HD74HC564, HD74HC574
Switching Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Ta = 25°C
Item
Maximum clock
frequency
Propagation delay
time
Output enable
time
Output disable
time
Setup time
Symbol V
CC
(V)
f
max
2.0
4.5
6.0
t
PLH
t
PHL
t
ZH
t
ZL
t
HZ
t
LZ
t
su
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
Hold time
t
h
2.0
4.5
6.0
2.0
4.5
6.0
Output rise/fall
time
Input capacitance
t
TLH
t
THL
Cin
2.0
4.5
6.0
—
Min
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
5
5
80
16
14
—
—
—
—
Typ
—
—
—
—
13
—
—
13
—
—
15
—
—
1
—
—
0
—
—
4
—
—
4
—
5
Max
6
30
35
155
31
26
150
30
26
150
30
26
100
20
17
—
—
—
—
—
—
60
12
10
10
Ta = –40 to +85°C
Min
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5
5
5
100
20
17
—
—
—
—
Max
5
24
28
195
39
33
190
38
33
190
38
33
125
25
21
—
—
—
—
—
—
75
15
13
10
ns
ns
ns
ns
Clock to output
Unit
MHz
Test Conditions
ns
ns
Pulse width
t
w
ns
pF
Test Circuit
V
CC
V
CC
Output
See Function Table
Input
Pulse Generator
Z
out
= 50
Ω
Input
Pulse Generator
Z
out
= 50
Ω
OC
1Q to 8Q
or
1Q to 8Q
1 k
Ω
C
L
=
50 pF
S1
OPEN
GND
V
CC
1D to 8D
TEST
t
PLH
/ t
PHL
t
ZH
/ t
HZ
t
ZL
/ t
LZ
S1
OPEN
GND
V
CC
Clock
Note : 1. C
L
includes probe and jig capacitance.
Rev.2.00 Mar 30, 2006 page 6 of 9
RENESAS [ RENESAS TECHNOLOGY CORP ]
