HEF40374B Ver la hoja de datos (PDF) - Philips Electronics
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HEF40374B Datasheet PDF : 7 Pages
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Philips Semiconductors
Octal D-type flip-flop 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
CP → On
HIGH to LOW
CP → 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
Set-up time
Dn → CP
Hold time
Dn → CP
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 tsu
15
5
10 thold
15
125 250 ns
55 110 ns
40 80 ns
125 250 ns
55 110 ns
40 80 ns
40 80 ns
20 40 ns
15 30 ns
30 60 ns
20 40 ns
15 30 ns
60 120 ns
30 60 ns
24 48 ns
70 140 ns
35 70 ns
30 60 ns
65 130 ns
30 60 ns
24 48 ns
85 170 ns
35 70 ns
25 50 ns
20
0
ns
20
2
ns
20
5
ns
20 10
ns
15
2
ns
10
0
ns
Product specification
HEF40374B
MSI
TYPICAL EXTRAPOLATION
FORMULA
113 ns + (0,24 ns/pF) CL
54 ns + (0,01 ns/pF) CL
36 ns + (0,07 ns/pF) CL
122 ns + (0,06 ns/pF) CL
53 ns + (0,03 ns/pF) CL
39 ns + (0,02 ns/pF) CL
see Fig.6
January 1995
6
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