M41ST85WMX6 STMicroelectronics, M41ST85WMX6 Datasheet - Page 29
![IC RTC 3.0V NVRAM 28SOIC](/photos/6/56/65690/stmicroelectronics-28-soic_sml.jpg)
M41ST85WMX6
Manufacturer Part Number
M41ST85WMX6
Description
IC RTC 3.0V NVRAM 28SOIC
Manufacturer
STMicroelectronics
Type
Clock/Calendar/Supervisorr
Specifications of M41ST85WMX6
Memory Size
64B
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/Supervisor/Alarm
Rtc Memory Size
64 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)
Memory Configuration
64 X 8
Nvram Features
RTC, Internal Battery, XTAL
Interface Type
I2C, Serial, 2-Wire
Supply Voltage Range
2.7V To 3.6V
Memory Case Style
SO
No. Of Pins
28
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-2805-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M41ST85WMX6
Manufacturer:
ST
Quantity:
20 000
Part Number:
M41ST85WMX6TR
Manufacturer:
ST
Quantity:
20 000
M41ST85W
4
Caution:
Caution:
Maximum ratings
Stressing the device above the rating listed in the absolute maximum ratings table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the operating sections of
this specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Table 8.
1. For SOH28 package, lead-free (pb-free) lead finish: reflow at peak temperature of 260°C (the time above
2. The SOX28 package has lead-free (pb-free) lead finish, but cannot be exposed to peak reflow temperature
Negative undershoots below –0.3 V are not allowed on any pin while in the battery backup
mode.
Do NOT wave solder SOIC to avoid damaging SNAPHAT sockets.
Symbol
T
T
255°C must not exceed 30 seconds).
in excess of 240°C. Reflow at peak temperature of 240°C (the time above 235°C must not exceed 20
seconds).
V
V
P
STG
SLD
I
CC
O
IO
D
Storage temperature (V
off)
Lead solder temperature for 10 seconds
Input or output voltage
Supply voltage
Output current
Power dissipation
Absolute maximum ratings
CC
Parameter
off, oscillator
SNAPHAT
SOH28
SOX28
SOIC
(2)
(1)
®
–0.3 to V
–55 to 150
–0.3 to 4.6
–40 to 85
Value
Maximum ratings
260
240
20
1
CC
+0.3
Unit
mA
°C
°C
°C
°C
W
V
V
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