RTC-4701 [EPSONTOYOCOM]
REAL TIME CLOCK MODULE (SPI-Bus);
| 型号： | RTC-4701 |
| 厂家： | 
EPSON TOYOCOM |
| 描述： | REAL TIME CLOCK MODULE (SPI-Bus) |
| 文件： | 总2页 (文件大小：339K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Real time clock module
Epson Toyocom
Product Number (Please contact us)
RTC-4701JE : Q41470171000200
RTC-4701NB: Q41470191000200
Built-in Temperature Sensor
SERIAL-INTERFACE REAL TIME CLOCK MODULE
RTC - 4701JE
/
NB
•
Built in frequency adjusted 32.768 kHz crystal unit.
•Interface Type
: 3-wire serial interface
: 1.6 V to 5.5 V
•Operating voltage range
•Wide Timekeeper voltage range : 1.6 V to 5.5 V
•Built-in temperature sensor : Detects temperature.
Converts output to analog voltage
•32.768 kHz frequency output function: C-MOS output With Control Pin
•Function of time and calendar, the various interrupt function etc.
Actual size
RTC-4701JE
RTC-4701NB
Block diagram
Overview
32.768 kHz
Control Line
• Built-in temperature sensor
• Diode temperature sensor (analog voltage output)
OSC
DIVIDER
temperature sensor operating voltage : 2.7 V to 5.5 V
temperature sensor tolerance : ± 5 °C ( Ta = +25 °C )
voltage output (analog): −7.6 mV / °C Typ.
CLOCK
and
VTEMP
/ SOFF
Temperature
Sensor
CALENDAR
• 32.768 kHz frequency output function
• FOUT pin output (C-MOS output), CL=30 pF
• FOE pin enables output on/off control.
FOUT
FOE
FOUT
TIMER
CONTROLLER
REGISTER
• The various interrupt function
• 12 bit additional counter. ( to 4095 count )
• Timer function can be set up between
1/4096 second and 255 minutes.
/ AIRQ
/ TIRQ
INTERRUPTS
CONTROLLER
ALARM
REGISTER
• Alarm function can be set to day of week, hour, or minute.
DATA
CLK
CE
CONTROL
REGISTER
BUS
and
INTERFACE
CIRCUIT
SYSTEM
CONTROLLER
(Unit:mm)
Pin Function
Terminal connection / External dimensions
Signal
Name
Input /
Output
Function
RTC − 4701 JE
RTC − 4701 NB
The chip enabled input pin.
CE
Input
Input
N.C.
N.C.
DD
1. GND
2.
22.
21.
1.
V
20. N.C.
19. N.C.
18. N.C.
17. N.C.
16. N.C.
15. N.C.
14. N.C.
13. N.C.
12. N.C.
(Built -in pull-down resistance)
The shift clock input pin for serial data transfer.
The data input / output pin for serial data
transfer.
CLK
/ SOFF
2. FOUT
3. CE
DATA Bi-directional
3. VTEMP
4. FOE
20. N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
−
19.
18.
17.
16.
15.
14.
13.
12.
4.
/ AIRQ
FOE input
HIGH
FOUT output
FOUT
Output
5. DATA
6. CLK
5. / TIRQ
6. CLK
32.768 kHz output
output OFF
C-MOS output
Hi - z
LOW
4.8
FOE
Input
7.
5.4
/ TIRQ
7. DATA
8. FOE
8. / AIRQ
9. CE
The voltage output pin for the
temperature sensor ( analog ).
The input pin for the temperature sensor control.
Output 1 pin ( N-ch open drain )
1.3
±
0.1
Max.
1.5
VTEMP
Output
9. VTEMP
/SOFF
/ AIRQ
/ TIRQ
Input
Output
Output
10. FOUT
5.0
±
0.2
±
6.0 0.2
10. / SOFF
11. GND
−
DD
V
11.
Output 2 pin ( N-ch open drain )
−
VSOJ 20 pin
−
SON 22 pin
DD
V
GND
Connected to a positive power supply.
Connected to a ground.
Metal may be exposed on the top or bottom of this product. This w ill not affect any quality, reliability or electrical spec.
Temperature sensor characteristics
* Refer to application manual for details.
Output voltage
DD
a
−
°
°
If not specifically indicated, GND = 0 V , V = 2.7 V to 5.5 V , T
=
40 C to +85 C
VTEMP
[ V ]
Item
Temperature
output voltage
Symbol
Condition
Min.
Typ.
Max.
Unit
V
a
°
a
VTEMP pin, T = +25
C
−
°
V ( 40 C )
TEMP
V
1.480
GND based output voltage
ACR
T
a
°
±
°
C
Output tolerance
T
= +25
C
5.0
Temperature
sensitivity
SE
°
°
≤
≤
≤
≤
°
°
C
V
-40
-40
C
C
T
a
a
+85
+85
C
-7.1
-7.6
1.0
-8.1
mV /
%
Approximate
straight line
a
∆
°
C
±
2.0
Linearity
NL
T
b
Temperature
detection range
Measured
SOP
∆
≤
±
−
40
°
T
NL
VTEMP pin, T
GND standard and V standard
2.0 %
+ 85
3.0
C
°
a
= +25
C
O
R
Ω
Output resistance
k
DD
a
° − − ° °
SE
= ( V ( +85 C ) V ( 40 C ) ) / 125 [ mV / C ]
Temperature sensitivity
Linearity
V
°
V(+85 C )
a : Maximum deviation between the measured value of
VTEMP and approximate straight line.
a
b
∆
×
NL =
100 [ % ]
b : Difference between the measured values at
Ta
−
40
0
+85
−
°
°
40 C and +85 C.
°
[ C]
Temperature
∆
∆
V
Ι
1
1
Ω
]
Output resistance ( Ro ) Ro
=
[
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“QMEMS” EPSON TOYOCOM
In order to meet customer needs in a rapidly advancing digital,
Quartz devices have become crucial in the network environment where
products are increasingly intended for broadband, ubiquitous applications
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Corporation addresses every single aspect within a network environment.
The new corporation offers “Digital Convergence” solutions to problems
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broadband and ubiquitous society, we are committed to offering products
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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
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by rolling out products that exceed market speed and quality
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CONFORMING TO INTERNATIONAL STANDARDS
the Plan-Do-Check-Action(PDCA) cycle designed to achieve
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At Epson Toyocom, all environmental initiatives operate under
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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
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►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 To yo c o m .
●The information, applied circuitry, programming, usage, etc., written in this material is intended for reference only. Epson Toyocom does not
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/ Space equipment (artificial satellites, rockets, etc.) / Transportation vehicles and related (automobiles, aircraft, trains, vessels, etc.)
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● 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
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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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