M41T65Q6F STMicroelectronics, M41T65Q6F Datasheet - Page 19

• 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

M41T62/63/64/65
Clock operation
Write timing
2
When writing to the device, the data is shifted into the M41T62's I
C interface on the rising
edge of the SCL signal. As shown in
Figure
20, on the 8th clock cycle, the data is
2
transferred from the I
C block into whichever register is being pointed to by the address
pointer (not shown).
Writes to the clock registers (addresses 0-7)
Data written to the clock registers (addresses 0-7) is held in the buffer registers until the
2
address pointer increments to 8, or an I
C stop condition occurs, at which time the data in
the buffer/registers is simultaneously copied into the counters, and then the clock is re-
started.
Doc ID 10397 Rev 15
19/43