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RX-4045SA:AC-0

型号:

RX-4045SA:AC-0

品牌:

SEIKO[ SEIKO EPSON CORPORATION ]

页数:

2 页

PDF大小:

256 K

Real time clock module  
Product Number (Please contact us)  
RX-4045SA : Q41404552xxxx00  
RX-4045NB : Q41404592xxxx00  
REAL TIME CLOCK MODULE (SPI-Bus)  
High-Stability Frequency  
RX-4045SA/NB  
Built-in 32.768 kHz crystal unit: Frequency adjusted for high accuracy.  
(5106/Ta=+25C)  
Interface Type  
: 4-wire serial interface  
: 1.7Vto5.5V  
Operating voltage range  
Wide Timekeeper voltage range  
Various detection Functions  
Low backup current  
: 1.15Vto5.5V  
: Oscillation stop detection function etc.  
: 0.48A/3V(Typ.)  
Actual size  
RX-4045SA  
32.768 kHz clock frequency output : N-ch open drain output  
Function of time and calendar, the various detection function,  
and interrupt function etc.  
RX-4045NB  
Block diagram  
Overview  
 Features built-in 32.768kHz crystal unit  
Frequency adjusted forhigh accuracy  
ALARM_W REGISTER  
(MIN,HOUR, WEEK)  
(5106 /Ta=+25C)  
FOUT  
32kHz  
OUTPUT  
CONTROL  
COMPARATOR_W  
COMPARATOR_D  
VDD  
(Equivalent to 13 seconds of monthly deviation)  
VOLTAGE  
DETECT  
ALARM_D REGISTER  
(MIN,HOUR)  
 The various detection Function  
Power supply voltage monitoring function  
(with selectable detection threshold)  
Stop detection function  
DIVIDER  
TIME COUNTER  
CORREC  
-TION  
DIV  
OSC  
(SEC,MIN,HOUR,WEEK,DAY,MONTH,YEAR)  
GND  
CLK  
Power-on reset detection function  
ADDRESS  
ADDRESS  
OSC  
DETECT  
Equipped with alarm and timer  
I/O  
CONTROL  
REGISTER  
DECODER  
DI  
Timer function produces a periodic interruption signal.  
As for the Alarm function an optional combination is  
produced. (Date of the week , time , minute)  
DO  
/INT  
CE  
INTERRUPT CONTROL  
SHIFT REGISTER  
Pin function  
Terminal connection/External dimensions  
(Unit:mm)  
Signal  
Name Output  
Input /  
RX4045SA  
RX4045NB  
Function  
N.C.  
N.C.  
1. CE  
22.  
21.  
The chip enabled input pin.  
( built -in pull-down resistance )  
At the "H"level, access becomes possible.  
1. N.C.  
2. CLK  
3. FOUT  
4. N.C.  
5. TEST  
6. VDD  
7. CE  
14. N.C.  
13. DO  
12. DI  
CE  
Input  
2. VDD  
3. (GND)  
4. TEST  
5. FOUT  
6. CLK  
7. DO  
20. N.C.  
CLK  
DI  
Input  
Input  
The shift clock input pin for serial data transfer.  
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.  
The data output pin for serial data transfer.  
11. GND  
DO  
Output  
5.0  
4.8  
32.768kHzclock output pin with the output control  
function (N-ch open drain)  
High impedance at the time of output off.  
10.  
/INT  
FOUT Output  
8. DI  
1.30.1  
9. N.C.  
8. N.C.  
9. GND  
/ INT  
Output  
Interrupt output (N-ch open drain)  
10.  
/INT  
7.40.2  
Used by the manufacturer for testing.  
(Do not connect externally.)  
5.00.2  
TEST  
  
