實時時鐘模組(Real Time Clock Module)
品牌 : Seiko Epson Corporation
產品說明

1) Serial  4-Wire

This module is a serial interface real time clock that has a built-in crystal unit.
Part no: RX-4045SA/NB, RX-4581NB, RX-4801SA/JE, RA-4565SA, RTC-9701JE ... .etc
more informaion and detail specification,  please refer to
http://www.epsontoyocom.co.jp/english/product/RTC/index.html


2) Serial 3-Wire

This module is a serial interface real time clock that has a built-in crystal unit.
part no.: RTC-4701JE/NB, RTC-4574SA/JE/NB/LC/SA, RTC-4543SA/SB, RTC-4575LC, RTC-4571LC/NB/SA ... etc,
more informaion and detail specification,  please refer to
http://www.epsontoyocom.co.jp/english/product/RTC/serial_3_wire1.html


3) I2C Bus


This module is a I2C-Bus interface real time clock that has a built-in crystal unit.
part no.: RX-8025SA/NB, RX-8564JE/NB/LC, RX-8565SA, RX-8571SA/NB/LC, RX-8581JE/NB/SA, RX-8731LC, RX-8801SA/JE...etc,
more informaion and detail specification,  please refer to
http://www.epsontoyocom.co.jp/english/product/RTC/i2c_bus1.html



4) Parallel 4-bits 

This module is a parallel interface real time clock that has a built-in crystal unit.
part no.: RTC-7301SF/DG, RTC-62421, RTC-62423, RTC-72421, RTC-72423 ....etc ,
more informaion and detail specification,  please refer to
http://www.epsontoyocom.co.jp/english/product/RTC/parallel_4_bit.html

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