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M41ST87W Datasheet(PDF) 11 Page - STMicroelectronics

Part # M41ST87W
Description  5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM
PDF  52 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41ST87W Datasheet(HTML) 11 Page - STMicroelectronics

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M41ST87Y, M41ST87W
Description
Doc ID 9497 Rev 8
11/52
Figure 5.
Hardware hookup
1.
Available in SOX28 (MX) package only.
AI07027
VCC
PFO1
EX
(1)
SCL
M41ST87Y/W
WDI
(1)
RSTIN1
RSTIN2
(1)
PFI1
PFI2
VSS
VBAT
F32k
IRQ/OUT
SQW/FT
RST
VOUT
ECON
(1)
SDA
Unregulated
Voltage
5V
Regulator
VCC
VIN
3.3V
Regulator
VCC
VIN
TP1IN
TPCLR
TP2IN
Pushbutton
Reset
For monitoring
of additional
voltage sources
PFO2
Low-Power
SRAM
VCC
E
To Microprocessor
To LED Display
To NMI
To INT
To 32kHz
R1
R2
R3
R4
(1)



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