Zemin Liu wrote:
> I have a project which needs a battery powered real-time clock (RTC) chip. The
>  chip should have a serial port that can be connected to a PIC16C54. Does any
>  one know where there is such kind of chip, its type and source? Any help is
>  greatly appriciated.

http://www.labyrinth.net.au/~donmck/rtc.html
has pointers to PIC code examples and data sheets on the Panasonic
NJU6355 and Dallas 1202/1302 Real Time Clocks.

Don McKenzie donmck@labyrinth.net.au
DonTronics Tullamarine, Australia
http://www.labyrinth.net.au/~donmck

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