M41T65Q6F STMicroelectronics, M41T65Q6F Datasheet - Page 20

• Manufacturer Part Number: M41T65Q6F
• Description: IC RTC SERIAL W/ALARM 16QFN
• Manufacturer: STMicroelectronics
• Type: Clock/Calendar/Alarmr

Specifications of M41T65Q6F

• Memory Size: 16B
• Time Format: HH:MM:SS:hh (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.3 V ~ 4.4 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QFN
• Function: Clock/Calendar/Alarm/Timer Interrupt
• Rtc Memory Size: 16 Byte
• Supply Voltage (max): 4.4 V
• Supply Voltage (min): 1.3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial (2-Wire, I2C)
• Supply Current: 50 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3908-2

Clock operation
20/41
Table 3.
Keys:
0 = must be set to '0'
AF = alarm flag (read only)
AFE = alarm flag enable flag
BMB0 - BMB4 = watchdog multiplier bits
CB0-CB1 = century bits
OF = oscillator fail bit
OFIE = oscillator fail interrupt enable bit
OUT = output level
RB0 - RB2 = watchdog resolution bits
RPT1-RPT5 = alarm repeat mode bits
RS0-RS3 = SQW frequency bits
S = sign bit
SQWE = square wave enable bit
ST = stop bit
WDF = watchdog flag bit (read only)
Addr
0Ch
0Dh
0Ah
0Bh
0Eh
0Fh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
RPT4
RPT3
RPT2
RPT1
OFIE
WDF
OUT
RS3
CB1
RB2
AFE
D7
ST
0
0
M41T62 register map
SQWE
BMB4 BMB3
RPT5
RS2
CB0
D6
0.1 seconds
AF
0
0
0
0
Alarm 10 seconds
Alarm 10 minutes
10 years
10 seconds
10 minutes
RS1
D5
0
S
0
0
AI 10 hour
AI 10 date
10 hours
10 date
Doc ID 10397 Rev 14
Al 10M
BMB2
RS0
10M
D4
0
BMB1 BMB0
D3
0
0
Hours (24-hour format)
Calibration
Date: day of month
Alarm seconds
Alarm minutes
0.01 seconds
Alarm month
Alarm date
Alarm hour
OF
D2
Seconds
Minutes
Month
Year
Day of week
RB1
D1
0
RB0
D0
0
10ths/100ths
of seconds
Calibration
Function/range BCD
Watchdog
Al month
Seconds
Century/
Minutes
Al date
Al hour
month
Al min
Al sec
Hours
Flags
Date
Year
Day
M41T62/63/64/65
format
0-3/01-12
00-99
00-59
00-59
00-23
01-31
00-99
01-12
01-31
00-23
00-59
00-59
01-7