M41ST87WMX6 STMicroelectronics, M41ST87WMX6 Datasheet - Page 25
![IC SUPERVISOR RTC 160X8 28-SOIC](/photos/6/56/65690/stmicroelectronics-28-soic_sml.jpg)
M41ST87WMX6
Manufacturer Part Number
M41ST87WMX6
Description
IC SUPERVISOR RTC 160X8 28-SOIC
Manufacturer
STMicroelectronics
Type
Clock/Calendar/Supervisorr
Specifications of M41ST87WMX6
Memory Size
160B
Time Format
HH:MM:SS:hh (24 hr)
Date Format
YY-MM-DD-dd
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.7 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-SOIC, 28-SOH (8.48mm Width)
Function
Clock/Calendar/Alarm/Timer Interrupt
Rtc Memory Size
160 Byte
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Rtc Bus Interface
Serial (2-Wire, I2C)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-5370-5
M41ST87WMX6
M41ST87WMX6
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M41ST87WMX6
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
M41ST87WMX6TR
Manufacturer:
MBI
Quantity:
12 000
M41ST87Y, M41ST87W
Table 5.
1. With input capacitance = 70 pF and resistance = 50 Ω.
2. If the OF bit is set, t
Figure 20. RAM clear hardware hookup (SOX28 MX package only)
1. Most inverting charge pumps drive OUT to ground when device shut down is enabled (SHDN = logic low). Therefore, an n-
2. In order to avoid turning on an on-chip parasitic diode when driving V
Symbol
t
CLRD
channel enhancement mode MOSFET should be used to isolate the OUT pin from the V
MOSFET should be used to isolate the V
t
CLR
(1)
Tamper detect timing
Pushbutton
Tamper RAM clear ext delay
V
CLRD
Reset
IN
Regulator
Tamper clear timing
Inhibit
5V
(min) = 0.5 ms.
Parameter
V
CC
OUT
V
EX
SCL
WDI
RSTIN1
RSTIN2
PFI
PFI
V
TP1
TP2
V
CC
SS
BAT
pin from the negative voltage generated by the inverting charge pump.
1
2
IN
IN
M41ST87Y/W
Doc ID 9497 Rev 9
CLRPW
IRQ/OUT
SQW/FT
X
TP
1
0
0
1
1
PFO
PFO
E
V
SDA
RST
F
CON
OUT
CLR
32k
1
2
CLRPW
OUT
X
0
0
1
0
1
CAP+ CAP–
SHDN
IN
Inverting
Charge
negative, a p-channel enhancement mode
Pump
To RST
To LED Display
To NMI
To INT
To 32kHz
OUT
1.0
(2)
Min
(2)
OUT
Negative Output
(1)
of the M41ST87.
(–1 x V IN )
Typ
V
E
1.5
16
CC
1
4
8
Low-Power
SRAM
AI07804
Operating modes
Max
2.0
Unit
ms
s
s
s
s
25/54