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M41T93 Datasheet(PDF) 7 Page - STMicroelectronics

Part # M41T93
Description  Serial SPI bus RTC with battery switchover
PDF  49 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T93 Datasheet(HTML) 7 Page - STMicroelectronics

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M41T93
Summary description
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Figure 1.
Logic diagram
1.
For QFN16 package only.
2.
Defaults to 32kHz on power-up.
3.
Open drain
1.
For QFN16 package only.
2.
Defaults to 32kHz on power-up.
3.
DU pin must be allowed to float (remain unconnected)
Table 1.
Signal name
Symbol
Description
XI(1)
32kHz oscillator input
XO(1)
32kHz oscillator output
IRQ/FT/OUT
Interrupt /frequency test/output driver (open drain)
SQW(2)
32kHz programmable square wave output
RST
Power-on reset output (open drain)
E
Chip enable
SDI
Serial data address input
SDO
Serial data address output
SCL
Serial clock input
VBAT
Battery supply voltage (Tie VBAT to VSS if no battery is connected.)
DU(3)
Do not use
VCC
Supply voltage
VSS
Ground
SDI
VCC
VSS
VBAT
SCL
RST
(3)
E
IRQ/OUT/FT
(3)
SQW
(2)
SDO
XI
(1)
XO
(1)
AI11818



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