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RX-4803LC

型号:

RX-4803LC

品牌:

SEIKO[ SEIKO EPSON CORPORATION ]

页数:

2 页

PDF大小:

594 K

Real time clock module  
Product Number (Please contact us)  
REAL TIME CLOCK MODULE (SPI-Bus)  
Built-in 32.768 kHz-DTCXO, High Stability  
RX-4803SA  
RX-4803LC  
: X1B000131xxxx00  
: X1B000122xxxx00  
RX-4803LC UB : X1B000122000200  
RX - 4803 SA/LC  
Built in frequency adjusted 32.768 kHz crystal unit and DTCXO.  
1/100s resolution Time register  
Interface Type  
: 4-wire serial interface  
Interface voltage range  
: 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)  
The various functions include full calendar, alarm, timer, EVIN input.  
Epson prepared Linux driver for development.  
Actual size  
RX-4803SA  
RX-4803LC  
(http://www5.epsondevice.com/en/information/support/linux_rtc/)  
The registered trademark Linux® is used pursuant to a sublicense from LMI(Linux Mark Institute)  
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  
and  
DIVIDER  
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  
TIMER  
REGISTER  
CONTROLLER  
FOUT  
The various interrupt  
Timer Function can be set between 1/ 4096 second and  
4095 minutes.  
EVIN  
/ INT  
INTERRUPT  
CONTROLLER  
ALARM  
REGISTER  
Alarm Function can be set to day of week, day, hour, or minute.  
EVIN input.  
D I  
SYSTEM  
CONTROLLER  
and  
CONTROL  
REGISTER  
DO  
INTERFACE  
CIRCUIT  
Time synchronize function with 1PPS signal input  
Register compatibility: upper compatible with RX-4801.  
CLK  
CE  
*It is possible to use it by the terminal connection as  
32.768 kHz-DTCXO.  
Pin Function  
Terminal connection/External dimensions  
(Unit:mm)  
RX4803LC  
RX4803SA  
Signal Name  
I / O  
Function  
The chip enable input pin.  
The shift clock input pin for serial data transfer.  
The pin outputs the reference clock signal.  
( CMOS output )  
Use by the manufacture for testing.  
( Do not connect externally. RX-4803SA only.)  
Connected to a positive power supply  
The input pin for the FOUT output control.  
External event input.  
1. CE  
14. DI  
1. N.C.  
2. FOE  
3. VDD  
4. FOUT  
5. CLK  
6. CE  
12. EVIN  
CE  
CLK  
input  
input  
2. CLK  
3. FOUT  
4. N.C.  
5. TEST  
6. VDD  
7. FOE  
13. DO  
11. /INT  
10. GND  
9. T2(Vpp)  
8. DO  
12. T2(VPP)  
11. GND  
FOUT  
TEST  
Output  
input  
5.0  
2.4  
10.  
/INT  
VDD  
FOE  
EVIN  
/ INT  
GND  
-
9. EVIN  
8. N.C.  
input  
input  
7.40.2  
7. DI  
2.8  
SOP14 pin  
VSOJ12pin  
Output Interrupt output (N-ch. open drain).  
-
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.  
Connected to a ground  
Use by the manufacture for testing.  
( Do not connect externally.)  
*Stop using the glue  
T2(VPP)  
-
Any glue must never use it after soldering LC-package to a circuit board.This product has glass on the back side  
of a package.When glue invasions between circuit board side and glass side, then glass cracks by thermal  
DO  
D I  
Output The data output pin for serial data transfer.  
input The data input pin for serial data transfer.  
expansion of glue.In this case  
LC-package  
a
crystal oscillation stops.Consider glue abolition or glue do not touch to  
Specifications (characteristics)  
Refer to application manual for details.  
Electrical Characteristics  
32.768 kHz-DTCXO Frequency temperature characteristics (Example)  
Item  
Interface voltage  
Symbol  
Conditions  
Interface voltage  
Min.  
Typ.  
Max.  
Unit  
Frequency temperature characteristics  
VDD  
VTEM  
VCLK  
1.6  
2.2  
1.6  
3.0  
3.0  
3.0  
5.5  
5.5  
5.5  
V
V
V
10  
Temp. compensated Voltage  
Clock supply voltage  
Temp. compensated voltage  
-
5
32.768 kHz DTCXO  
0
-5  
Operating temperature  
TOPR  
No condensation  
-40  
+25  
+85  
ºC  
1  
UA  
Ta= -40 ºC to +85 ºC  
±3.4  
±5.0  
UB  
UC  
Ta=-40 ºC to +85 ºC  
Ta= -30 ºC to +70 ºC  
-10  
Stability  
f/f  
10-6  
2  
3  
-15  
Tuning fork X'tal  
AA  
Ta=+25 ºC  
5 ± 5.0  
0.75  
-20  
-25  
-30  
Backup Mode  
FOE = GND,  
/INT = VDD  
Current consumption (1)  
IDD1  
IDD2  
VDD = 5V  
VDD = 3V  
-
-
3.4  
2.1  
A  
Current consumption (2)  
0.75  
FOUT output : OFF  
-45 -35 -25 -15  
-5  
5
15  
25  
35  
45  
55  
65  
75  
85  
1)  
2)  
  
Equivalent to ±9 seconds of month deviation.  
Equivalent to ±13 seconds of month deviation.  
Temperature (ºC)  
3)  
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.)  
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 data, circuitry, software, usage, etc. written in this material is intended for reference only. Seiko Epson  
does not assume any liability for the occurrence of customer damage or 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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