HEF4724 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
HEF4724 Datasheet PDF : 7 Pages
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Philips Semiconductors
8-bit addressable latch
Product specification
HEF4724B
MSI
Set-up times
D→E
An → E
Hold times
D→E
An → E
Minimum E
pulse width; LOW
Minimum CL
pulse width; HIGH
VDD
V
SYMBOL MIN. TYP. MAX.
TYPICAL EXTRAPOLATION
FORMULA
5
40 20
ns
10
tsu
15
15
5
ns
10
0
ns
5
40 20
ns
10
tsu
15
20 10
ns
15
5
ns
5
20
0
ns
10
thold
15
5
15
5
ns
15
5
ns
50 25
ns
see also waveforms
Fig.5
10
thold
15
20 10
ns
15
5
ns
5
75 35
ns
10
tWEL
15
30 15
ns
20 10
ns
5
70 35
ns
10
tWCLH
30 15
ns
15
20 10
ns
AC CHARACTERISTICS
VSS = 0 V; Tamb = 25 °C; CL = 50 pF; input transition times ≤ 20 ns
VDD
V
SYMBOL MIN. TYP. MAX.
Output transition
times
HIGH to LOW
LOW to HIGH
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
TYPICAL EXTRAPOLATION
FORMULA
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
January 1995
6
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