
RTC
4574 SA / JE / NB
Page - 3
MQ302-07 SAJENB01
4. External Dimensions / Marking Layout
RTC - 4574 SA ( SOP - 14 pin )
External dimensions
Recommended soldering pattern
0.6
0.15
0
° - 10°
1.4
5.4
1.27
× 6 = 7.62
0.7
Unit : mm
1.27
1.2
0.05
Min.
3.2 ± 0.1
0.35
10.1 ± 0.2
5.
0
7.
4
±
0.
2
#14
#8
#7
#1
R4574
E A123B
The cylinder of the crystal oscillator can be seen in this area ( front ),
but it has no affect on the performance of the device.
RTC - 4574 JE ( VSOJ - 20 pin )
External dimensions
Recommended soldering pattern
0.65
0.22
1.3
1.5 Max.
0.12
0.1
0 Min.
6.
0
±
0.
2
(0.75)
Unit : mm
1.5
3.8
1.5
0.65 × 9 = 5.85
0.3
0.35
0.65
5.4
7.0 ± 0.3
# 1
#20
#11
#10
R4574
E
A123B
The cylinder of the liquid crystal oscillator can be seen in this area ( back and front ),
but it has no affect on the performance of the device.
RTC - 4574 NB ( SON - 22 pin )
External dimensions
Soldering pattern
1.
3
±
0.
1
0
.12
5
0.1
Unit : mm
6.3 Max.
5.
0
±
0.2
4.8
0.5
0.2
#1
#22
#14
#11
#14
(0
.3
)
#11
#1
#22
0.8
P 0.5
× 10 = 5.0
1.
4
0.5
5.25
0.25
0.7
0.75
0.25
0.8
0.7
4.0
0.7
0.
7
#1
#11
#22
#14
E A123B
R4574
1)
The cylinder of the crystal oscillator can be seen in this area ( back and front ),
but it has no affect on the performance of the device.
2)
In this area, At a parts side of electronic base, you must not do layout any signal line.