M41ST85WMH6E STMicroelectronics, M41ST85WMH6E Datasheet - Page 38

• Manufacturer Part Number: M41ST85WMH6E
• Description: IC RTC 3.0V 512BIT NVRAM 28SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Supervisorr

Specifications of M41ST85WMH6E

• 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)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-2804-5; M41ST85WMH6

Part numbering
7
Caution:
For other options, or for more information on any aspect of this device, please contact the ST sales office
nearest you.
38/41
Part numbering
Table 18.
Example:
Device type
M41ST
Supply voltage and write protect voltage
85W = V
Package
MH
MX
Temperature range
6 = –40 to 85°C
Shipping method
For SOH28:
Blank = tubes (Not for New Design - use E)
E = ECOPACK
F = ECOPACK
TR = tape & reel (Not for New Design - use F)
For SOX28:
Blank = ECOPACK
TR = ECOPACK
1. The 28-pin SOIC package (SOH28) requires the SNAPHAT
2. The SOX28 package includes an embedded 32,768 Hz crystal.
Do not place the SNAPHAT
drain the lithium button-cell battery.
Table 19.
(2)
(1)
separately under the part number “M4TXX-BR12SHX” in plastic tube or “M4Txx-BR12SHXTR” in tape &
reel form (see
M4T28-BR12SH
M4T32-BR12SH
= SOX28
= SOH28
Part number
CC
= 2.7 to 3.6 V; 2.55V
Ordering information scheme
SNAPHAT
®
®
®
Table
package, tape & reel
package, tubes
package, tape & reel
®
package, tubes
19).
®
Lithium battery (48 mAh) and crystal SNAPHAT
Lithium battery (120 mAh) and crystal SNAPHAT
battery/crystal table
®
battery package “M4Txx-BR12SH” in conductive foam as it will
V
PFD
2.70 V
M41ST
Description
®
battery/crystal package which is ordered
85W
MH
®
®
top
top
6
Package
M41ST85W
SH
SH
E