
Philips Semiconductors
4-bit synchronous binary counter with
synchronous reset
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
Set-up times
Pn → CP
PE → CP
CEP, CET → CP
SR → CP
Hold times
Pn → CP
PE → CP
CEP, CET → CP
SR → CP
Maximum clock
pulse frequency
5
10
tWCPL
15
5
10
tsu
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
5
10
thold
15
5
10
fmax
15
100
40
30
110
40
30
120
40
25
260
100
70
50
20
15
20
10
5
15
5
5
25
15
10
15
5
5
2,5
7
9
50
20
15
55
20
15
60
20
10
130
50
35
25
10
10
−35
−10
−10
−45
−15
−10
−105
−35
−25
−10
−5
0
5
14
18
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MHz
MHz
MHz
Product specification
HEF40163B
MSI
see also waveforms
Figs 5, 6, 7 and 8
January 1995
6