M41ST87WMX6F STMICROELECTRONICS [STMicroelectronics], M41ST87WMX6F Datasheet - Page 9
M41ST87WMX6F
Manufacturer Part Number
M41ST87WMX6F
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
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.M41ST87WMX6F.pdf
(52 pages)
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M41ST87Y, M41ST87W
Table 1.
1. Available in SSOP (SS) package only.
2. Available in SOX28 (MX) package only.
3. Open drain output.
4. Programmable output (open drain or full-CMOS).
5. Should be connected to V
XI
XO
E
EX
IRQ/OUT
PFI
PFI
PFO
PFO
RST
RSTIN1
RSTIN2
SCL
SDA
SQW/FT
WDI
V
V
V
F
TP1
TP2
TP
V
NF
NC
OUT
32k
CON
CC
SS
BAT
(1)
CLR
(2)
(5)
(1)
(5)
1
2
IN
IN
(3)
(2)
(3)
1
2
(2)
(4)
(4)
(2)
(2)
(4)
(3)
Signal names
SS
.
Oscillator input
Oscillator output
Conditioned chip enable output
External chip enable
Interrupt/out output (open drain)
Power fail input 1
Power fail input 2
Power fail output 1
Power fail output 2
Reset output (open drain)
Reset 1 input
Reset 2 input
Serial clock input
Serial data input/output
Square wave output/frequency test
Watchdog input
Supply voltage
Voltage output
Ground
32 kHz square wave output (open drain)
Tamper pin 1 input
Tamper pin 2 input
Tamper pin RAM clear
Positive battery pin input
No function
No connect
Doc ID 9497 Rev 8
Description
9/52
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