m41st85w STMicroelectronics, m41st85w Datasheet - Page 40

• Manufacturer Part Number: m41st85w
• Description: 3.0/3.3v I 2c Combination Serial Rtc, Nvram Supervisor And Microprocessor Supervisor
• Manufacturer: STMicroelectronics

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Aug-2000
Date
Revision history
Document revision history
Revision
1.0
1.1
1.2
2.0
2.1
2.2
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
4.0
5.0
6.0
7.0
8.0
9.0
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
rec
Table removed, cross references corrected
8, 16, 18)
11, 12, 18); note added to “Setting Alarm Clock Registers” section; added
7)
rec
PFD
rec
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)
Table
10, 11, 6, 12, 13); addition of Default Values
OHB
11, 18)
Changes
1, 7, 18, 17)
changed; PFI Hysteresis (PFI Rising) spec.
(Figure
(Figure
(Table
10, 12); change in V
3;
(Table
(Figure
13, 5, 6, 7, 17)
Table
(Table
(Figure
(Table
2, 6); changed PFI/PFO
1, 11, 18)
data; updated
24;
11, 7)
(Figure
(Table
1, 2, 3, 4, 5;
11, 6)
Table
PFD
20, 13, 16;
11)
17)
lower limit
(Table
Table
Table
8.
5,
8)