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MCP7940NT-I/SN

更新时间： 2024-11-21 12:01:55
品牌 Logo 应用领域
美国微芯 - MICROCHIP 电池静态存储器时钟
页数 文件大小 规格书
42页 1246K
描述
Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover

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中文翻译

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MCP7940NT-I/SN 技术参数

是否Rohs认证： 符合生命周期：Active
零件包装代码：SOIC包装说明：SOP, SOP8,.25
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：11 weeks风险等级：0.55
最大时钟频率：0.032 MHz信息访问方法：I2C
中断能力：YJESD-30 代码：R-PDSO-G8
JESD-609代码：e3长度：4.9 mm
湿度敏感等级：3端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
电源：2/5 V认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Timer or RTC
最大供电电压：5.5 V最小供电电压：1.8 V
标称供电电压：2.5 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn) - annealed端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
最短时间：SECONDS处于峰值回流温度下的最长时间：40
易失性：YES宽度：3.9 mm
uPs/uCs/外围集成电路类型：TIMER, REAL TIME CLOCKBase Number Matches：1

MCP7940NT-I/SN 数据手册

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MCP7940N  
Low-Cost I2C™ Real-Time Clock/Calendar  
with SRAM and Battery Switchover  
Device Selection Table  
Description:  
SRAM  
(Bytes)  
The MCP7940N series of low-power Real-Time Clocks  
(RTC) uses digital timing compensation for an accurate  
clock/calendar, a programmable output control for  
versatility, a power sense circuit that automatically  
switches to the backup supply. Using a low-cost 32.768  
kHz crystal, it tracks time using several internal  
registers. For communication, the MCP7940N uses the  
I2C™ bus.  
Part Number  
MCP7940N  
64  
Features:  
• Real-Time Clock/Calendar (RTCC), Battery  
Backed:  
- Hours, Minutes, Seconds, Day of Week, Day,  
Month and Year  
The clock/calendar automatically adjusts for months  
with fewer than 31 days, including corrections for  
leap years. The clock operates in either the 24-hour  
or 12-hour format with an AM/PM indicator and  
settable alarm(s) to the second, minute, hour, day of  
the week, date or month. Using the programmable  
CLKOUT, frequencies of 32.768, 8.192 and 4.096  
kHz and 1 Hz can be generated from the external  
crystal.  
- Dual alarm with single output  
• On-Chip Digital Trimming/Calibration:  
- Range -127 to +127 ppm  
- Resolution 1 ppm  
• Programmable Open-Drain Output Control:  
- CLKOUT with 4 selectable frequencies  
- Alarm output  
The device is fully accessible through the serial  
interface while VCC is between 1.8V and 5.5V, but can  
operate down to 1.3V for timekeeping and SRAM  
retention only.  
• 64 Bytes SRAM, Battery Backed  
• Automatic VCC Switchover to VBAT Backup  
Supply  
• Power-Fail Time-Stamp for Battery Switchover  
• Low-Power CMOS Technology:  
The RTC series of devices are available in the standard  
8-lead SOIC, TSSOP, MSOP and 2x3 TDFN packages.  
- Dynamic Current: 400 A max read  
- Battery Backup Current: <700nA @ 1.8V  
• 100 kHz and 400 kHz Compatibility  
• ESD Protection >4,000V  
Package Types  
MSOP  
X1  
1
8
VCC  
• Packages include 8-Lead SOIC, TSSOP, 2x3  
TDFN, MSOP  
X2  
VBAT  
VSS  
2
3
4
7
6
5
MFP  
SCL  
SDA  
TDFN  
• Pb-Free and RoHS Compliant  
• Temperature Ranges:  
X1  
1
VCC  
MFP  
SCL  
SDA  
8
7
6
5
2
3
4
X2  
- Industrial (I): -40°C to +85°C  
- Extended (E): -40°C to +125°C  
VBAT  
SOIC, TSSOP  
VSS  
1
2
3
4
8
7
6
5
X1  
VCC  
X2  
VBAT  
VSS  
MFP  
SCL  
SDA  
2011-2013 Microchip Technology Inc.  
DS25010E-page 1  
1234567...42

中文翻译

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MCP7940NT-I/SN 替代型号

型号 品牌 替代类型 描述 数据表
MCP7940N-I/SN MICROCHIP

完全替代

 Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
MCP7940N-E/SN MICROCHIP

类似代替

 Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover

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