Product Summary

The M41T00M6F is a low power serial real time clock with a built-in 32.768 kHz oscillator (external crystal controlled). Eight bytes of the RAM are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. Addresses and data are transferred serially via a two-line bidirectional bus. The built-in address register is incremented automatically after each WRITE or READ data byte. The M41T00M6F clock has a built-in power sense circuit which detects power failures and automatically switches to the battery supply during power failures. The energy needed to sustain the RAM and clock operations can be supplied from a small lithium coin cell.

Parametrics

M41T00M6F absolute maxing ratings: (1)TSTG Storage temperature (VCC off, oscillator off): -55 to 125℃; (2)TA Ambient operating temperature" -40 to 85℃; (3)VIO Input or output voltages: -0.3 to 7V; (4)TSLD(1)Lead solder temperature for 10 seconds: 260℃; (5)VCC Supply voltage: –0.3 to 7V; (6)IO Output current: 20mA; (7)PD Power dissipation: 0.25W.

Features

M41T00M6F features: (1)For new designs use M41T00S; (2)Counters for seconds, minutes, hours, day, month, years, and century; (3)32 kHz crystal oscillator integrating load capacitance (12.5 pF) providing exceptional oscillator stability and high crystal series resistance operation; (4)Serial interface supports I2C bus (100 kHz protocol); (5)Ultra low battery supply current of 0.8 μA (typ at 3 V); (6)2.0 to 5.5 V clock operating voltage; (7)Automatic switchover and deselect circuitry (for 3 V application select M41T00S datasheet); (8)Software clock calibration to compensate crystal deviation due to temperature; (9)Automatic leap year compensation; (10)Operating temperature of -40 to 85℃.

Diagrams

M41T00M6F Block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
M41T00M6F
M41T00M6F
STMicroelectronics
Real Time Clock Serial 64 (8X8)
Data Sheet
0-1: $1.88
1-10: $1.52
10-100: $1.38
100-250: $1.25
Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
M41T0
M41T0
Other

Data Sheet
Negotiable 
M41T00
M41T00
Other

Data Sheet
Negotiable 
M41T00AUDD1F
M41T00AUDD1F
STMicroelectronics
Real Time Clock SERIAL RTC W/AUDIO
Data Sheet
0-2095: $1.45
2095-3000: $1.34
M41T00CAPPC1
M41T00CAPPC1

IC RTC SERIAL W/AUDIO 24PDIP
Data Sheet
0-1: $5.70
1-10: $5.13
10-100: $4.22
100-250: $3.88
250-500: $3.53
500-1000: $3.08
1000-2500: $2.96
2500-5000: $2.85
5000-10000: $2.80
M41T00M6
M41T00M6
STMicroelectronics
Real Time Clock Serial 64 (8X8)
Data Sheet
Negotiable 
M41T00M6E
M41T00M6E
STMicroelectronics
Real Time Clock Serial 64 (8X8)
Data Sheet
0-1: $1.64
1-10: $1.28
10-100: $1.18
100-250: $0.97