°®ÆÕÉú¾§ÕñµÄ¼¸ÖÖRTC²úÆ·ÓÐÄÇЩ£¿ÑïÐËΪÄúÍƼö
×÷Õߣº
ÑïÐ˾§Õñ
ÈÕÆÚ£º2017-11-21
ä¯ÀÀÁ¿£º
ÔÚ¾§ÕñÊг¡Õ¼±ÈÖУ¬°®ÆÕÉú¾§ÕñÒÔ23%µÄÊг¡·Ý¶îÕ¼¾ÝÈ«ÇòµÚÒ»£¬KHZÖа®ÆÕÉúÊÇÒÔ32.768KHZ×îΪ³öÃûµÄ£»ÈçFC-135¡¢MC-146ºÍʵʱʱÖÓRX-8010SJµÈ²úÆ·¡£Ç°Á½ÕßÊDZê×¼µÄ32.768K¾§Õñ£¬ºóÕßÊÇÄÚÖÃÔÚ¼¯³Éµç·µÄ32.768K¾§Õñ£¬ËûÃǶ¼ÊÇÒ»¿îÊý×ֵ緰嶼ҪʹÓõ½µÄÖØÒª²¿¼þ¡£
RTCË׳ÆʵʱʱÖÓ£¬ÊÇÖ¸¿ÉÒÔÏñʱÖÓÒ»˜”Êä³öʵ¼Êʱ¼äµÄµç×ÓÉ豸£¬Ò»°ã»áÊǼ¯³Éµç·£¬Òò´ËÒ²³ÆΪʱÖÓоƬ¡£ÊµÊ±Ê±ÖÓоƬÊÇÈÕ³£Éú»îÖÐÓ¦ÓÃ×îΪ¹ã·ºµÄÏû·ÑÀàµç×Ó²úÆ·Ö®Ò»¡£ËüΪÈËÃÇÌṩ¾«È·µÄʵʱʱ¼ä,»òÕßΪµç×ÓϵͳÌṩ¾«È·µÄʱ¼ä»ù×¼,ĿǰʵʱʱÖÓоƬ´ó¶à²ÉÓþ«¶È½Ï¸ßµÄ¾§ÌåÕñµ´Æ÷×÷ΪʱÖÓÔ´¡£
RTC¿ÉÒÔÌṩÎȶ¨µÄʱÖÓÐźŸøºóÐøµç·Óá£Ò»¸öûÓÐʵʱʱÖÓµÄϵͳҲ¿ÉÒÔ¼ÆËãʵ¼Êʱ¼ä£¬²»¹ýʹÓÃʵʱʱÖÓÓÐÒÔϵÄÓŵ㣺
1)ÏûºÄ¹¦ÂʵÍ(µ±Ê¹Óø¨ÖúµçԴʱ¸ñÍâÖØÒª)
2)ÈÃÖ÷ϵͳ´¦Àí¸üÐèʱЧÐԵŤ×÷
3)ÓÐʱ»á±ÈÆäËû·½Ê½µÄÊä³öÒª¸ü׼ȷ
RTC Basics
°®ÆÕÉúÓÅÊÆ-ÄÚÖþ§Ìåµ¥Ôª
°®ÆÕÉúRTCµÄÌصã
¢ÙСÐÍ»¯·â×°ºÍ¸ß¿É¿¿ÐÔ
? ICºÍ¾§ÌåÒ»Ì廯·â×°¼¼Êõ
? ÄÚÖõçÔ´Çл»µç· µÄÐͺÅÖ§³Ö
¢ÚÎȶ¨¿É¿¿µÄ¸ßʱÖÓ¾«¶È
? RTC³ö³§¾«¶Èµ÷У,
? ÄÚÖÃDTCXOµÄÐͺÅÂú×ãȫη¶Î§Äڸ߾«¶È¼ÆʱҪÇó
¢Û³¬µÍ¹¦ºÄ
? Âú×㳤ÆÚʱÖÓ±£³ÖÒªÇ󲢿ɲÉÓÃСÈÝÁ¿µç³Ø»òµçÈÝ
Ó¦ÓÃÖÐÓÐÄļ¼ÊõÖ¸±êҪעÒâ
µÍ¹¦ÂÊ£¬´ó³ß´ç£¬¸ßÎȶ¨ÐÔ£¬pinÕëÓëÕëµÄ¼æÈÝ
×÷Ϊ°®ÆÕÉú¾§ÕñÒ»¼¶´úÀíµÄÑïÐ˿Ƽ¼£¬B33ÌåÓýΪ´ó¼ÒÍƼöµÄRTCµÍ¹¦ÂÊ·½ÃæµÄ²úÆ·ÓÐÒÔÏÂËÄÖÖ²úÆ·¡£ÏêÇé¿ÉÒÔÃâ·Ñ×ÉѯB33ÌåÓýµÄǰ̨¿Í·þÈËÔ±¡£
RX-6110SA
? I=130nA
? Power Switch
Small Size
Battery Control
?RX-8130CE
? 3.2x2.5 package
High Stability
RX/A-8900SA/CE
? DTCXO ¡ú ¡À5 ppm -40 to +85 ¡æ
? RA ¡ú Automotive
Pin-to-Pin
Compatibility
RX-8010SJ
? Pin-to-Pin Compatible to:
? Maxim DS13375&DS1338
? NXP PCF8563& PCF85163
? IDT IDT1337G
? Intersil ISL12057IBZ & ISL12058IBZ
? ST-Micro M41T0
ÍƼöÔĶÁ
¹Ù·½¹«ÖÚºÅ
΢ÐŶþάÂë
