M41ST85 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M41ST85

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

STMicroelectronics 

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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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