Datasheet

DS1685/DS1687 3V/5V Real-Time Clocks
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Table 2. Time, Calendar, and Alarm Data Modes—Binary Mode (DM = 1)
ADDRESS BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 FUNCTION RANGE
00H 0 0 Seconds Seconds 00-3B
01H 0 0 Seconds
Seconds
Alarm
00-3B
02H 0 0 Minutes Minutes 00-3B
03H 0 0 Minutes
Minutes
Alarm
00-3B
04H
AM/PM
0 0
0 Hours
Hours
1-0C
+AM/PM
00-17
0 Hours
05H
AM/PM
0 0
0 Hours
Hours
Alarm
1-0C
+AM/PM
00-17
0 Hours
06H 0 0 0 0 0 Day Day 01-07
07H 0 0 0 Date Date 01-1F
08H 0 0 0 0 Month Month 01-0C
09H 0 Year Year 00-63
0AH
UIP DV2 DV1 DV0 RS3 RS2 RS1 RS0
Control
0BH
SET PIE AIE UIE SQWE DM 24/12 DSE
Control
0CH
IRQF PF AF UF 0 0 0 0
Control
0DH
VRT 0 0 0 0 0 0 0
Control
48H Century
Bank 1
Century
00-63
49H 10 Date Date
Bank 1
Date Alarm
01-1F