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MCP79521 Datasheet(PDF) 14 Page - Micro Analog systems

Part # MCP79521
Description  3V SPI Real-Time Clock Calendar with Battery Switchover
PDF  50 Pages
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Manufacturer  MAS [Micro Analog systems]
Direct Link  http://www.mas-oy.com
Logo MAS - Micro Analog systems

MCP79521 Datasheet(HTML) 14 Page - Micro Analog systems

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MCP7952X/MCP7951X
DS22300A-page 14
Preliminary
 2012 Microchip Technology Inc.
REGISTER 5-6:
DATE 0X05
U-0
U-0
R/W
R/W
—
—
10 Date
Date
bit 7
bit 6
bit 5
bit 4
bit 3
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
bit 7-6
Unimplemented: Read as ‘0’
bit 5-4
10 DATE<1:0>
bit 3-0
DATE<3:0>
Note 1:
Contains the BCD Date and 10 Date. The range is 01-31.
REGISTER 5-7:
MONTH 0X06
U-0
U-0
R
R/W
R/W
—
—
LP
10 Month
Month
bit 7
bit 6
bit 5
bit 4
bit 3
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
bit 7-6
Unimplemented: Read as ‘0’
bit 5
LP: Leap Year, set during a leap year and is read-only
bit 4
10 MONTH
bit 3-0
MONTH<3:0>
Note 1:
Contains the BCD month. Bit 4 contains the 10 month.
REGISTER 5-8:
YEAR 0X07
R/W
R/W
10 Year
Year
bit 7
bit 4 bit 3
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
bit 7-4
10 YEAR<3:0>
bit 3-0
YEAR<3:0>
Note 1:
Contains the BCD Year and 10 Year. The Range is 00-99.



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