4044B データシートの表示（PDF） - Philips Electronics
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4044B Datasheet PDF : 5 Pages
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Philips Semiconductors
Quadruple R/S latch with 3-state outputs
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns
VDD
V
SYMBOL MIN. TYP. MAX.
Propagation delays
Rn → On
HIGH to LOW
Sn → On
LOW to HIGH
Output transition
times
HIGH to LOW
LOW to HIGH
3-state propagation delays
Output disable times
EO → On
HIGH
LOW
Output enable times
EO → On
HIGH
LOW
Minimum Sn
pulse width; LOW
Minimum Rn
pulse width; LOW
5
10
tPHL
15
5
10
tPLH
15
5
10
tTHL
15
5
10
tTLH
15
5
10
tPHZ
15
5
10
tPLZ
15
5
10
tPZH
15
5
10
tPZL
15
5
10
tWSL
15
5
10
tWRL
15
90 185 ns
40 80 ns
30 60 ns
90 180 ns
40 80 ns
30 60 ns
60 120 ns
30 60 ns
20 40 ns
60 120 ns
30 60 ns
20 40 ns
50 100 ns
30 60 ns
25 50 ns
30 60 ns
25 45 ns
20 40 ns
50 100 ns
25 50 ns
20 40 ns
50 95 ns
25 45 ns
20 35 ns
30 15
ns
20 10
ns
16 8
ns
30 15
ns
20 10
ns
16 8
ns
Product specification
HEF4044B
MSI
TYPICAL EXTRAPOLATION
FORMULA
63 ns + (0,55 ns/pF) CL
29 ns + (0,23 ns/pF) CL
22 ns + (0,16 ns/pF) CL
63 ns + (0,55 ns/pF) CL
29 ns + (0,23 ns/pF) CL
22 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
see also waveforms
Fig.5
January 1995
4
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