m41st85w STMicroelectronics, m41st85w Datasheet - Page 7

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

Caution:
M4T28-BR12SH1 (48mAh) and M4T32-BR12SH1 (120mAh). For the extended temperature
requirement, the 120mAh M4T32-BR12SH6 is available. For more information, see
on page
Do not place the SNAPHAT battery/crystal top in conductive foam, as this will drain the
lithium button-cell battery.
The 300mil SOX embedded crystal SOIC typically requires a user-supplied battery for non-
volatile operation. Capacitor back-up can also be implemented with this package.
Figure 1.
1. For 28-pin, 300mil embedded crystal SOIC only.
39.
Logic diagram
RSTIN1
RSTIN2
SDA
SCL
WDI
PFI
EX
V CC
M41ST85W
V SS
V BAT (1)
E CON
RST
IRQ/FT/OUT
SQW
PFO
V OUT
AI03658
Table 19
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