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M41T82 データシート(PDF) 8 Page - STMicroelectronics

部品番号 M41T82
部品情報  Serial I2C bus RTC with battery switchover
PDF  61 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T82 データシート(HTML) 8 Page - STMicroelectronics

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Description
M41T82-M41T83
8/61
Doc ID 12578 Rev 12
Table 1.
Signal names
Symbol
Description
XI(1)
1.
For SO8 and QFN16 packages only.
32 KHz oscillator input
XO(1)
32 KHz oscillator output
IRQ1/OUT/FT(2)
2.
For SOX18 and QFN16 packages only.
Interrupt 1/output driver/frequency test output (open drain)
SQW(3)
3.
Defaults to 32 KHz on power-up.
32 KHz programmable square wave output
RST
Power-on reset output (open drain)
FT/RST
Frequency test output/power-on reset (open drain - M41T82 only)
IRQ2(2)
Interrupt for alarm 2 (open drain)
SDA
Serial data address input/output
SCL
Serial clock input
VBAT
Battery supply voltage (tie VBAT to VSS if no battery is connected.)
DU(4)
4.
DU pin must be tied to VCC.
Do not use
VCC
Supply voltage
VSS
Ground



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