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M41ST87WSS6 Datasheet(PDF) 9 Page - STMicroelectronics

Part # M41ST87WSS6
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

M41ST87WSS6 Datasheet(HTML) 9 Page - STMicroelectronics

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M41ST87Y, M41ST87W
Description
Doc ID 9497 Rev 8
9/52
Table 1.
Signal names
XI(1)
1.
Available in SSOP (SS) package only.
Oscillator input
XO(1)
Oscillator output
ECON
(2)
2.
Available in SOX28 (MX) package only.
Conditioned chip enable output
EX(2)
External chip enable
IRQ/OUT(3)
3.
Open drain output.
Interrupt/out output (open drain)
PFI1
Power fail input 1
PFI2
Power fail input 2
PFO1
(4)
4.
Programmable output (open drain or full-CMOS).
Power fail output 1
PFO2
(4)
Power fail output 2
RST(3)
Reset output (open drain)
RSTIN1
Reset 1 input
RSTIN2(2)
Reset 2 input
SCL
Serial clock input
SDA
Serial data input/output
SQW/FT(4)
Square wave output/frequency test
WDI(2)
Watchdog input
VCC
Supply voltage
VOUT
Voltage output
VSS
Ground
F32k
(3)
32 kHz square wave output (open drain)
TP1IN
Tamper pin 1 input
TP2IN
Tamper pin 2 input
TPCLR
(2)
Tamper pin RAM clear
VBAT
Positive battery pin input
NF(5)
5.
Should be connected to VSS.
No function
NC(5)
No connect



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