5041 series
AC Characteristics
Clock output characteristics (5041A1× to A6×, Q pin)
V
DD
=
2.25V to 3.63V, V
SS
=
0V, Ta
= −40°C
to +85°C, C
LOUT
= 15pF unless otherwise noted.
Parameter
Output rise time
Output fall time
Output duty cycle
*1
Output disable delay time
Symbol
t
r
t
f
Duty
t
OD
Conditions
Measurement circuit 1, 0.1V
DD
→
0.9V
DD
Measurement circuit 1, 0.9V
DD
→
0.1V
DD
Measurement circuit 1, threshold voltage 0.5V
DD
,
Duty = Tw/T
×
100
Measurement circuit 2, INHN
=
HIGH
→
LOW
Rating
MIN
–
–
45
–
TYP
–
–
50
–
MAX
4.5
4.5
55
100
Unit
ns
ns
%
ns
*1. This parameter is measured using the NPC’s standard crystal. Note that the values will vary with the crystal characteristics used or mounting
conditions.
Clock output characteristics (5041B1A to B6A, Q pin)
V
DD
=
1.60V to 2.25V, V
SS
=
0V, Ta
= −40°C
to +85°C, C
LOUT
= 15pF unless otherwise noted.
Parameter
Output rise time
Output fall time
Output duty cycle
*2
Output disable delay time
Symbol
t
r
t
f
Duty
t
OD
Conditions
Measurement circuit 1, 0.1V
DD
→
0.9V
DD
Measurement circuit 1, 0.9V
DD
→
0.1V
DD
Measurement circuit 1, threshold voltage 0.5V
DD
,
Duty = Tw/T
×
100
Measurement circuit 2, INHN
=
HIGH
→
LOW
Rating
*1
MIN
–
–
(45)
–
TYP
–
–
(50)
–
MAX
5
5
(55)
100
Unit
ns
ns
%
ns
*1. Values in parentheses ( ) are provisional only.
*2. This parameter is measured using the NPC’s standard crystal. Note that the values will vary with the crystal characteristics used or mounting
conditions.
0.9V
DD
0.9V
DD
Q
0.1V
DD
T
W
T
0.1V
DD
DUTY measurement
voltage (0.5V
DD
)
DUTY= T
W
/ T
100 (%)
t
r
t
f
Figure 1. Output switching waveform
INHN
0.5V
DD
0.5V
DD
t
r =
t
f = 2ns
(10% to 90%)
t
OD
0.1V
t
OSC
*1
0.5V
DD
0.1V
Q
Normal output
Hi-Z
Low
Normal output
*1. t
OSC
is oscillator start-up time. It is interval of time until the oscillation is stabilized and varies with the crystal used.
Please contact us for further details.
Figure 2. Output disable timing chart
SEIKO NPC CORPORATION—7
NPC [ NIPPON PRECISION CIRCUITS INC ]
