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RX-4045NBAC

型号:

RX-4045NBAC

品牌:

SEIKO[ SEIKO EPSON CORPORATION ]

页数:

2 页

PDF大小:

302 K

Real time clock module  
High-Stability Frequency  
SERIAL-INTERFACE REAL TIME CLOCK MODULE  
RX- 4045 SA NB  
/
Built-in 32.768 kHz quartz oscillator : Frequency adjusted for high accuracy.  
5 ×10 6 / T  
= +25 °C)  
a
(
Interface Type  
: 4 wire high accuracy serial interface  
: 1.7 V to 5.5 V  
Operating voltage range  
Wide Timekeeper voltage range  
Various detection Functions  
Low backup current  
: 1.15 V to 5.5 V  
: Oscillation stop detection function etc.  
: 0.48 µA / 3 V (Typ.)  
Actual size  
RX-4045SA  
32.768 kHz clock frequency output : Open drain output  
Function of time and calendar, the various detection function,  
and interrupt function etc.  
RX-4045NB  
Lead(Pb)-free  
:
Contains high melting temperature type solder (Pb85 %)  
exempted by RoHS directive.  
Block diagram  
Overview  
Features built-in 32.768 kHz quartz oscillator  
Frequency adjusted for high precision  
ALARM_W REGISTER  
(MIN,HOUR, WEEK)  
6  
FOUT  
32kHz  
COMPARATOR_W  
COMPARATOR_D  
(
5 ×10 /T  
a
= +25 °C )  
DD  
V
OUTPUT  
CONTROL  
( Equivalent to 13 seconds of monthly deviation )  
VOLTAGE  
DETECT  
ALARM_D REGISTER  
(MIN,HOUR)  
The various detection Function  
Power supply voltage monitoring function  
DIVIDER  
TIME COUNTER  
(SEC,MIN,HOUR,WEEK,DAY,MONTH,YEAR)  
(with selectable detection threshold )  
Stop detection function  
DIV  
CORREC  
-TION  
OSC  
GND  
CLK  
Power-on reset detection function  
ADDRESS  
ADDRESS  
Equipped with alarm and timer  
OSC  
DETECT  
I/O  
CONTROL  
REGISTER  
DECODER  
D I  
DO  
Timer function produces a periodic interruption signal.  
As for the Alarm function an optional combination is  
produced. (Date of the week , time , minute)  
/INT  
CE  
INTERRUPT CONTROL  
SHIFT REGISTER  
Pin function  
Terminal connection / External dimensions  
(Unit
:
mm)  
Signal  
Input /  
RX 4045 SA  
RX 4045 NB  
Function  
Name Output  
N.C.  
22.  
The chip enabled input pin.  
1. CE  
2.  
1. N.C.  
2. CLK  
3. FOUT  
4. N.C.  
5. TEST  
14. N.C.  
13. DO  
12. DI  
CE  
Input  
( built -in pull-down resistance )  
N.C.  
V
DD  
21.  
At the " H " level, access becomes possible.  
The shift clock input pin for serial data transfer.  
3. (GND)  
4. TEST  
5. FOUT  
6. CLK  
7. DO  
20. N.C.  
CLK  
DI  
Input  
Input  
N.C.  
N.C.  
N.C.  
N.C.  
N.C.  
N.C.  
19.  
18.  
17.  
16.  
15.  
14.  
13.  
12.  
The data input pin for serial data transfer.  
DO  
Output  
The data output pin for serial data transfer.  
11. GND  
10. / INT  
9. N.C.  
8. N.C.  
5.0  
FOUT pin is 32.768 kHz clock output pin  
4.8  
that output control is possible.( N-ch open drain )  
FOUT Output  
High impedance at the time of output off.  
8. DI  
9. GND  
1.3  
0.1  
6.  
V
DD  
/ INT  
Output  
Interrupt output ( N-ch open drain )  
Used by the manufacture for testing.  
(Do not connect externally.)  
Connected to a positive power supply.  
Connected to a ground.  
7.4 0.2  
10.  
/ INT  
TEST  
7. CE  
5.0  
0.2  
11. N.C.  
VDD  
SOP 14 pin  
SON 22 pin  
GND  
Metal may be exposed on the top or bottom of this product. This w ill not affect any quality, reliability or electrical spec.  
Specifications (characteristics)  
Refer to application manual for details.  
„
„
− °  
°
Recommended Operating Conditions  
DC characteristics  
a
T =  
40 C to +85 C  
Symbol  
Item  
Item  
Symbol  
Condition  
Min.  
Typ.  
Max.  
Unit  
Condition  
Min.  
Typ.  
Max.  
1.80  
Unit  
µA  
DD  
V
Power voltage  
Clock voltage  
Operating  
1.7  
3.0  
3.0  
5.5  
5.5  
V
V
DD  
= 5 V  
V
V
0.60  
CLK  
V
1.15  
CE = GND  
FOUT ;  
BK  
I
output OFF  
(Hi-z)  
°
C
TOPR  
-40  
+25  
+85  
DD  
= 3 V  
temperature  
Current  
Consumption  
0.48  
0.65  
1.20  
2.00  
„
Frequency characteristics  
CE = GND  
32.768 kHz  
V
DD  
= 3 V  
I
32k  
µA  
Item  
Symbol  
Condition  
Rating  
AA: 5  
AC: 0  
Unit  
FOUT ;  
output ON  
1)  
Frequency  
tolerance  
T
a
= +25°C  
5
5
6
6
×
f / f  
10  
s
2)  
DD  
V
= 3.0 V  
„
°
°
Power supply detection voltage  
a
=
T
30 C to +70  
C
Oscillation  
a
= +25 °C  
T
tSTA  
1 Max.  
start-up time  
DD  
V
= 2.0 V  
Item  
Symbol  
Condition  
Min.  
1.90  
1.15  
Typ.  
Max.  
2.30  
1.45  
Unit  
Frequency / voltage  
characteristics  
a
= +25 °C  
T
×
f / V  
1 Max.  
10  
V
DD = 2.0 V to 5.5 V  
DETH  
V
DD  
V
High-voltage mode  
Low-voltage mode  
pin  
2.10  
1.30  
V
V
1) 2) Equivalent to 13 seconds of monthly deviation (excluding offset.)  
V
DETL  
VDD pin  
http://www.epsontoyocom.co.jp  
108  
End to End EPSON TOYOCOM  
The development of our ubiquitous network society has caused  
customers.  
a diversification of applications and has increased the demand for  
