M41ST85WMH View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M41ST85WMH

3.0/3.3V I²C combination serial RTC, NVRAM supervisor and microprocessor supervisor

STMicroelectronics 

Description

Figure 4. Block diagram

SDA

SCL

Crystal(2)

WDI

VCC

I2C

INTERFACE

32KHz

OSCILLATOR

REAL TIME CLOCK

CALENDAR

44 BYTES

USER RAM

RTC w/ALARM AFE

& CALIBRATION

WATCHDOG

WDS

SQUARE WAVE

VBAT

VBL= 2.5V COMPARE

VSO = 2.5V COMPARE

RSTIN1

RSTIN2

EX

PFI

VPFD = 2.65V COMPARE

1.25V

(Internal)

COMPARE

BL

POR

1. Open drain output

2. Crystal integrated into SOIC package for MX package option.

M41ST85W

IRQ/FT/OUT(1)

SQW

VOUT

RST(1)

ECON

PFO

AI03932

10/41

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