STMicroelectronics M41T64
The M41T6x is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator. The built-in address register is incremented automatically after each WRITE or READ data byte.| Part No. | M41T64 |
|---|---|
| Datasheet | M41T64 Download |
| Manufacturer |  STMicroelectronics |
| Description | Low-power serial real-time clocks |
| Buy | Stock & Price |
FEATURES
● Serial real-time clock (RTC) with alarm functions – 400 kHz I²C serial interface – Memory mapped registers for seconds, minutes, hours, day, date, month, year, and century – Tenths/hundredths of second register● 350 nA timekeeping current at 3 V
● Time keeping down to 1.0 V
● 1.3 V to 4.4 V I²C bus operating voltage – 4.4 V max. VCC suitable for lithium-ion battery operation
● Low operating current of 35 µA (at 400 kHz I²C speed)
● 32 kHz square wave output is on at power-up. Suitable for driving a microcontroller in low-power mode. Can be disabled. (M41T62/64)
● Programmable 1 Hz to 32 kHz square wave output (M41T62/64)
● Programmable alarm with interrupt function (M41T62/65)
● 32 kHz crystal oscillator integrates crystal load capacitors, works with high series resistance crystals
● Oscillator stop detection monitors clock operation
● Accurate programmable watchdog – 62.5 ms to 31 minutes timeout
● Software clock calibration. Timekeeping can be adjusted within ± 2 parts pe...
