83
Real time clock module
Absolute Max. rating
Specifications (characteristics)
Operating range
Frequency characteristics
DC characteristics
External dimensions
(Unit: mm)
R4553 A
123 4A
E
7.4
0.2
3.2
0.1
5.0
3.1
10.1
0.2
Terminal connection
0.15
0.6
1.27
0.35
0.05 Min.
#1
#7
#14
#8
(GND=O V, V
DD
=5 V
10 % , Ta=-30
C to +70
C)
L1 to L5 are test pin. Do not connect them to any terminals.
Block diagram
32.768 kHz
TP
OUT
S
OUT
SCK
S
IN
CS
1
CS
0
WR
OSC
Counter
Output
control
RAM
(120bit)
Input
control
Output control
Shift register
Control circuit
Control
register
1
Control
register
2
Control
register
3
Sec. Min. Hou.
Day
of
Week
Day Mon. Year
No.
1
2
3
4
5
6
7
Pin terminal
GND
WR
S
IN
SCK
L1
L2
L3
No.
14
13
12
11
10
9
8
Pin terminal
TP
OUT
S
OUT
CS
1
CS
0
L5
L4
V
DD
RTC-4553
RTC-4553
(SOP 14-pin)
Metal may be exposed on the top or bottom of this product. This won't affect any quality, reliability or electrical spec.
SERIAL-INTERFACE REAL TIME CLOCK MODULE WITH SRAM
RTC-4553
Item
Supply voltage
Input voltage
Output voltage
Storage temperature
Symbol
V
DD
V
IN
V
OUT
T
STG
Condition
V
DD
to GND
S
IN
,SCK
__
, W
__
R, CS
__
0
, CS
1
S
OUT
, T
POUT
____
Stored as bare
product after
unpacking
Min.
-0.3
-55
Max.
+6.0
V
DD
+0.3
+125
Unit
V
C
Item
Power voltage
Clock voltage
Operating temperature
Symbol
V
DD
V
CLK
T
OPR
Condition
--
--
No condensation
Min.
2.7
2.0
-30
Typ.
5.0
--
--
Max.
5.5
5.5
+70
Unit
V
V
C
Item
Frequency tolerance
Oscillation start-up time
Frequency temperature
characteristics
Frequency voltage
characteristics
Aging
Symbol
f/fo
t
STA
T
op
f/V
fa
Condition
Ta=+25 C,
V
DD
=5 V
AA
A
B
Ta=-10 C to +70 C, V
DD
=5 V
Reference at +25 C
Ta=Fix, V
DD
=2 V to 5.5 V
Reference at 5 V
Ta=+25 C, V
DD
=5 V,
first year
Range
55
510
520
3.0 Max.
+10
-120
5
Unit
x 10
-6
s
x 10
-6
x 10
-6
/
year
Item
Current consumption
Output voltage
Off leak current
Input voltage
Input current
Symbol
I
DD1
I
DD2
V
OH
V
OL
I
OZH
I
OZL
V
IH
V
IL
I
IH
I
IL
Condition
SCK
___
=500 kHz
SCK
___
=O Hz
I
OH
=-400 A
I
OL
=1.6 mA
V
OUT
=5.5 V
V
OUT
=0 V
--
V
IN
=5.5 V
V
IN
=0 V
Min.
--
V
DD
-0.4
--
-2.0
4/5 V
DD
--
-2.0
Typ.
--
1.0
--
Max.
100
3.0
--
0.4
2.0
--
1/5 V
DD
2.0
Unit
A
V
A
V
A
Built-in crystal unit allows adjustment-free efficient operation.
Automatic calendar function (year, month, day, day of the week, hour, minute,
second).
Automatic leap year correction.
Builtin 30 x 4-bit S-RAM.
Reference pulse output. (1024 Hz, 1/10 Hz)
Actual size
The details are mentioned in the application manual.
http://www.epsondevice.com
Product number (please refer to page 2)
Q41 4 5 5 3 5 x x x x x 0 0
Ta=+25 C, V
DD
= 3.0 V
NOTICE
The 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, applied circuit, program, using way etc., written in this material is just for reference. Seiko Epson does not assume any
liability for the occurrence of infringing any patent or copyright of third party. This material does not authorize the licence for any patent or
intellectual property rights.
Any product described in this Foreign Exchange and Foreign Trade Law of Japan and may require an export licence from the Ministry of
International Trade and industry or other approval from another government agency.
The products (excert for some product for automotive applications) listed up on this material are designed to be used with ordinary
electronic equipment (OA equipment, AV equipment, communications equipment, measuring instruments etc). Seiko Epson does not
assume any liability for the case using the products with the application required high reliability or safty extremely (such as aerospace
equipment etc). When intending to use any our product with automotive application and the other application than ordinary electronic
equipments as above, please contact our sales representatives in advance.
by blending the essence of these three efficiency technologies. The
essence of these technologies is represented in each of the prod-
ucts that we provide to our customers.
In the industrial sector, leading priorities include measures to
counter the greenhouse effect by reducing CO2, measures to pre-
serve the global environment, and the development of energy-effi-
cient products. Environmental problems are of global concern, and
although the contribution of energy-saving technology developed
by EPSON may appear insignificant, we seek to contribute to the
development of energy-saving products by our customers through
the utilization of our electronic devices. EPSON is committed to
the conservation of energy, both for the sake of people and of the
planet on which we live.
EPSON offers effective savings to its customers through a wide
range of electronic devices, such as semiconductors, liquid crystal
display (LCD) modules, and crystal devices. These savings are
achieved through a sophisticated melding of three different effi-
ciency technologies.
Power saving technology provides low power consumption at
low voltages.
Space saving technology provides further reductions in product
size and weight through super-precise processing and high-density
assembly technology.
Time saving technology shortens the time required for design
and development on the customer side and shortens delivery
times.
Our concept of Energy Saving technology conserves resources
Co-existence Mark
The environmental mark symbolizing Epson's
basic stance of "Co-existence with Nature".
The design incorporates a fish, flower, and
water, representing mutually supportive co-
existence.
ISO14000 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.
QS-9000:
This is an enhanced standard for quality
assurance systems formulated by leading U.S.
automobile manufacturers based on the
international ISO 9000 series.
WORKING FOR HIGH QUALITY
Seiko-Epson quickly began working to acquire company-wide
ISO9000 series certification, and has acquired ISO9001 or ISO9002
certification with all targeted products manufactured in Japanese and
overseas plants.
The Quartz Device Operations Division, EPM and SZE have
acquired QS-9000 certification, which are of higher level.
WORKING WITH ENVIRONMENTAL ISSUES
In 1988, Seiko Epson led in working to abolish CFCs, and perfect
abolition of those ozone layer-destroying substances was achieved in
1992. In 1998, the 10th year of start of the CFC-free activity, Seiko
Epson set this year as the "Second Environmental Benchmark Year"
and established a new corporate General Environmental Policy. Seiko
Epson is tackling with environmental issues comprehensively.
At the end of Fiscal 1988, Seiko Epson succeeded in abolishing
chloric solvents doubted to be harmful to human body. In fiscal 1999,
Seiko Epson started the activity with a goal of abolishing lead solder
pointed out possibility of enironmental pollutant.
Promotion of Environment Management System
conforming to International Standard
To strengthen management for environmental activities, Seiko Epson
Group aims at acquisition of the ISO14001 certification for Japanese
and abroad main business bases (including affiliates) for
manufacturing, sales, software development and others.
As of May 25 , 2001, planned 68 bases of all manufacturing bases
and some non-manufacturing bases have acquired the certification.
ENERGY SAVING EPSON
THE CRYSTALMASTER
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