (0,23 ns/pF) CL
32 ns + (0,16 ns/pF) CL
10 ns + (1,0 ns/pF) CL
9 ns + (0,42 ns/pF) CL
6 ns + (0,28 ns/pF) CL
10 ns + (1,0 ns/pF) CL
9 ns + (0,42 ns/pF) CL
6 ns + (0,28 ns/pF) CL
January 1995
5
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