DS32C35 Maxim Integrated Products, Inc., DS32C35 Datasheet - Page 12
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DS32C35
Manufacturer Part Number
DS32C35
Description
Accurate I2c Rtc With Integrated Tcxo/crystal/fram
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS32C35.pdf
(22 pages)
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Manufacturer:
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Accurate I
TCXO/Crystal/FRAM
Table 3. RTC Register Map
Note: Unless otherwise specified, the registers’ state is not defined when power is first applied. Bits indicated as 0 can be written to
a 1 or 0, but always read back as 0.
12
ADDRESS
0Ah
0Bh
0Ch
0Dh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Eh
0Fh
10h
11h
12h
____________________________________________________________________
Century
(MSB)
EOSC
A1M2
A1M3
A1M4
A2M2
A2M3
A2M4
BIT 7
A1M1
Sign
Sign
Data
OSF
0
0
0
0
0
BBSQW
DY/DT
DY/DT
12/24
12/24
12/24
BIT 6
Data
Data
Data
0
0
0
0
2
10 Year
C RTC with Integrated
10 Seconds
10 Seconds
10 Minutes
10 Minutes
10 Minutes
10 Hour
10 Hour
10 Hour
AM/PM
AM/PM
AM/PM
CONV
BIT 5
Data
Data
0
0
0
0
10 Date
10 Date
10 Date
10 Month
10 Hour
10 Hour
10 Hour
BIT 4
Data
Data
RS2
0
0
0
EN32kHz
BIT 3
Data
Data
RS1
0
0
INTCN
BIT 2
Data
Data
BSY
Seconds
Seconds
Minutes
Minutes
Minutes
0
Month
Hour
Hour
Hour
Date
Year
Date
Date
Day
Day
BIT 1
A2IE
Data
Data
A2F
Day
0
(LSB)
BIT 0
A1IE
Data
Data
A1F
0
Alarm 1 Seconds
Alarm 1 Minutes
Alarm 2 Minutes
Alarm 1 Hours
Alarm 2 Hours
Control/Status
MSB of Temp
Alarm 1 Date
Alarm 2 Date
LSB of Temp
Aging Offset
Alarm 1 Day
Alarm 2 Day
FUNCTION
Seconds
Minutes
Century
Control
Month/
Hours
Date
Year
Day
1–12 + AM/PM
1–12 + AM/PM
1–12 + AM/PM
RANGE
01–12 +
Century
01–31
00–59
00–59
00–59
00–59
00–23
00–99
00–59
00–23
00–23
1–31
1–31
1–7
1–7
1–7
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