HD74HC590
Test Circuit
V
CC
V
CC
Output
1 k
Ω
Input
Q
A
to Q
H
S1
OPEN
GND
C
L
= 50 pF
Output
RCO
1 k
Ω
S1
V
CC
OPEN
GND
C
L
= 50 pF
TEST
t
PLH
/ t
PHL
t
ZH
/ t
HZ
t
ZL
/ t
LZ
V
CC
S1
OPEN
GND
V
CC
Pulse Generator
Z
out
= 50
Ω
Input
Pulse Generator
Z
out
= 50
Ω
See Function Table
CCKEN
CCK
CCLR
RCK
G
Note : 1. C
L
includes probe and jig capacitance.
Waveforms
•
Waveform – 1 (CCK to
RCO)
tr
Input CCK
10 %
90 %
50 % 50 %
tf
V
CC
50 %
10 %
tw(H)
t
PHL
tw(L)
t
PLH
90 %
0V
Output
RCO
90 %
50 %
10 %
50 %
10 %
V
OH
V
OL
t
THL
t
TLH
Note : 1. Input waveform : PRR
≤
1 MHz, duty cycle 50%, t
r
≤
6 ns, t
f
≤
6 ns
•
Waveform – 2 (CCLR to
RCO, CCLR
to CCK)
t
f
Input D
90 %
50 %
10 %
50 %
10 %
t
r
90 %
V
CC
0V
t
W
t
PLH
Output
RCO
10 %
90 %
50 %
V
OH
V
OL
90 %
t
TLH
Output CCK
t
rem
V
OH
V
OL
50 %
10 %
t
TLH
Note : 1. Input waveform : PRR
≤
1 MHz, duty cycle 50%, t
r
≤
6 ns, t
f
≤
6 ns
Rev.2.00 Mar 30, 2006 page 6 of 9
RENESAS [ RENESAS TECHNOLOGY CORP ]
