Post by thread:[PICLIST] Serial (RTC+EEPROM)

Hi Pedro! > Is there any SERIAL real-time clock + EEPROM out there ? Could not find it > from Dallas, Maxim, Atmel,... If a I2C (or IIC) is ok for you, you can find some on the Dallas site. Currently i use the DS1307 in a project. It includes a RTC and 64 x 8 Bit of EEProm. cu, Doc ... -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics

>Is there any SERIAL real-time clock + EEPROM out there ? Could not find it >from Dallas, Maxim, Atmel,... Philips do a serial RTC in their I2C range. I think it has CMOS ram as well - not much sense in EEPROM when you need a battery to run the clock :) Check out PCF8593 parts. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

part 1 1166 bytes content-type:text/plain; charset=us-ascii Hi, You are in luck..... Xicor make a part (X1243, I believe) with a RTC and 2Kx8 of nv RAM. Interface is I2C (or, 2 wire, depending on if you want to avoid Philips' royalty fees). In fact, they have a whole range of I2C RTC devices with nice goodies on board. Be careful with the layout, however. Regards, Dan (Embedded "Alan B. Pearce" <spam_OUTA.B.PearceTakeThisOuTRL.AC.UK>TakeThisOuTMITVMA.MIT.EDU>> image moved 19/01/2001 09:10 to file: pic02668.pcx) Please respond to pic microcontroller discussion list <.....PICLISTKILLspam@spam@MITVMA.MIT.EDU> Sent by: pic microcontroller discussion list <PICLISTKILLspamMITVMA.MIT.EDU> To: .....PICLISTKILLspam.....MITVMA.MIT.EDU cc: Subject: Re: Serial (RTC+EEPROM) Security Level:? Internal >Is there any SERIAL real-time clock + EEPROM out there ? Could not find it >from Dallas, Maxim, Atmel,... Philips do a serial RTC in their I2C range. I think it has CMOS ram as well - not much sense in EEPROM when you need a battery to run the clock :) Check out PCF8593 parts. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details. part 2 165 bytes content-type:application/octet-stream; (decode) part 3 131 bytes -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

On Fri, 19 Jan 2001 09:10:51 -0000, you wrote: >>Is there any SERIAL real-time clock + EEPROM out there ? Could not find it >>from Dallas, Maxim, Atmel,... > >Philips do a serial RTC in their I2C range. I think it has CMOS ram as well - >not much sense in EEPROM when you need a battery to run the clock :) Check out >PCF8593 parts. Many (most?) RTC chips also have a small amount of SRAM built in. Not much point in using EEPROM if you have a clock battery - the only point of an eeprom here is if data robustness is really important (e.g. calibration data) - there are sufficiently few times this is the case that I doubt you'll find an RTC+EEPROM anywhere. EEPROMs are hardly big or expensive so this is no big deal. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.