STMicroelectronics M41T93
This is preliminary information on a new product now in development or undergoing evaluation.| Part No. | M41T93 |
|---|---|
| Datasheet | M41T93 Download |
| Manufacturer |  STMicroelectronics |
| Description | Serial SPI bus RTC |
| Buy | Stock & Price |
M41T93 Serial SPI bus RTC with battery switchover Preliminary Data Feature summary
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● 2.0 to 5.5V clock operating voltage Ultra-low battery supply current of 365nA Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century Programmable clock calibration (analog and digital) 18 QFN16, 4mm x 4mm (QA)
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● Automatic switch-over and reset output circuitry (fixed reference) – M41T93S: VCC = 3.0V to 5.5V (2.85V ≤VRST ≤3.00V) – M41T93R: VCC = 2.7V to 5.5V (2.55V ≤VRST ≤2.70V) – M41T93Z: VCC = 2.38V to 5.50V (2.25V ≤VRST ≤2.38V) Compatible with SPI Bus serial interface (positive clock SPI modes) Programmable alarm with interrupt function (valid even during battery back-up mode) Optional 2nd programmable alarm available Square wave output (defaults to 32kHz on power-up) RESET (RST) output Watchdog timer Programmable 8-bit counter/timer 7 Bytes of battery-backed user SRAM Battery low flag Power-down time stamp (HT Bit) Low operating current of 80µA...
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● 2.0 to 5.5V clock operating voltage Ultra-low battery supply current of 365nA Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century Programmable clock calibration (analog and digital) 18 QFN16, 4mm x 4mm (QA)
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● Automatic switch-over and reset output circuitry (fixed reference) – M41T93S: VCC = 3.0V to 5.5V (2.85V ≤VRST ≤3.00V) – M41T93R: VCC = 2.7V to 5.5V (2.55V ≤VRST ≤2.70V) – M41T93Z: VCC = 2.38V to 5.50V (2.25V ≤VRST ≤2.38V) Compatible with SPI Bus serial interface (positive clock SPI modes) Programmable alarm with interrupt function (valid even during battery back-up mode) Optional 2nd programmable alarm available Square wave output (defaults to 32kHz on power-up) RESET (RST) output Watchdog timer Programmable 8-bit counter/timer 7 Bytes of battery-backed user SRAM Battery low flag Power-down time stamp (HT Bit) Low operating current of 80µA...
