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M41ST87YMX6TR Datasheet(PDF) 9 Page - STMicroelectronics

Part # M41ST87YMX6TR
Description  5.0 and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM
PDF  54 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41ST87YMX6TR Datasheet(HTML) 9 Page - STMicroelectronics

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M41ST87W
Description
DocID9497 Rev 11
9/54
Table 1: Signal names
XI
(1)
Oscillator input
XO
(1)
Oscillator output
E̅ CON(2)
Conditioned chip enable output
EX(2)
External chip enable
IRQ/OUT(3)
Interrupt/out output (open drain)
PFI1
Power fail input 1
PFI2
Power fail input 2
PFO1(4)
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)
No function
NC
(5)
No connect
Notes:
(1)
Available in SSOP package only.
(2)
Available in SOX28 package only.
(3)
Open drain output.
(4)
Programmable output (open drain or full-CMOS).
(5)
Should be connected to VSS.



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