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RX-4045NB

型号:

RX-4045NB

品牌:

SEIKO[ SEIKO EPSON CORPORATION ]

页数:

2 页

PDF大小:

441 K

Real time clock module  
Epson Toyocom  
High-Stability Frequency  
SERIAL-INTERFACE REAL TIME CLOCK MODULE  
RX- 4045 SA NB  
/
Built-in 32.768 kHz crystal unit  
: Frequency adjusted for high accuracy.  
(± 5 ×10 6 / T  
a = +25 °C)  
Interface Type  
: 4-wire 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 : 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 32.768 kHz crystal unit  
Frequency adjusted for high accuracy  
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  
(with selectable detection threshold )  
Stop detection function  
TIME COUNTER  
(SEC,MIN,HOUR,WEEK,DAY,MONTH,YEAR)  
DIVIDER  
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 /  
Output  
RX 4045 SA  
RX 4045 NB  
Function  
Name  
N.C.  
22.  
21.  
20. N.C.  
The chip enabled input pin.  
1. CE  
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  
( built -in pull-down resistance )  
N.C.  
2. VDD  
3. (GND)  
4. TEST  
5. FOUT  
6. CLK  
7. DO  
At the " H " level, access becomes possible.  
The shift clock input pin for serial data transfer.  
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  
5.0  
32.768 kHz clock output pin with the output control  
function ( N-ch open drain )  
4.8  
10.  
/ INT  
FOUT Output  
8. DI  
9. GND  
High impedance at the time of output off.  
±
1.3 0.1  
9. N.C.  
8. N.C.  
/ INT  
Output  
Interrupt output ( N-ch open drain )  
Used by the manufacturer for testing.  
(Do not connect externally.)  
Connected to a positive power supply.  
Connected to a ground.  
10.  
/ INT  
±
0.2  
7.4  
± 0.2  
5.0  
TEST  
11. N.C.  
SOP 14 pin  
VDD  
SON 22 pin  
GND  
Metal may be exposed on the top or bottom of this product. This will not affect any quality, reliability or electrical spec.  
Specifications (characteristics)  
Refer to application manual for details.  
!
!
Current consumption characteristics  
Recommended Operating Conditions  
Ta = 40 °C to +85 °C  
Symbol  
Item  
Condition  
Min.  
Typ.  
Max. Unit  
Item  
Symbol  
Condition  
Min.  
Typ.  
Max.  
Unit  
DD  
V
Power voltage  
Clock voltage  
Operating  
3.0  
3.0  
5.5  
5.5  
V
V
1.7  
DD  
= 5 V  
V
V
0.60  
0.48  
1.80  
µA  
1.20  
CLK  
V
CE = GND  
1.15  
BK  
I
output OFF  
(Hi-z)  
FOUT ;  
OPR  
T
°
-40  
+25  
+85  
C
DD  
= 3 V  
temperature  
Current  
Consumption  
!
Frequency characteristics  
CE = GND  
32.768 kHz  
DD  
= 3 V  
V
32k  
I
0.65  
2.00  
µA  
Item  
Symbol  
Condition  
Rating  
AA: 5  
AC: 0  
Unit  
FOUT ;  
output ON  
1)  
a
±
±
T
= +25°C  
5
5
Frequency  
tolerance  
6
6
×
f / f  
10  
s
2)  
DD  
a
DD  
a
V
= 3.0 V  
!
Power supply detection voltage  
Ta = 30 °C to +70 °C  
Typ. Max. Unit  
Oscillation  
T
= +25 °C  
STA  
t
1 Max.  
start-up time  
V
T
= 2.0 V  
Item  
Symbol  
Condition  
Min.  
1.90  
1.15  
Frequency / voltage  
characteristics  
= +25 °C  
±
×
f / V  
1 Max.  
10  
DD  
V
= 2.0 V to 5.5 V  
DETH  
DD  
V
High-voltage mode  
Low-voltage mode  
V
pin  
pin  
2.10  
1.30  
2.30  
V
V
1) 2) Equivalent to 13 seconds of monthly deviation (excluding offset.)  
DETL  
DD  
V
V
1.45  
http://www.epsontoyocom.co.jp  
“Quartz + MEMS” EPSON TOYOCOM  
In order to meet customer needs in a rapidly advancing digital,  
broadband and ubiquitous society, we are committed to offering  
products that are one step ahead of the market and a rank above  
the rest in quality. To achieve our goals, we follow a “3D (three  
device) strategy” designed to drive both horizontal and vertical  
growth. We will to grow our three device categories of “Timing  
Devices”, ”Sensing Devices” and “Optical Devices”, and expand  
vertical growth through a combination of products from these  
categories.  
Quartz devices 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  
“Digital Convergence” solutions to problems arising with products  
for consumer use, such as, core network systems and automotive  
systems.  
A Quartz MEMS is any high added value quartz device that exploits the  
characteristics of quartz crystal material but that is produced using MEMS  
(micro-electro-mechanical system) processing technology.  
Market needs are advancing faster than previously imagined toward  
smaller, more stable crystal products, but we will stay ahead of the curve  
by rolling out products that exceed market speed and quality  
requirements. We want to further accelerate the 3D strategy by QMEMS.  
PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM  
CONFORMING TO INTERNATIONAL STANDARDS  
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.  
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  
In order provide high quality and reliable products and services than meet customer needs,  
Epson Toyocom 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.  
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 the automobile industry.  
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 Epson Toyocom.  
The information, applied circuitry, programming, usage, etc., written in this material is intended for reference only. Epson Toyocom 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 on 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 license from the Ministry of International Trade and Industry or other  
approval from another government agency.  
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 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 codes and markings will remain as previously identified prior to the merger.  
Due to the on-going strategy of gradual unification of part numbers, please review product codes and markings, 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 that will be user friendly.  
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