HEF40160BD 데이터 시트보기 (PDF) - Philips Electronics
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HEF40160BD Datasheet PDF : 10 Pages
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Philips Semiconductors
4-bit synchronous decade counter with
asynchronous reset
Product specification
HEF40160B
MSI
Output transition times
HIGH to LOW
LOW to HIGH
VDD
V
SYMBOL MIN. TYP. MAX.
TYPICAL EXTRAPOLATION
FORMULA
5
10
tTHL
15
5
10
tTLH
15
60 120 ns
30 60 ns
20 40 ns
60 120 ns
30 60 ns
20 40 ns
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
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns
VDD
V
SYMBOL MIN. TYP. MAX.
Minimum clock
pulse width; LOW
Minimum MR
pulse width; LOW
Recovery time
for MR
Set-up times
Pn → CP
PE → CP
CEP, CET → CP
Hold times
Pn → CP
PE → CP
CEP, CET → CP
5
10
tWCPL
15
5
10
tWMRL
15
5
10
tRMR
15
5
10
tsu
15
5
10
tsu
15
5
10
tsu
15
5
10
thold
15
5
10
thold
15
5
10
thold
15
100
50
ns
40
20
ns
30
15
ns
100
50
ns
40
20
ns
30
15
ns
25
0
ns
15
0
ns
10
0
ns
110
55
ns
40
20
ns
30
15
ns
120
60
ns
40
20
ns
25
10
ns
260 130
ns
100
50
ns
70
35
ns
20
−35
ns
10
−10
ns
5
−10
ns
15
−45
ns
5
−15
ns
5
−10
ns
25 −105
ns
15
−35
ns
10
−25
ns
see also waveforms
Figs 5, 6, 7 and 8
January 1995
6
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