M41ST84YMQ1 데이터 시트보기 (PDF) - STMicroelectronics

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M41ST84YMQ1

5.0 or 3.0V, 512 bit (64 x 8) SERIAL RTC with SUPERVISORY FUNCTIONS

STMicroelectronics 

M41ST84Y, M41ST84W

Table 13. tREC Definitions

tREC Bit (TR)

STOP Bit (ST)

0

0

0

1

1

X

Note: 1. Default Setting

tREC Time

Min

Max

96

98

40

200(1)

50

2000

Units

ms

ms

µs

Table 14. Default Values

Condition

WATCHDOG

TR

ST

HT

Out

FT

AFE ABE SQWE Register(1)

Initial Power-up

(Battery Attach for SNAPHAT)(2) 0

1

1

1

0

0

0

0

0

Subsequent Power-up (with

battery back-up)(3)

UC UC

1

UC

0

0

0

0

0

Note: 1. WDS, BMB0-BMB4, RB0, RB1.

2. State of other control bits undefined.

3. UC = Unchanged

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