Isaha nyayo-PCF8563T / F4,118

Chip Isaha nyayo nimwe mubintu bikoreshwa cyane mubikoresho bya elegitoroniki mubuzima bwa buri munsi.Itanga abantu mugihe nyacyo-nyacyo, cyangwa kuri sisitemu ya elegitoronike kugirango itange igihe nyacyo, Chipi yigihe cyamasaha ikoresha cyane cyane oscillator ya kristu ihanitse nkisoko yisaha.Amashanyarazi amwe amwe murwego rwo kugeza amashanyarazi nyamukuru atanga amashanyarazi hasi, ariko kandi arashobora gukora, gukenera ingufu za batiri yinyongera.

1).Ibicuruzwa bya mbere bya RTC
Ibicuruzwa bya mbere bya RTC mubyukuri bigabanya inshuro hamwe nicyambu cyitumanaho rya mudasobwa.Irabona amakuru yigihe nkumwaka, ukwezi, umunsi, isaha, umunota, nisegonda mugabanye no gukusanya inshuro zinyeganyega zakozwe na kristu hanyuma ikohereza mubitunganya kugirango bitunganyirizwe ku cyambu cyitumanaho rya mudasobwa.
Ibiranga RTC muri iki gihe ni ibi bikurikira: icyambu kibangikanye kumurongo ugenzura;gukoresha ingufu nyinshi;ukoresheje inzira isanzwe ya CMOS;ipaki ni inshuro ebyiri;chip muri rusange ntabwo ifite ikirangaminsi gihoraho no gusimbuka umwaka ukwezi ukwezi guhinduranya imikorere ya RTC igezweho ifite, kandi ntishobora gukemura ikibazo cyumwaka 2000.Ubu byarakuweho.
2).Ibicuruzwa byigihe gito bya RTC
Mu myaka ya za 90 rwagati, havutse igisekuru gishya cya RTC, ikoresha inzira idasanzwe ya CMOS;gukoresha ingufu biragabanuka cyane, hamwe nagaciro gasanzwe kangana na 0.5μA cyangwa munsi yayo;amashanyarazi yo gutanga amashanyarazi ni 1.4V cyangwa munsi yayo;icyambu cy'itumanaho rya mudasobwa nacyo cyahindutse uburyo bukurikirana, nka SIO-eshatu-SIO / bine-SPI-bine, ibicuruzwa bimwe ukoresheje bisi ya 2-I2C;gupakira paki ya SOP / SSOP, ingano Ipaki ifata SOP / SSOP, kandi ingano iragabanuka cyane;
Imikorere: urwego rwubwenge bwa chip rwiyongereye cyane, hamwe nibikorwa bya kalendari ihoraho, kugenzura ibisohoka nabyo byahindutse kandi bitandukanye.Muri byo, Ubuyapani RICOH bwatangije RTC ndetse bwagaragaye no mubikorwa byogukora software (TTF) hamwe na oscillator ihagarika imikorere yo gutahura kandi igiciro cya chip kiri hasi cyane.Kugeza ubu, iyi chip yakoreshejwe nabakiriya ku bwinshi.
3).Igisekuru gishya cyibicuruzwa bya RTC
Igisekuru giheruka cyibicuruzwa bya RTC, usibye kuba gikubiyemo imirimo yose yibisekuru bya kabiri byibicuruzwa, byongeye kandi imirimo ikomatanya, nka voltage ntoya, ibikorwa nyamukuru byo guhinduranya bateri, imikorere yo kurwanya icapiro, hamwe na pake ubwayo ni nto (uburebure 0,85mm, ubuso bwa 2mm * 2mm gusa).

Isaha nyayo Isaha chip ikosa rituruka cyane cyane kuri chip yisaha mugukosora inshuro ya kristu, kandi ikosa rya kristu ryatewe ahanini nubushyuhe bwatewe.Kubwibyo, ubushyuhe bwa kristal resonant inshuro yikosa ryatewe nindishyi zifatika nurufunguzo rwo kunoza neza isaha.Uburyo bwa Quartz kristal resonant yinshuro yindishyi zuburyo bushingiye kumakosa azwi ya kristal resonant inshuro nyinshi hamwe nihinduka ryubushyuhe, kugirango habeho konte ya 1Hz yo kugabana kuburyo bwuzuye bwindishyi.
Igikorwa cyingenzi cya RTC nugutanga ingengabihe ya kalendari kugeza 2099, mugihe, nubwo ikosa ryihuta cyangwa ryihuta gute, kandi capacitor ihuye igira uruhare runini mubikoresho bya peripheri ya RTC, irashobora gukosora neza guhuza ikibazo hagati ya kristu na RTC.