User Manual

MAX6901
3-Wire Serial RTC in a TDFN
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WRITE
ADDRESS/COMMAND
BYTE (HEX)
READ
ADDRESS/COMMAND
BYTE (HEX)
DESCRIPTION
POR CONTENTS
(HEX)
80 81 SECONDS 00
82 83 MINUTES 00
84 85 HOUR 00
86 87 DATE 01
88 89 MONTH 01
8A 8B DAY 01
8C 8D YEAR 70
8E 8F CONTROL 00
90 91 RESERVED Nonapplicable
92 93 CENTURY 19
94 95 ALARM CONFIGURATION 00
96 97 RESERVED 07
98 99 SECONDS ALARM THRESHOLD 7F
9A 9B MINUTES ALARM THRESHOLD 7F
9C 9D HOURS ALARM THRESHOLD BF
9E 9F DATE ALARM THRESHOLD 3F
A0 A1 MONTH ALARM THRESHOLD 1F
A2 A3 DAY ALARM THRESHOLD 07
A4 A5 YEAR ALARM THRESHOLD FF
BE BF CLOCK BURST Nonapplicable
C0 C1 RAM 0 Indeterminate
C2 C3 RAM 1 Indeterminate
C4 C5 RAM 2 Indeterminate
C6 C7 RAM 3 Indeterminate
C8 C9 RAM 4 Indeterminate
CA CB RAM 5 Indeterminate
CC CD RAM 6 Indeterminate
CE CF RAM 7 Indeterminate
D0 D1 RAM 8 Indeterminate
D2 D3 RAM 9 Indeterminate
D4 D5 RAM 10 Indeterminate
D6 D7 RAM 11 Indeterminate
D8 D9 RAM 12 Indeterminate
DA DB RAM 13 Indeterminate
DC DD RAM 14 Indeterminate
DE DF RAM 15 Indeterminate
E0 E1 RAM 16 Indeterminate
E2 E3 RAM 17 Indeterminate
Table 3. HEX Register Address/Description