M41T64LC6F(2019) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

M41T64LC6F
(Rev.:2019)

Low-power serial real-time clocks (RTCs) with alarm

STMicroelectronics 

M41T62, M41T64, M41T65

Description

(3)

XTAL

(3)

SDA

SCL

Figure 7. M41T62 block diagram

32 kHz

OSCILLATOR

I²C

INTERFACE

REAL TIME CLOCK

CALENDAR

OSCILLATOR FAIL OFIE

DETECT

RTC W/ALARM AFE

WATCHDOG

SQUARE WAVE SQWE

1. Open drain.

2. Defaults to 32 kHz on power-up.

3. Not bonded on embedded crystal (LCC) package.

Figure 8. M41T64 block diagram

XTAL

SDA

SCL

32 kHz

OSCILLATOR

I²C

INTERFACE

32KE

REAL TIME CLOCK

CALENDAR

OSCILLATOR FAIL

DETECT

RTC W/ALARM

WATCHDOG

SQUARE WAVE SQWE

IRQ/OUT (1)

SQW (2)

F32K (1)

SQW (2)

1. Defaults enabled on power-up.

2. Open drain.

Figure 9. M41T65 block diagram

XTAL

SDA

SCL

32 kHz

OSCILLATOR

I²C

INTERFACE

REAL TIME CLOCK

CALENDAR

OSCILLATOR FAIL OFIE

DETECT

FT

RTC W/ALARM AFE

WATCHDOG

IRQ/FT/OUT (1)

WDO(1)

1. Open drain.

DS3840 - Rev 24

page 5/42

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