M41T83RMY6E STMicroelectronics, M41T83RMY6E Datasheet - Page 23

• Manufacturer Part Number: M41T83RMY6E
• Description: IC RTC SERIAL W/BATT SW SOX18
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T83RMY6E

• Memory Size: 32B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 18-SOX, 18-SOIC with Crystal (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

M41T82-M41T83
Table 4.
1. See
2. AF2 will always read 0, if the AL2E bit is set to 0.
3. As indicated in
Addr
19h-
0Ch
0Dh
0Ah
0Bh
0Eh
0Fh
1Fh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
10h
11h
12h
13h
14h
15h
16h
17h
18h
14-18h are SRAM locations and these bits become SRAM cells which are thus excluded from that restriction.
Table 5: Key to Table 4: M41T83 clock/control register map (32
RPT14
RPT13
RPT12
RPT11
RPT24
RPT23
RPT22
RPT21
OFIE
WDF
OUT
A1IE
A2IE
ACS
CB1
RS3
D7
ST
TE
0
0
0
0
M41T83 clock/control register map (32 bytes)
Table
RPT15
RPT25
SQWE
BMB4
TI/TP
CB0
AC6
RS2
AF1
0
0
D6
HT
FT
0.1 seconds
0
0
0
(3)
(3)
Alarm1 10 seconds
Alarm2 10 seconds
Alarm1 10 minutes
Alarm2 10 minutes
10 years
5, the 0 bits should be written to 0. But in the case of these three bits, when AL2E is 0, registers
10 seconds
10 minutes
AF2
BMB3
DCS
ABE
RS1
AC5
TIE
0
D5
AI1 10 hour
AI2 10 hour
AI1 10 date
AI2 10 date
0
0
(3)
10 hours
(2)
10 date
Timer countdown value
User SRAM (7 bytes)
BMB2
10M
DC4
10M
AC4
RS0
10M
Al1
Al2
D4
BL
0
0
Doc ID 12578 Rev 12
BMB1
DC3
AC3
D3
TF
0
0
0
Hours (24 hour format)
Date: day of month
Alarm1 seconds
Alarm2 seconds
BMB0
Alarm1 minutes
Alarm2 minutes
DC2
Alarm 1month
AC2
Alarm2 month
0.01 seconds
OF
D2
Alarm1 hour
Alarm2 hour
Alarm1 date
Alarm2 date
0
0
seconds
Minutes
Month
Year
Day of week
bytes).
AL2E
(1)
DC1
RB1
TD1
AC1
D1
0
DC0
OTP
RB0
TD0
AC0
D0
0
SRAM/Al2 month
Digital calibration
SRAM/Al2 date
SRAM/Al2 hour
SRAM/Al2 min
SRAM/Al2 sec
Century/hours
Timer control
Timer value
Al1 month
calibration
Watchdog
Function/range BCD
seconds
seconds
Al1 date
Al1 hour
Minutes
Al1 min
Al1 sec
Analog
SRAM
Month
SQW
Flags
Date
Year
Day
Clock operation
format
0-3/00-23
00-99
00-59
00-59
01-31
01-12
00-99
01-12
01-31
00-23
00-59
00-59
01-12
01-31
00-23
00-59
00-59
01-7
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