M41T50 Ver la hoja de datos (PDF) - STMicroelectronics
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M41T50 Datasheet PDF : 23 Pages
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M41T50
Table 2. TIMEKEEPER® Register Map
Addr
D7
D6
D5
D4
00h
0
0
0
0
01h
ST
10 Seconds
02h
0
10 Minutes
03h
0
0
10 Hours
04h
0
0
0
0
05h 60Hz
0
10 Date
06h
CB1
CB0
0
10M
07h
10 Years
08h
OUT
0
0
0
09h
0
0
0
0
0Ah
AFE SQWE
0
Al 10M
0Bh RPT4 RPT5
AI 10 Date
0Ch RPT3 SQWOD AI 10 Hour
0Dh RPT2
Alarm 10 Minutes
0Eh RPT1
Alarm 10 Seconds
0Fh
0
AF
0
0
Keys: 0 = Must be set to '0'
AF = Alarm Flag (Read only)
AFE = Alarm Flag Enable Flag
CB0-CB1 = Century Bits
OUT = Output level
Function/Range BCD
D3
D2
D1
D0
Format
0
0
0
0
Reserved0
Seconds
Seconds 00-59
Minutes
Minutes
00-59
Hours (24 Hour Format)
Hours
00-23
0
Day of Week
Day
01-7
Date: Day of Month
Date
01-31
Month
Century/
Month
0-3/01-12
Year
Year
00-99
0
0
0
0
Out
0
0
0
0
Reserved1
Alarm Month
Al Month 01-12
Alarm Date
Al Date
01-31
Alarm Hour
Al Hour
00-23
Alarm Minutes
Al Min
00-59
Alarm Seconds
Al Sec
00-59
0
0
0
0
Flags
SQWOD = Square Wave output Open Drain Bit
RPT1-RPT5 = Alarm Repeat Mode Bits
SQWE = Square Wave Enable Bit
ST = Stop Bit
60Hz = 50Hz or 60Hz Select Bit
12/23
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