STMicroelectronics M41T00S
The M41T00S is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator (external crystal controlled). The built-in address register is incremented automatically after each WRITE or READ data byte. The M41T00S has a built-in power sense circuit which detects power failures and automatically switches to the battery supply when a power failure occurs.| Part No. | M41T00S |
|---|---|
| Datasheet | M41T00S Download |
| Manufacturer |  STMicroelectronics |
| Description | Serial real-time clock |
| Buy | Stock & Price |
FEATURES
● 2.0 to 5.5 V clock operating voltage● Counters for seconds, minutes, hours, day, date, month, year, and century
● Software clock calibration
● Automatic switchover and deselect circuitry (fixed reference)
● VCC = 2.7 to 5.5 V 2.5 V ≤ VPFD ≤ 2.7 V
● Serial interface supports I²C bus (400 kHz protocol)
● Low operating current of 300 µA
● Oscillator stop detection
● Battery or SuperCapTM backup
● Operating temperature of - 40 to 85 °C
● Ultra-low battery supply current of 0.6 µA Serial real-time clock Datasheet - production data
DESCRIPTION
Eight bytes of the SRAM 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 I²C interface. The energy needed to sustain the clock operations can be supplied by a small lithium button supply when a power failure occurs. The eight clock address locations contain the century, year, month, date, day, hour, minute, and second in 24-hour BCD format.
