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M41T64 데이터 시트보기 (PDF) - STMicroelectronics
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M41T64
Serial real-time clocks with alarm
STMicroelectronics
M41T64 Datasheet PDF : 41 Pages
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M41T62/63/64/65
Description
Figure 13. Hardware hookup for SuperCap™ backup operation
VCC
(1)
M41T6x
VCC
(2)
IRQ/FT/OUT
XI
WDO(3)
XO
SQW(4)
SCL
VSS
SDA
F32K
MCU
VCC
Port
Reset Input
SQWIN
Serial Clock Line
Serial Data Line
32KHz CLKIN
AI10400b
1. Diode required on open drain pin (M41T65 only) for SuperCap (or battery) backup. Low threshold BAT42
diode recommended.
2. For M41T62 and M41T65 (open drain).
3. For M41T63 and M41T65 (open drain).
4. For M41T64 (open drain).
Doc ID 10397 Rev 14
11/41
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