high-level quartz devices in terms of quality, quantity, and  
function.  
Quartz device have become crucial in the network environment  
where products are increasingly intended for broadband,  
ubiquitous applications and where various types of terminals can  
transfer information almost immediately via LAN and WAN on a  
global scale. EPSON TOYOCOM CORPORATION addresses  
every single aspect within a network environment. The new  
corporation offers “end-to-end” solutions to problems arising with  
products for consumer use, such as core network systems and  
automotive systems.  
The Quartz Device Operations Division of SEIKO EPSON  
CORPORATION (EPSON)and TOYO COMMUNICATION  
EQUIPMENT CO.,LTD.(TOYOCOM) were integrated on October  
1,2005 to establish a new company, EPSON TOYOCOM  
CORPORATION, to meet these market and customer demands.  
Each company contributes its own strength; EPSON holds a  
strong presence in consumer products and TOYOCOM is strong  
in industrial products. The consolidation of these two companies  
in a new company that provides advanced expertise with a wide  
range of products for terminals and infrastructure to our  
PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM  
CONFORMING INTERNATIONAL STANDARD  
At EPSON TOYOCOM, all environmental initiatives operate under the Plan-Do-Check-Action(PDCA) cycle designed to achieve continuous  
improvements. The environmental management system (EMS) operates under the ISO 14001 environmental management standard.  
In May 2001, all of our major manufacturing and non-manufacturing sites, in Japan and overseas, completed the acquisition of ISO 14001 certification.  
In the future, new group companies will be expected to acquire the certification around the third year of operations.  
ISO 14000 is an international standard for environmental  
management that was established by the International  
Standards Organization in 1996 against the background  
of growing concern regarding global warming, destruction  
of the ozone layer, and global deforestation.  
WORKING FOR HIGH QUALITY  
EPSON TOYOCOM quickly began working to aquire company-wide ISO 9000 series certification, and has acquired ISO 9001 or ISO 9002 certification  
with all targeted products manufactured in Japanese and overseas plants.  
The Quartz Device Operations Division (Ina Japan,EPM and SZE) have acquired QS-9000 certification, which are of higher Level.  
Also QS-9000 and TS 16949 certification, which is of higher level, has been acquired.  
QS-9000 is an enhanced standard for quality  
assurance systems formulated by leading  
U.S.automobile manufacturers based on  
the international ISO 9000 series.  
ISO/TS 16949 is a global standard based on  
QS-9000, a severe standard corresponding to  
the requirements from automobile industry.  
Notice  
The material is subject to change without notice.  
Any part of this material may not be reproduced or duplicated in any form or any means without the written permission of EPSON TOYOCOM.  
The information, applied circuit, program, usage etc., written in this material is just for reference. EPSON TOYOCOM does not assume any liability for  
the occurrence of infringing any patent or copyright of a third party. This material does not authorize the licensing for any patent or intellectual  
copyrights.  
Any product described in this material may contain technology or the subject relating to strategic products under the control of the Foreign  
Exchange and Foreign Trade Law of Japan and may require an export licence from the Ministry of International Trade and industry or other  
approval from another government agency.  
These products are intended for general use in electronic equipment. When using them in specific applications that require extremely high reliability  
such as applications stated below, it is required to obtain the permission from EPSON TOYOCOM in advance.  
/ Space equipment (artificial satellites, rockets, etc) / Transportation vehicles and related (automobiles, aircraft, trains, vessels, etc)  
/ Medical instruments to sustain life / Submarine transmitters / Power stations and related / Fire work equipment and security equipment  
/ traffic control equipment / and others requiring equivalent reliability.  
In this new crystal master for EPSON TOYOCOM, product code and marking will still remain as previously identified prior to the merger.  
Due to the on going strategy of gradual unification of part numbers, please review product code and marking as they will change during the course of  
the coming months.  
We apologize for the inconvenience, but we will eventually have a unified part numbering system for Epson Toyocom which will be user friendly.  
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