HEC4024B 查看數據表（PDF） - Philips Electronics
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HEC4024B Datasheet PDF : 5 Pages
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Philips Semiconductors
7-stage binary counter
Product specification
HEF4024B
MSI
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns; see also waveforms Fig.4
VDD
V
SYMBOL MIN.
TYP.
MAX.
TYPICAL
EXTRAPOLATION
FORMULA
Propagation delays
CP → O0
HIGH to LOW
LOW to HIGH
On → On + 1
HIGH to LOW
LOW to HIGH
MR → On
HIGH to LOW
Output transition times
HIGH to LOW
LOW to HIGH
Minimum clock
pulse width; HIGH
Minimum MR
pulse width; HIGH
Recovery time
for MR
Maximum clock
pulse frequency
5
10 tPHL
15
5
10 tPLH
15
5
10 tPHL
15
5
10 tPLH
15
5
10 tPHL
15
5
10 tTHL
15
5
10 tTLH
15
5
10 tWCPH
15
5
10 tWMRH
15
5
10 tRMR
15
5
10 fmax
15
100
40
25
105
45
30
60
25
20
50
20
15
120
45
30
60
30
20
60
30
20
60
30
30
15
20
10
80
40
35
20
25
15
20
10
15
5
15
5
5
10
13
25
18
35
200 ns
75 ns
50 ns
210 ns
85 ns
60 ns
120 ns
50 ns
40 ns
100 ns
40 ns
30 ns
240 ns
90 ns
60 ns
120 ns
60 ns
40 ns
120 ns
60 ns
40 ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
MHz
73 ns +
29 ns +
17 ns +
78 ns +
34 ns +
22 ns +
33 ns +
14 ns +
12 ns +
23 ns +
9 ns +
7 ns +
93 ns +
34 ns +
22 ns +
10 ns +
9 ns +
6 ns +
10 ns +
9 ns +
6 ns +
(0,55 ns/pF) CL
(0,23 ns/pF) CL
(0,16 ns/pF) CL
(0,55 ns/pF) CL
(0,23 ns/pF) CL
(0,16 ns/pF) CL
(0,55 ns/pF) CL
(0,23 ns/pF) CL
(0,16 ns/pF) CL
(0,55 ns/pF) CL
(0,23 ns/pF) CL
(0,16 ns/pF) CL
(0,55 ns/pF) CL
(0,23 ns/pF) CL
(0,16 ns/pF) CL
(1,0 ns/pF) CL
(0,42 ns/pF) CL
(0,28 ns/pF) CL
(1,0 ns/pF) CL
(0,42 ns/pF) CL
(0,28 ns/pF) CL
January 1995
4
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