M41ST87W

Contents

DocID9497 Rev 11

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3.6

Square wave output ........................................................................ 35

3.7

Full-time 32 kHz square wave output .............................................. 36

3.8

Power-on reset................................................................................ 36

3.9

Reset inputs (

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3.10

Power-fail comparators (1 and 2) .................................................... 37

3.11

Power-fail outputs ........................................................................... 37

3.12

Century bits ..................................................................................... 38

3.13

Output driver pin.............................................................................. 38

3.14

Battery low warning......................................................................... 38

3.15

trec bit ............................................................................................... 39

3.16

Electronic serial number.................................................................. 39

3.17

Oscillator stop detection .................................................................. 39

3.18

Initial power-on defaults .................................................................. 40

4

Maximum ratings ........................................................................... 41

5

DC and AC parameters ................................................................. 42

6

Package information ..................................................................... 46

6.1

SOX28 package information ........................................................... 46

6.2

SSOP20 package information ......................................................... 48

7

Packing information ...................................................................... 49

7.1

SOX28 carrier tape ......................................................................... 49

7.2

SSOP20 carrier tape ....................................................................... 50

7.3

Reel information for SOX28 and SSOP20 ...................................... 51

8

Part numbering.............................................................................. 52

9

Revision history ............................................................................ 53