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RX-8803LC:UB-3

型号:

RX-8803LC:UB-3

品牌:

SEIKO[ SEIKO EPSON CORPORATION ]

页数:

2 页

PDF大小:

305 K

Real time clock module  
Product Number (Please contact us)  
RX-8803SA: X1B000152xxxx00  
RX-8803LC: X1B000142xxxx00  
Built-in 32.768 kHz-DTCXO, High Stability  
I2C-Bus INTERFACE REAL TIME CLOCK MODULE  
RX - 8803 SA/LC  
Built in frequency adjusted 32.768 kHz crystal unit and DTCXO.  
1/100s resolution Time register  
Interface Type  
Interface voltage range  
: I2C-Bus interface (400kHz)  
: 1.6 V to 5.5 V  
Temp. compensated voltage range : 2.2 V to 5.5 V  
Clock supply voltage range : 1.6 V to 5.5 V  
Selectable clock output (32.768 kHz, 1024 Hz, 1 Hz)  
Actual size  
RX-8803SA  
RX-8803LC  
The various functions include full calendar, alarm, timer, EVIN input.  
*The I2C-BUS is a trademark of NXP Semiconductors.  
Block diagram  
Overview  
High Stability  
UA ± 3.4 x 10-6  
/ -40 ºC to +85 ºC  
32.768 kHz  
( Equivalent to 9 seconds of month deviation )  
UB ± 5.0 x 10-6  
-40 ºC to +85 ºC  
( Equivalent to 13 seconds of month deviation )  
UC -30 ºC to +70 ºC  
± 5.0 x 10-6  
AA (+5 ± 5.0) x 10-6  
+25 ºC  
/
32kHz  
DTCXO  
/
/
High Resolution: 1/100s Time register with capture buffer  
CLOCK  
DIVIDER  
and  
CALENDAR  
32.768 kHz frequency output function  
FOUT pin output (C-MOS output), CL=30 pF  
Output selectable: 32.768 kHz, 1024 Hz, 1 Hz  
FOE  
FOUT  
CONTROLLER  
TIMER  
FOUT  
REGISTER  
The various interrupt  
Timer Function can be set between 1/ 4096 second and  
4095 minutes.  
EVIN  
/ INT  
ALARM  
REGISTER  
INTERRUPT  
CONTROLLER  
Alarm Function can be set to day of week, day, hour, or minute.  
EVIN input.  
CONTROL  
REGISTER  
and  
SDA  
SCL  
INTERFACE  
CIRCUIT  
Time synchronize function with 1PPS signal input  
Register compatibility: upper compatible with RX-8801.  
SYSTEM  
CONTROLLER  
*It is possible to use it by the terminal connection as  
32.768 kHz-DTCXO.  
Pin Function  
Terminal connection/External dimensions  
(Unit:mm)  
Signal Name  
I / O  
Function  
Use by the manufacture for testing.  
( Do not connect externally.)  
Serial clock input pin.  
The pin outputs the reference clock signal.  
( CMOS output )  
Use by the manufacture for testing.  
( Do not connect externally. RX-8803SA only.)  
Connected to a positive power supply  
The input pin for the FOUT output control.  
External event input.  
RX8803SA  
RX8803LC  
T1(CE)  
SCL  
input  
input  
1. T1(CE)  
2. SCL  
3. FOUT  
4. N.C.  
5. TEST  
6. VDD  
14. N.C.  
13. SDA  
12. T2(VPP)  
11. GND  
10. /INT  
9. EVIN  
8. N.C.  
1. N.C.  
2. FOE  
3. VDD  
12. EVIN  
11. /INT  
10. GND  
9. T2(Vpp)  
8. SDA  
FOUT  
Output  
TEST  
input  
5.0  
2.4  
4. FOUT  
5. SCL  
6. T1(CE)  
VDD  
FOE  
EVIN  
/ INT  
GND  
-
input  
input  
7.40.2  
7. N.C.  
7. FOE  
2.8  
Output Interrupt output (N-ch. open drain).  
SOP14 pin  
-
Connected to a ground  
VSOJ12pin  
Use by the manufacture for testing.  
( Do not connect externally.)  
Data input and output pin.  
Metal may be exposed on the top or bottom of this product.  
This will not affect any quality, reliability or electrical spec.  
T2(VPP)  
SDA  
-
I/O  
Specifications (characteristics)  
Refer to application manual for details.  
Electrical Characteristics  
32.768 kHz-DTCXO Frequency temperature characteristics (Example)  
Item  
Symbol  
VDD  
Condition  
Interface voltage  
Min.  
1.6  
Typ.  
3.0  
Max.  
5.5  
Unit  
V
Frequency temperature characteristics  
Operating voltage  
10  
Temp. compensated  
Voltage  
VTEM  
Temp. compensated voltage  
2.2  
3.0  
5.5  
V
5
32.768 kHz DTCXO  
0
-5  
Clock supply voltage  
Operating temperature  
VCLK  
TOPR  
-
-
1.6  
3.0  
5.5  
V
+25  
+85  
ºC  
40  
1  
-10  
UA  
Ta= -40 ºC to +85 ºC  
±3.4  
±5.0  
UB  
UC  
AA  
Ta=-40 ºC to +85 ºC  
Ta= -30 ºC to +70 ºC  
Ta=+25 ºC  
-15  
6  
2  
Stability  
f/f  
10  
Tuning fork X'tal  
-20  
-25  
-30  
3  
5 ±5.0  
Current consumption (1)  
Current consumption (2)  
Backup Mode  
FOE = GND,  
/INT = VDD  
IDD1  
IDD2  
VDD = 5V  
VDD = 3V  
-
-
0.75  
3.4  
2.1  
A  
-45 -35 -25 -15  
-5  
5
15  
25  
35  
45  
55  
65  
75  
85  
0.75  
FOUT output : OFF  
Temperature (ºC)  
1)  
2)3)  
  
Equivalent to 9 seconds of month deviation.  
Equivalent to 13 seconds of month deviation. ( excluding offset )  
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.)  
The products have been designed for high reliability applications such as Automotive.  
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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