The M41T93 is a high-precision, low-power, programmable, anti-interference RTC solution that provides battery switchover function for serial SPI bus real-time clock.
The M41T93 is a low-power serial SPI bus real-time clock with a built-in 32.768 kHz oscillator. It features an embedded crystal for the SOX18 package or an external crystal for the QFN16 package. The device includes automatic switchover to a battery supply during power failures and offers functions such as a programmable alarm, watchdog timer, and 8-bit counter.
| Battery supply current | 365 nA |
|---|---|
| Clock operating voltage | 2.0 V to 5.5 V |
| Operating temperature | -40 °C to +85 °C |
| Oscillator frequency | 32.768 kHz |
| User SRAM | 7 bytes |
The square wave output defaults to 32 KHz on power-up.
Yes, it features automatic switchover and reset output circuitry with battery or SuperCap backup.
Yes, lead-free components are compliant with the RoHS directive.