Real time clock module
Epson Toyocom
Product Number (Please contact us)
RTC-9701JE : Q41970171000100
Built-in EEPROM
SERIAL-INTER FACE REA L TIME C LOCK MODULE
RTC - 9701 JE
•
Built in frequency adjusted 32.768
•
Interface Type
•
Operating voltage range
•
Wide Timekeeper voltage range
•
Include EEPROM
•
Various detection Functions
kHz crystal unit.
:
4-wire serial interface
:
2.7 V to 3.6 V
:
1.8 V to 5.5 V
:
4 kbit ( 256
×
16 bit )
:
Ex.Power supply voltage
monitoring function
•
32.768 kHz frequency output function
:
C-MOS output With Control Pin
•
The various functions include full calendar, alarm, timer.
Actual size
Block diagram
Control Line
32.768 kHz
OSC
DIVIDER
CLOCK
and
CALENDAR
Overview
•
Include EEPROM
•4 kbit ( 256
×
16 bit ) User Memory.
•
The various Power supply voltage monitoring function
•VEX input pin : Power supply voltage monitoring function
•V
DD2
pin : Low voltage detection function
•Oscillation circuit : Low voltage detection function
FOUT
FOE
/ TIRQ
/ AIRQ
V
DD
V
DD2
VEX
GND
DO
DI
CLK
CE
CIRCUIT
BUS
INTERFACE
Vi
Vo
FOUT
CONTROLLER
TIMER
REGISTER
ALARM
REGISTER
CONTROL
REGISTER
INTERRUPTS
CONTROLLER
•
Interface Type
•Serial interface in 4 lines form.
∗
It is possible to make it to 3 lines by
wired-OR connecting DI and DO pins.
VLF
•
32.768 kHz frequency output function
•FOUT pin output (C-MOS output)
•FOE pin enables output on/off control.
EEPROM
256
×
16 bit
•
The various interrupt function
•Alarm interrupt function,
Time-update interrupt function, timer function.
Pin Function
Signal Name Input / Output
V
DD
V
DD2
VEX
CE
CLK
DI
DO
FOUT
FOE
/ AIRQ
/ TIRQ
GND
-
-
-
Input
Input
Input
Output
Output
Input
Output
Output
-
Function
Connected to a positive power supply.
Real time clock module power.
∗
Always supply the power irrespective of action situation to this terminal.
External voltage detection input pin
The chip enabled input pin. ( built -in pull-down resistance )
The shift clock input pin for serial data transfer.
The data input pin for serial data transfer.
The data output pin for serial data transfer.
This pin outputs the reference clock signal at 32.768 kHz ( C-MOS output ).
Low level at the time of output off.
The input pin for the FOUT output control.
Open drain output pin for alarm and time update interrupts.
Open drain output pin for timer interrpt.
Connected to a ground.
Terminal connection / External dimensions
RTC
−
9701 JE
2.
3.
4.
5.
6.
7.
8.
9.
10.
VEX
FOE
/ AIRQ
/ TIRQ
CE
CLK
DI
DO
V
DD
6.0
±
0.2
5.4
1.5
Max .
0.65
( Unit:mm )
1.
V
DD2
20.
19.
7.0
±
0.3
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
GND
GND
FOUT
18.
17.
16.
15.
14.
13.
12.
11.
VSOJ
−
20 pin
Metal m ay be exposed on the top or bottom of this product.
This will not affect any quality, reliability or electrical spec
Specifications (characteristics)
!
Recommended Operating Conditions
Item
Power voltage
Clock voltage
Analog voltage
Operating
temperature
Symbol
V
DD
V
DD2
V
EX
T
OPR
Condition
V
DD
pin
V
DD2
pin
V
EX
pin
-
Min.
2.7
1.8
1.4
-40
Typ.
3.0
3.0
+25
Max.
3.6
5.5
5.5
+85
Unit
V
V
V
°C
∗
Refer to application manual for details.
!
EEPROM Memory characteristics
Item
Memory contents
Program/Erase cycle
Current consumption (write to EEPROM)
Access time
CLK clock cycle V
DD
= 3.0 V
±
0.3 V
CLK clock cycle V
DD
= 3.3 V
±
0.3 V
Min.
Typ.
Max.
Unit
-
times
mA
ms
ns
ns
4 kbit ( 256
×
16 bit )
5
10
1
3
5
10
1000
900
!
Frequency characteristics
Item
Frequency
tolerance
Symbol
∆
f/f
Condition
T
a
= +25 °C
V
DD
= 3.0 V
Rating
5
±
23
∗
Unit
×
10
−
6
!
Access characteristics
Item
CLK clock cycle
Min.
500
Typ.
Max.
Unit
ns
∗
Please ask for tighter tolerance. (
Equivalent to 1 minute of monthly deviation)
∗
If not specifically indicated, V
DD
= 2.7 V to 3.6 V , V
DD2
= 1.8 V to 5.5 V , Ta =
−40 °C
to +85
°C
http://www.epsontoyocom.co.jp
“QMEMS” 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.
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.
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.
PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM
CONFORMING TO INTERNATIONAL STANDARDS
At Epson Toyocom, all environmental initiatives operate under
ISO 14000 is an international standard for environmental management
the Plan-Do-Check-Action(PDCA) cycle designed to achieve
that was established by the International Standards Organization in 1996
continuous improvements. The environmental management
against the background of growing concern regarding global warming,
system (EMS) operates under the ISO 14001 environmental
destruction of the ozone layer and global deforestation
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.
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.
►Explanation
of the mark that are using it for the catalog
►Pb
free.
►Complies
with EU RoHS directive.
►Pb
free terminal designed. Contains Pb in products exempted by RoHS directive.
(Contains Pb in sealing glass, high melting temperature type solder or other.)
►Complies
with EU RoHS directive.
►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 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 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.
