M41ST85WMX6 STMicroelectronics, M41ST85WMX6 Datasheet - Page 34

• 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

Package mechanical data
6
Figure 21. SOH28 – 28-lead plastic small outline, battery SNAPHAT
Note:
Table 14.
34/41
Symbol
CP
A1
A2
eB
A
B
C
D
E
H
N
e
L
a
Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
Drawing is not to scale.
SOH28 – 28-lead plastic small outline, battery SNAPHAT
1.27
Typ
B
®
®
packages, depending on their level of environmental compliance. ECOPACK
is an ST trademark.
SOH-A
N
1
e
D
millimeters
17.71
11.51
0.05
2.34
0.36
0.15
8.23
3.20
0.41
Min
28
0°
–
E
A2
H
CP
18.49
12.70
Max
3.05
0.36
2.69
0.51
0.32
8.89
3.61
1.27
0.10
8°
–
A
eB
A1
0.050
Typ
®
®
L
, package outline
, package mechanical data
C
inches
0.002
0.092
0.014
0.006
0.697
0.324
0.126
0.453
0.016
Min
28
0°
–
M41ST85W
0.120
0.014
0.106
0.020
0.012
0.728
0.350
0.142
0.500
0.050
0.004
Max
8°
–
®