11. N.C.  
SOP14 pin  
VDD  
Connected to a positive power supply.  
SON22 pin  
GND  
Connected to a ground.  
 The metal case inside of the molding compound may be exposed on the top or bottom of this product.  
This purely cosmetic and does not have any effect on quality, reliability or electrical specs.  
Specifications (characteristics)  
 Refer to application manual for details.  
Recommended Operating Conditions  
Current consumption characteristics  
Ta=-40Cto+85C  
Symbol  
Item  
Symbol  
Conditions  
Min.  
Typ.  
Max.  
Unit  
Item  
Conditions  
Min.  
-
Typ.  
Max. Unit  
Power voltage  
Clock voltage  
Operating  
VDD  
VCLK  
3.0  
3.0  
5.5  
5.5  
V
V
1.7  
1.15  
VDD  
=5V  
0.60  
0.48  
1.80  
µA  
CE=GND  
IBK  
FOUT;output OFF  
TOPR  
-40  
+25  
+85  
C  
VDD  
=3V  
temperature  
(Hi-z)  
Current  
Consumption  
-
-
1.20  
Frequency characteristics  
CE=GND  
VDD  
=3V  
I32k  
0.65  
2.00  
µA  
Item  
Symbol  
Conditions  
Rating  
AA: 551)  
AC: 052)  
Unit  
FOUT;32.768kHz  
output ON  
Ta=+25°C  
Frequency  
tolerance  
Oscillation  
6
6
f/f  
10  
VDD=3.0V  
Ta=+25°C  
VDD=2.0V  
Ta=+25°C  
Power supply detection voltage  
Ta=-30Cto+70C  
Typ. Max. Unit  
s
1Max.  
tSTA  
start-up time  
Item  
Symbol  
Conditions  
Min.  
1.90  
1.15  
Frequency / voltage  
characteristics  
f/V  
1Max.  
10  
VDD=2.0Vto5.5V  
High-voltage mode  
Low-voltage mode  
VDETH  
VDD pin  
2.10  
1.30  
2.30  
1.45  
V
V
1)2) Equivalent to 13 seconds of monthly deviation (excluding offset.)  
VDETL  
VDD pin  
PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM  
CONFORMING TO INTERNATIONAL STANDARDS  
At Seiko Epson, all environmental initiatives operate under the  
Plan-Do-Check-Action (PDCA) cycle designed to achieve continuous  
ISO 14000 is an international standard for environmental  
improvements. The environmental management system (EMS)  
operates under the ISO 14001 environmental management standard.  
All of our major manufacturing and non-manufacturing sites, in  
Japan and overseas, completed the acquisition of ISO 14001  
certification.  
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  
In order provide high quality and reliable products and services  
than meet customer needs,  
ISO/TS16949 is the international standard that added the  
sector-specific supplemental requirements for automotive  
industry based on ISO9001.  
Seiko Epson made early efforts towards obtaining ISO9000 series  
certification and has acquired ISO9001 for all business  
establishments in Japan and abroad. We have also acquired ISO/TS  
16949 certification that is requested strongly by major automotive  
manufacturers as standard.  
Explanation of the mark that are using it for the catalog  
Pb free.  
Complies with EU RoHS directive.  
*About the products without the Pb-free mark.  
Contains Pb in products exempted by EU RoHS directive.  
(Contains Pb in sealing glass, high melting temperature type solder or other.)  
Designed for automotive applications such as Car Multimedia, Body Electronics, Remote Keyless Entry etc.  
Designed for automotive applications related to driving safety (Engine Control Unit, Air Bag, ESC etc ).  
Notice  
This 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 Seiko Epson.  
The information about applied circuitry, software, usage, etc. written in this material is intended for reference only. Seiko Epson does  
not assume any liability for the occurrence of infringing on any patent or copyright of a third party. This material does not authorize the  
licensing for any patent or intellectual copyrights.  
When exporting the products or technology described in this material, you should comply with the applicable export control laws and  
regulations and follow the procedures required by such laws and regulations.  
You are requested not to use the products (and any technical information furnished, if any) for the development and/or manufacture of  
weapon of mass destruction or for other military purposes. You are also requested that you would not make the products available to  
any third party who may use the products for such prohibited purposes.  
These products are intended for general use in electronic equipment. When using them in specific applications that require extremely  
high reliability, such as the applications stated below, you must obtain permission from Seiko Epson 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.  
All brands or product names mentioned herein are trademarks and/or registered trademarks of their respective.  
Seiko Epson Corporation  
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