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STMICROELECTRONICS M41T94MQ6F Serial Real-Time Clock
The M41T94 is a highly accurate serial real-time clock with 44 bytes of NVRAM, integrated 32.768 kHz crystal oscillator, and multiple user-accessible features including alarm, watchdog timer, and square wave output. Designed for industrial and embedded applications, it offers seamless power fail detection, automatic switch-over to a backup battery, and programmable alarm settings. Its compact 28-lead SOIC package facilitates easy surface mounting, making it suitable for space-constrained devices requiring precise timekeeping, reliable power management, and versatile communication through a serial SPI interface.
STMICROELECTRONICS M41T94MQ6F Serial Real-Time Clock Specifications:
- Package: 28-lead SOIC with SNAPHAT top (battery & crystal integrated separately)
- Supply Voltage: 2.7 to 5.5 V (Vcc)
- Crystal Frequency: 32.768 kHz external crystal
- Clock Accuracy: ±35 ppm without calibration, ±2 ppm with calibration
- Memory: 44 bytes of NVRAM, 8 bytes of SRAM for clock/calendar
- Alarm: Programmable with mask modes for seconds, minutes, hours, date, month
- Watchdog Timer: Programmable from 62.5 ms to 128 s, resolution bits BMB0–BMB4
- Square Wave Output: Programmable frequency from 1 Hz to 32768 Hz, enabled via SQWE bit
- Features: Power fail detection, automatic switch-over, battery backup with low-voltage warning
- Power Consumption: Ultra-low during battery backup mode, typical 500 nA
- Interfaces: SPI compatible (2 MHz), open-drain output for reset and square wave
- Operating Temperature Range: -40°C to +85°C
- Environmental Compliance: RoHS, ECOPACK®
- Electrical: Input voltage: 0.2 V to 5.5 V, Output voltage: 0.4 V (low) to Vcc (high), VBAT voltage: ~2.5 V min
- Mechanical: 28-pin SOIC, 4.0 mm pitch, mechanical outline provided in datasheet
- Additional: Century bit for automatic century toggle, calibration register for oscillator tuning, reset inputs for external reset signals
Buy the Buy STMicroelectronics M41T94 Part Number M41T94MQ6F Online
Discover the high-precision M41T94 serial real-time clock, featuring integrated NVRAM, programmable alarms, watchdog timer, and battery backup. Engineered with a 32.768 kHz crystal oscillator, it offers superior accuracy within ±2 ppm when calibrated, making it ideal for industrial and embedded applications. Its compact 28-lead SOIC package supports easy surface mounting. The device automatically switches to backup battery during power failures and includes features like power fail detection, programmable square wave output, and automation for century toggling, ensuring seamless and reliable timekeeping across diverse environments.
Order your STMicroelectronics M41T94 serial real-time clock today and ensure your projects have precise timekeeping, reliable backup, and flexible alarm functions.
Frequently Asked Questions
Where can I buy STMICROELECTRONICS M41T94MQ6F?
You can click on the BUY or RFQ button to purchase M41T94MQ6F from an authorized STMICROELECTRONICS distributor.
How do I troubleshoot issues or seek technical support for part M41T94MQ6F?
You can download the M41T94MQ6F datasheet or visit the STMICROELECTRONICS website for support.
Who is the manufacturer of M41T94MQ6F?
STMICROELECTRONICS