M41ST85WMH6E STMicroelectronics, M41ST85WMH6E Datasheet - Page 40

• 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

Revision history
9
Table 20.
40/41
01-May-2002
20-May-2004
24-Aug-2000
18-Dec-2000
07-Aug-2001
20-Aug-2001
06-Sep-2001
03-Dec-2001
15-Nov-2002
25-Feb20-03
13-Sep-2004
16-Dec-2008
12-Oct-2000
18-Jun-2001
22-Jun-2001
24-Jan-2003
15-Jun-2004
10-Jan-2006
03-Oct-2007
26-Jul-2001
03-Jul-2002
Aug-2000
Date
Revision history
Document revision history
Revision
1.1
1.2
2.1
2.2
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
10
1
2
3
4
5
6
7
8
9
First issue
Block Diagram added
t
Reformatted, TOC added, and PFI Input Leakage Current added
Addition of t
graphic (see
(Table
temp./voltage info. to tables
(Table
Note added to Clock Operation section
Change in Product Maturity
Improve text in “Setting the Alarm Clock” section
Change V
DC Characteristics V
added; and Crystal Electrical Characteristics table removed
Changed READ/WRITE Mode Sequences
for 5V (M41ST85Y) part only
Change t
Modify DC Characteristics table footnote, Default Values
Added embedded crystal (MX) package option; corrected initial power-up condition
(cover page,
Update diagrams
New Si changes
Reformatted; correct dimensions; update Lead-free information
Table
Update characteristics; add package shipping
Update Maximum ratings
Updated template, Lead-free text, removed 5V references
8, 9, 11, 12, 13, 18, 19)
Reformatted document, some text changes; added lead-free second level interconnect
information to cover page and
Added
mechanical
rec
Table removed, cross references corrected
8, 16, 18)
11, 12, 18); note added to “Setting Alarm Clock Registers” section; added
7)
Section 8: Environmental
rec
PFD
rec
data; minor reformatting.
Definition
Figure
Figure
values in document
information, table changed, one added
(Table
(Figure
4); change to DC and AC Characteristics, Order Information
1, 3, 4, 5, 24,
BAT
(Figure
(Table
13, 5, 6); corrected dimensions
changed; V
4, 5, 24); update values
(Table
(Table
6); modify reflow time and temperature footnote
(Table
4)
Section 6: Package mechanical
8)
information; updated
Table
10, 11, 6, 12, 13); addition of Default Values
11, 18)
OHB
Changes
1, 7, 18, )
changed; PFI Hysteresis (PFI Rising) spec.
(Figure
(Figure
(Table
10, 12); change in V
3;
Table
(Table
(Figure
13, 5, 6, 7, )
Table
(Table
(Figure
(Table
8,
2, 6); changed PFI/PFO
1, 11, 18)
data; updated
Section 6: Package
24;
11, 7)
(Figure
(Table
1, 2, 3, 4, 5;
11, 6)
Table
PFD
20, 13, 16;
11)
)
M41ST85W
lower limit
(Table
Table
Table
8.
5,
8)