December 1990
8
Philips Semiconductors
Product specication
8-bit shift register with input ip-ops
74HC/HCT597
tsu
set-up time
DS to SHCP
60
12
10
11
4
3
75
15
13
90
18
15
ns
2.0
4.5
6.0
Fig.11
tsu
set-up time
PL to SHCP
60
12
10
11
4
3
75
15
13
90
18
15
ns
2.0
4.5
6.0
Fig.12
th
hold time
Dn to STCP
5
3
1
5
ns
2.0
4.5
6.0
Fig.11
th
hold time
PL, DS to SHCP
5
6
2
5
ns
2.0
4.5
6.0
Fig.11
fmax
maximum pulse frequency
SHCP
6.0
30
35
29
87
104
4.8
24
28
4.0
20
24
MHz
2.0
4.5
6.0
Fig.7
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HC
VCC
(V)
WAVEFORMS
+25
40 to +85 40 to +125
min.
typ.
max. min. max. min.
max.