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MCP7940N-I/ST PDF预览

MCP7940N-I/ST

更新时间： 2024-11-25 12:01:55
品牌 Logo 应用领域
美国微芯 - MICROCHIP 计时器或实时时钟电池微控制器和处理器外围集成电路静态存储器光电二极管
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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MCP7940N-I/ST 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：TSSOP, TSSOP8,.25
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
Factory Lead Time：4 weeks风险等级：0.73
Is Samacsys：N最大时钟频率：0.032 MHz
信息访问方法：I2C中断能力：Y
JESD-30 代码：R-PDSO-G8JESD-609代码：e3
长度：4.4 mm湿度敏感等级：1
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：TSSOP封装等效代码：TSSOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
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：1.2 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：0.65 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 mmuPs/uCs/外围集成电路类型：TIMER, REAL TIME CLOCK
Base Number Matches：1

MCP7940N-I/ST 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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MCP7940N-I/ST 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
MCP7940NT-I/ST MICROCHIP

完全替代

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

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 		Low-Cost I2C? Real-Time Clock/Calendar with SRAM and Battery Switchover
MCP7940NT-E/MNY MICROCHIP

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 		Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
MCP7940NT-E/MS MICROCHIP

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 		Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
MCP7940NT-E/SN MICROCHIP

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 		Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
MCP7940NT-E/ST MICROCHIP

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 		Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
MCP7940NT-I/MNY MICROCHIP

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 		Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
MCP7940NT-I/MS MICROCHIP

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 		Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
MCP7940NT-I/SN MICROCHIP

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 		Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
MCP7940NT-I/ST MICROCHIP

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 		Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover
MCP7940NT-I-MNY MICROCHIP

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

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