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MCP7940M 参数 Datasheet PDF下载

MCP7940M图片预览
型号: MCP7940M
PDF下载: 下载PDF文件 查看货源
内容描述: 低成本I2Câ ?? ¢实时时钟/日历与SRAM [Low-Cost I2C™ Real-Time Clock/Calendar with SRAM]
分类和应用: 静态存储器时钟
文件页数/大小: 38 页 / 1006 K
品牌: MICROCHIP [ MICROCHIP ]
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MCP7940M  
FIGURE 1-1:  
TYPICAL OPERATING  
CIRCUIT  
X1  
RTCC  
VCC  
MFP  
SCL  
SDA  
Alarms and  
CLKOUT  
X2  
NC  
SRAM  
I2C™  
VSS  
FIGURE 1-2:  
SCHEMATIC  
SYSTEM VCC  
C1  
Note 1  
R1  
R2  
R3  
X1  
VCC  
CX1  
CX2  
X1  
X2  
MFP  
SCL  
SDA  
MFP  
SCL  
SDA  
NC  
VSS  
Suggested Values:  
C1  
100nF  
CX1, CX2  
R1  
See Text  
10K  
R2,3  
X1  
2.2K  
32.768 kHz Crystal  
(See Text)  
Note 1: A 100nF Capacitor should be placed as close to the VCC pin  
on the device as possible.  
DS22292A-page 2  
Preliminary  
2012 Microchip Technology Inc.  
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