M41T80M6E STMicroelectronics, M41T80M6E Datasheet - Page 14

• Manufacturer Part Number: M41T80M6E
• Description: IC RTC SERIAL W/ALARM 8-SOIC
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T80M6E

• Memory Size: 20B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Function: Clock/Calendar/Alarm/Timer Interrupt
• Rtc Memory Size: 20 Byte
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial (2-Wire, I2C)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2820-5; M41T80M6

Clock operation
14/25
Table 3.
1. Keys:
Addr
0Ch
0Dh
0Ah
0Bh
0Eh
0Fh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
10h
11h
12h
13h
ST = Stop bit
0 = Must be set to '0'
32KE = Enable bit for 32 KHz output
CEB = Enable for century bit
CB = Century bit
OUT = Data bit for OUT pin
AFE = Alarm flag enable bit
RPT1-RPT5 = Alarm repeat mode bits
AF = Alarm flag (read only)
SQWE = Square wave enable
RS0-RS3 = SQW frequency select
RPT4
RPT3
RPT2
RPT1
32KE
CEB
OUT
AFE
RS3
D7
ST
0
0
0
0
0
0
0
0
Clock register map
SQWE
RPT5
RS2
0.1 seconds
CB
D6
AF
0
0
0
0
0
0
0
0
0
Alarm 10 seconds
Alarm 10 minutes
10 years
10 seconds
10 minutes
RS1
D5
AI 10 hour
0
0
0
0
0
AI 10 date
0
0
0
0
10 hours
10 date
Doc ID 9074 Rev 4
Al 10M
10M
RS0
D4
(1)
0
0
0
0
0
0
0
D3
0
0
0
0
0
0
0
0
Hours (24-hour format)
Date: day of month
Alarm seconds
Alarm minutes
0.01 seconds
Alarm month
D2
Alarm date
Alarm hour
0
0
0
0
0
0
0
Seconds
Minutes
Month
Year
Day of week
D1
0
0
0
0
0
0
0
D0
0
0
0
0
0
0
0
of seconds
Reserved
Reserved
Reserved
Function/range BCD
10s/100s
Seconds
Al month
Century/
Minutes
Control
32 KHz
Al date
Al hour
Month
Al min
Al sec
hours
SQW
Flags
Date
Year
Day
format
0-1/00-23
00-99
00-59
00-59
01-31
01-12
00-99
01-12
01-31
00-23
00-59
00-59
M41T80
01-7