MICROCHIP晶振MCP7940N系列低功耗實時時鐘 (RTC) 使用數(shù)字時序補償來實現(xiàn)精確的時鐘/日歷、可編程輸出控制以實現(xiàn)多功能性,以及自動切換到備用電源的電源檢測電路。它使用低成本的32.768kHz晶振,使用多個內(nèi)部寄存器跟蹤時間。對于通信,MCP7940N使用I2C™ 總線。時鐘/日歷自動調(diào)整少于31天的月份,包括閏年校正。時鐘以24小時制或12小時制運行,帶有 AM/PM 指示器和可設(shè)置為秒、分、小時、星期幾、日期或月份的鬧鐘。使用可編程CLKOUT,可以從外部晶振產(chǎn)生32.768k、8.192k和4.096kHz和1Hz的頻率。
MICROCHIP晶振MCP7940N系列低功耗實時時鐘,MCP7940NT-ESTVAO,32.768k晶振
Manufacturer Part Number原廠代碼 | Manufacturer品牌 | Packaging | Series型號 | Frequency 頻率 | Part Status |
DSC6083CI2A-032K800 | Microchip Technology | Bulk | DSC60XX | 32.8kHz | Active |
DSC6001CI2A-032.0000 | Microchip Technology | Tube | DSC60XX | 32MHz | Active |
DSC6083HE1A-032K800T | Microchip Technology | Tape & Reel (TR) | DSC60XX | 32.8kHz | Active |
DSC6083HE1A-032K800T | Microchip Technology | Cut Tape (CT) | DSC60XX | 32.8kHz | Active |
DSC6083HE1A-032K800T | Microchip Technology | Digi-Reel® | DSC60XX | 32.8kHz | Active |
DSC6083CI2A-032K768 |
Microchip Crystal |
Bulk | DSC60XX | 32.768kHz | Active |
DSC1001DI1-032.0000 | Microchip Technology | Tube | DSC1001 | 32MHz | Active |
DSC1001CI5-032.0000 | Microchip Technology | Tube | DSC1001 | 32MHz | Active |
DSC1121DL2-032.0000T | Microchip Technology | Tape & Reel (TR) | DSC1121 | 32MHz | Active |
DSC1121DL2-032.0000T | Microchip Technology | Cut Tape (CT) | DSC1121 | 32MHz | Discontinued at Digi-Key |
DSC1121DL2-032.0000T | Microchip Technology | Digi-Reel® | DSC1121 | 32MHz | Discontinued at Digi-Key |
DSC1033DI1-032.0000 | Microchip Technology | Tube | DSC1033 | 32MHz | Active |
DSC1033BI1-032.0000 | Microchip Technology | Tube | DSC1033 | 32MHz | Active |
DSC1001AI5-032.0000 | Microchip Technology | Tape & Reel (TR) | DSC1001 | 32MHz | Active |
DSC1001DL5-032.0000 | Microchip Technology | Tube | DSC1001 | 32MHz | Active |
DSC6001CI2A-032.0000T | Microchip Technology | Tape & Reel (TR) | DSC60XX | 32MHz | Active |
DSC6083CI2A-032K768T | Microchip Technology | Tape & Reel (TR) | DSC60XX | 32.768kHz | Active |
DSC6083CI2A-032K800T | Microchip Technology | Tape & Reel (TR) | DSC60XX | 32.8kHz | Active |
DSC1001DE2-032.0000 | Microchip Technology | Tube | DSC1001 | 32MHz | Active |
DSC1121DL2-032.0000 | Microchip Technology | Tube | DSC1121 | 32MHz | Active |
DSC1001DI1-032.0000T | Microchip Technology | Tape & Reel (TR) | DSC1001 | 32MHz | Active |
DSC1033DI1-032.0000T | Microchip Technology | Tape & Reel (TR) | DSC1033 | 32MHz | Active |
DSC1033BI2-032.7680T | Microchip Technology | Tape & Reel (TR) | DSC1033 | 32.768MHz | Active |
DSC1001AI2-032.0000T | Microchip Technology | Tape & Reel (TR) | DSC1001 | 32MHz | Active |
DSC1001BI1-032.0000T | Microchip Technology | Tape & Reel (TR) | DSC1001 | 32MHz | Active |
DSC1001BI2-032.0000T | Microchip Technology | Tape & Reel (TR) | DSC1001 | 32MHz | Active |
DSC1001CI2-032.0000T | Microchip Technology | Tape & Reel (TR) | DSC1001 | 32MHz | Active |
DSC1001CI2-032.7680T | Microchip Technology | Tape & Reel (TR) | DSC1001 | 32.768MHz | Active |
DSC1001CI2-032.0000 | Microchip Technology | Tube | DSC1001 | 32MHz | Active |
DSC1001CI2-032.7680 | Microchip Technology | Tube | DSC1001 | 32.768MHz | Active |
DSC1001BI1-032.0000 | Microchip Technology | Tube | DSC1001 | 32MHz | Active |
MICROCHIP晶振MCP7940N系列低功耗實時時鐘,MCP7940NT-ESTVAO,32.768k晶振
產(chǎn)品特點:
電池供電的實時時鐘/日歷 (RTCC)
小時、分鐘、秒、星期幾、天、月、年
閏年補到2399
12/24 小時模式
片上數(shù)字微調(diào)/校準
1 PPM 分辨率
±129 PPM范圍
雙可編程警報
多功能輸出引腳
具有可選頻率的時鐘輸出 時鐘晶體振蕩器
報警輸出
通用輸出
切換到備用電池和從備用電池切換的時間
64字節(jié)電池備份 SRAM
I2C 時鐘頻率高達 400kHz
工作電壓 1.8V至5.5V
備用電壓 1.3V至5.5V
低典型計時電流
自動切換到備用電池
DSC1033BI1-035.3280
Microchip Technology
Tube
DSC1033
35.328MHz
Active
DSC1033BI1-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1033
32MHz
Active
DSC1001CL1-032.0000
