Lower Your Design Cost without Losing Out on Accurate Time Keeping with the Microchip MCP7940M
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nie obserwujhttp://www.futureelectronics.com/en/Search.aspx?dsNav=Ntk:ManufacturerPartNumberUpshiftedSearch%7c*MCP7940M*%7c1%7c,Ny:True,Ro:0,Nea:True,N:587 . , the MCP7940M. Just made for high volume reduced tolerance low-cost consumer electronics this I2C real-time clock calendar gives you 64 bytes of SRAM to use as scratch pad memory. It also has digital trimming which compensates for up to 11 seconds of crystal error every day. http://youtu.be/HEnr5T62Ens
