RTC-4543SB [EPSONTOYOCOM]

Simple Function SERIAL-INTERFACE REAL TIME CLOCK MODULE; 功能简单的串行接口的实时时钟模块


型号：	RTC-4543SB
厂家：	EPSON TOYOCOM
描述：	Simple Function SERIAL-INTERFACE REAL TIME CLOCK MODULE 功能简单的串行接口的实时时钟模块时钟
文件：	总2页 (文件大小：395K)
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-4543SA : Q41454351000200

RTC-4543SB : Q41454361000200

Simple Function

SERIAL-INTERFACE REAL TIME CLOCK MODULE

RTC - 4543SA SB

•Built in frequency adjusted 32.768 kHz crystal unit.

•Interface type : 3-wire serial interface

•Operating voltage range : 2.5 V to 5.5 V

•Wide Timekeeper voltage range: 1.4 V to 5.5 V

•32.768 kHz frequency output function: C-MOS output With Control Pin

•The various functions include full calendar, timer, and low voltage detection.

Actual size

RTC-4543SA

RTC-4543SB

Block diagram

Overview

32.768 kHz

• 32.768 kHz frequency output function

•FOUT pin output (C-MOS output ), CL=30 pF

•FOE pin enables output on/off control.

CLOCK AND CALENDAR

•FSEL pin enables output selectable 32.768 kHz or 1 Hz.

DIVIDER

OSC

•

Power supply voltage monitoring function

•Detection that power supply voltage descended to 1.7 V or less.

•Automatic record to FDT-bit at the time of power supply

decline detection.

FOUT

FSEL

OUTPUT

CONTROLLER

SHIFT REGISTER

FOE

VOLTAGE

DETECT

DATA

CLK

I / O

CONTROL

CIRCUIT

CONTROLLER

Pin Function

Terminal connection / External dimensions

(Unit:mm)

RTC − 4543 SA

RTC − 4543 SB

Signal Name Input / Output

Function

The chip enabled input pin.

At the HIGH level, access becomes possible.

Input

1. N.C.

2. N.C.

3. N.C.

4. N.C.

5. FOE

6. WR

7. FSEL

8. CE

18. N.C.

17. N.C.

16. N.C.

15. N.C.

1. GND

2. N.C.

3. CE

14. FOUT

13. N.C.

12. N.C.

11. DATA

10. CLK

Input

CLK

The shift clock input pin for serial data transfer.

DATA pin input / output switching pin.

Bi-directional

The data input / output pin for serial data transfer.

DATA

32.768 kHz or 1Hz clock output pin

(C-MOS output).

High impedance at output off.

4. FSEL

5. WR

6. FOE

7. N.C.

14.

Output

5.0

FOUT

13. N.C.

12. CLK

11. DATA

10. FOUT

5.4

Input

FOE

The input pin for the FOUT output control.

2.0 Max.

VDD

Select the frequency that is output from the

FOUT pin.

FSEL

7.4 0.2

7.8

0.2

8. N.C.

Connected to a positive power supply.

9. GND

Connected to a ground.

GND

−

SOP 14 pin

−

SOP 18 pin

Metal may be exposed on the top or bottom of this product. This w ill not affect any quality, reliability or electrical spec.

Specifications (characteristics)

* Refer to application Manual for details.

Current consumption characteristics

Recommended Operating Conditions

T_a= -40 °C to +85 °C

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

Item

Symbol

Condition

Min. Typ. Max. Unit

Power voltage

Clock voltage

Operating

2.5

1.4

5.0

5.5

1.5

1.0

0.5

3.0

2.0

1.0

CLK

= 5 V

CE = GND

FOE = GND

OPR

-40

+25

+85

°C

temperature

Current

Consumption

µA

= 3 V

FOUT;output OFF

(Hi-z)

Frequency characteristics

VDD

Item

Symbol

Condition

Rating

Unit

= 2 V

Frequency

tolerance

T = +25 °C

−

∆

f / f

Supply Voltage Detection Characteristic

VDD = 5.0 V

= -40 C to +85

Item

Symbol

Condition

Min. Typ. Max. Unit

Oscillation

start-up time

Ta = +25 °C

tSTA

3 Max.

= 2.5 V

Power supply

detection voltage

1.4

1.7

2.0

Please ask for tighter tolerance.(Equivalent to 1 minute of monthly deviation )

http://www.epsontoyocom.co.jp

“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

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.

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.

PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM

CONFORMING TO INTERNATIONAL STANDARDS

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.

At Epson Toyocom, all environmental initiatives operate under

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

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.

ISO/TS 16949 is a global standard based on QS-9000, a severe standard

corresponding to the requirements from the automobile industry.

QS-9000 is an enhanced standard for quality assurance systems

formulated by leading U.S. automobile manufacturers based on the

international ISO 9000 series.

►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

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.

相关型号：