Microchip Technology
Tube
DSC1001
32MHz
Active
DSC1001DI2-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001CI5-032.7680
Microchip Technology
Tube
DSC1001
32.768MHz
Active
DSC1001DI2-032.0000
Microchip Technology
Tube
DSC1001
32MHz
Active
DSC1001CL5-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001CL5-032.0000
Microchip Technology
Tube
DSC1001
32MHz
Active
DSC1001AI5-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001BI5-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001DL2-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001AL5-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001AL5-032.0000
Microchip Technology
Tube
DSC1001
32MHz
Active
DSC1001DI5-032.2500
Microchip Technology
Tube
DSC1001
32.25MHz
Active
DSC1001DL5-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1123CI5-032.0000
Microchip Technology
Tube
DSC1123
32MHz
Active
DSC1001AE2-032.7680T
Microchip Technology
Tape & Reel (TR)
DSC1001
32.768MHz
Active
DSC1001AI2-032.7680T
Microchip Technology
Tape & Reel (TR)
DSC1001
32.768MHz
Active
DSC1001AE2-032.7680
Microchip Technology
Tube
DSC1001
32.768MHz
Active
DSC1001AI2-032.0000
Microchip Technology
Tube
DSC1001
32MHz
Active
DSC1001CC1-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001CE2-032.1100T
Microchip Technology
Tape & Reel (TR)
DSC1001
32.11MHz
Active
DSC1001CI1-032.0000B
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001CI1-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001CI1-032.7680T
Microchip Technology
Tape & Reel (TR)
DSC1001
32.768MHz
Active
DSC1001CI5-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001CI5-032.7680T
Microchip Technology
Tape & Reel (TR)
DSC1001
32.768MHz
Active
DSC1001CL1-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001DE2-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1001DI5-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1001
32MHz
Active
DSC1033CI1-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1033
32MHz
Active
DSC1101CI2-032.7680T
Microchip Technology
Tape & Reel (TR)
DSC1101
32.768MHz
Active
DSC1101DI2-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1101
32MHz
Active
DSC1001BI5-032.0000
Microchip Technology
Tube
DSC1001
32MHz
Active
DSC1001CC1-032.0000
Microchip Technology
Tube
DSC1001
32MHz
Active
DSC1001CI1-032.7680
Microchip Technology
Tube
DSC1001
32.768MHz
Active
DSC1101CI2-032.7680
Microchip Technology
Tube
DSC1101
32.768MHz
Active
DSC1101DI2-032.0000
Microchip Technology
Tube
DSC1101
32MHz
Active
DSC1121CM2-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1121
32MHz
Active
DSC1121CM2-032.0000
Microchip Technology
Tube
DSC1121
32MHz
Active
DSC1001DI5-032.2500T
Microchip Technology
Tape & Reel (TR)
DSC1001
32.25MHz
Active
DSC1001DL2-032.0000
Microchip Technology
Tube
DSC1001
32MHz
Active
DSC1033BI1-035.3280T
Microchip Technology
Tape & Reel (TR)
DSC1033
35.328MHz
Active
DSC1033BI2-032.7680
Tube
DSC1033
32.768MHz
Active
DSC1033CI1-035.3280
Microchip Technology
Tube
DSC1033
35.328MHz
Active
DSC1033CI1-035.3280T
Microchip Technology
Tape & Reel (TR)
DSC1033
35.328MHz
Active
DSC1033DI2-032.0000
Microchip Technology
Tube
DSC1033
32MHz
Active
DSC1033DI2-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1033
32MHz
Active
DSC1123CI5-032.0000T
Microchip Technology
Tape & Reel (TR)
DSC1123
32MHz
Active
MICROCHIP晶振MCP7940N系列低功耗實時時鐘,MCP7940NT-ESTVAO,32.768k晶振
MCP7940N實時時鐘/日歷(RTCC) 使用內(nèi)部計數(shù)器跟蹤時間,包括小時、分鐘, 秒、日、月、年和星期幾。 可以在所有計數(shù)器上配置報警,最多可配置到和包括幾個月。
開漏多功能輸出可以是配置為在報警匹配時斷言,輸出一個可選頻率方波,或作為一般目的輸出。
MCP7940N設(shè)計使用32.768k音叉晶體,帶外部晶體負載電容??梢允褂闷瑑?nèi)數(shù)字調(diào)整,為了調(diào)整由晶體引起的頻率變化公差和溫度。
SRAM和計時電路由供電 主電源斷電時的備用電源,允許 保持精確時間的裝置和SRAM 內(nèi)容。設(shè)備切換到的時間 備用電源和主電源恢復時 都由電源故障時間戳記錄。