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Microchip擴(kuò)展獨(dú)立實(shí)時時鐘/日歷器件系列

全新具有電池切換功能的RTCC器件提供更快的10 MHz SPI接口、看門狗定時器,、事件檢測和更大存儲容量
2011-11-16
作者:Microchip

  Microchip Technology Inc.(美國微芯科技公司)宣布,,推出全新獨(dú)立實(shí)時時鐘/日歷(RTCC)器件系列。MCP795WXX/BXX RTCC器件具備10 MHz SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" 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title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" 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title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI" title="SPI">SPI接口,、非易失性存儲器和比競爭器件性價比更高的有效功能組合,。這些新器件可減少元件數(shù)量及成本,適用于智能能源(如恒溫器,、電表和商用制冷),、家電(如咖啡機(jī)、燃?xì)庠詈臀⒉t),、汽車(如儀表板控制,、汽車收音機(jī)和GPS)、消費(fèi)類電子(如辦公設(shè)備和視頻系統(tǒng)),,以及通信市場(如收音機(jī),、無繩電話和網(wǎng)絡(luò)系統(tǒng))等應(yīng)用。
 
  MCP795WXX/BXX RTCC器件具有毫秒報警功能,,以及支持極快速數(shù)據(jù)存取的10 MHz SPI接口,,從而能夠?qū)崿F(xiàn)較長的MCU休眠和省電模式,電池耗電量更少,。其他低功耗功能還包括僅消耗RTCC器件最小電流的兩個事件檢測輸入,,但當(dāng)按下開關(guān)或發(fā)生篡改系統(tǒng)事件時即可喚醒MCU。此外,,這些器件作為一個標(biāo)準(zhǔn)產(chǎn)品還包括三種非易失性存儲器:EEPROM,、SRAM和一個惟一的ID(訂購時可指定空白或預(yù)編程MAC地址),可進(jìn)一步減少元件數(shù)量和降低與序列化編程相關(guān)的成本,。利用自動電池切換功能提供備用電源,,電源故障時間戳可記錄任何電源故障的發(fā)生時間和持續(xù)時長;而且這些器件具有廣泛的數(shù)字微調(diào)范圍,,可補(bǔ)償晶振頻率因溫度的漂移,,從而能夠在廣泛的溫度范圍內(nèi)實(shí)現(xiàn)精確計時。在使用第二個低頻晶振的設(shè)計中,,引導(dǎo)時鐘選項(xiàng)可在上電時提供32 kHz的時鐘頻率,,無需使用第二個晶振,。
  
  Microchip存儲器產(chǎn)品部副總裁Randy Drwinga表示:“憑借全新的SPI RTCC器件,Microchip為客戶提供了一個符合其他眾多系統(tǒng)要求的高品質(zhì)計時解決方案,。我們充分發(fā)揮Microchip的核心競爭力,,以更低成本將有效的功能組合集成在一個器件中,從而成功為客戶帶來這一最新系列,。”
  
開發(fā)工具支持
  
  MCP795XX SPI RTCC PICtail™ Plus子板(部件編號AC164147)將于2012年2月開始供貨,,屆時可以通過microchipDIRECT(http://www.microchip.com/get/FU5C)訂購。該板可以與Microchip的Explorer 16開發(fā)板(部件編號DM240001)和PIC18 Explorer板(部件編號DM183032)配合使用,,能夠幫助設(shè)計人員在其應(yīng)用中演示MCP795WXX/BXX RTCC器件,。
  
封裝與供貨
  
  MCP795WXX RTCC器件采用14引腳SOIC和TSSOP封裝,現(xiàn)已供貨,。MCP795BXX器件將采用相同的封裝,,于12月中旬開始供貨。它們均以10,000片批量訂購?,F(xiàn)在可通過http://www.microchip.com/get/9RSL申請樣片,,并通過microchipDIRECT(http://www.microchip.com/get/FU5C)進(jìn)行批量訂購。欲了解更多信息,,請聯(lián)絡(luò)Microchip銷售代表或全球授權(quán)分銷商,,也可瀏覽Microchip網(wǎng)站http://www.microchip.com/get/321S。欲購買文中提及的產(chǎn)品,,可通過microchipDIRECT購買,,或聯(lián)絡(luò)任何Microchip授權(quán)分銷伙伴。
 

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