{"version":"1.0","provider_name":"FAIRPLY ENTERPRISES INC.","provider_url":"https:\/\/www.fairply.com\/blog","author_name":"admin","author_url":"https:\/\/www.fairply.com\/blog\/author\/admin\/","title":"EPSON RTC72421\/RTC72423(REAL TIME CLOCK MODULE) - FAIRPLY ENTERPRISES INC.","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"0Ch9rjBv6n\"><a href=\"https:\/\/www.fairply.com\/blog\/product\/epson-rtc72421-real-time-clock-module\/\">EPSON RTC72421\/RTC72423(REAL TIME CLOCK MODULE)<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.fairply.com\/blog\/product\/epson-rtc72421-real-time-clock-module\/embed\/#?secret=0Ch9rjBv6n\" width=\"600\" height=\"338\" title=\"EPSON RTC72421\/RTC72423(REAL TIME CLOCK MODULE) &#8212; FAIRPLY ENTERPRISES INC.\" data-secret=\"0Ch9rjBv6n\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.fairply.com\/blog\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/www.fairply.com\/blog\/wp-content\/uploads\/2025\/08\/RTC72421.png","thumbnail_width":700,"thumbnail_height":700,"description":"Overview  The RTC-72421\/RTC-72423 module is a real time clock that can be connected directly to a microprocessor's bus. Its built-in crystal unit enables highly accurate time-keeping with no physical access required for adjustment and, since there is no need to connect external components, mounting and other costs can be reduced. In addition to its time and calendar functions, the RTC-72421\/RTC-72423 enables the use of 30-seconds correction and fixedperiod interrupt functions. The RTC-72421\/RTC-72423 module is ideally suited for applications requiring timing management, such as personal computers, dedicated word-processors, fax machines, multi-function telephones, and sequencers.  FEATURES \u2027 Built-in crystal unit allows adjustment-free efficient operation. \u2027 24 h \/12 h changeable and leap year automatically adjustable (Gregorian calendar). Note \u2027 7242series does not have complete compatibility ability for the \"old product RTC-6242 series\u201d. \u2027 when replace to 7242series from 6242 series, confirm the technical information of RTC7242 latest manual by all means."}