The M41T94 is a Serial Real Time Clock with 44 bytes of NVRAM and a RESET output. A built-in 32,768Hz oscillator (external crystal controlled) and 8 bytes of the SRAM are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. The M41T94 is a serial real-time clock with 44 bytes of NVRAM and a RESET output. A built-in 32,768 Hz oscillator (external crystal controlled) and 8 bytes of the SRAM are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. An additional 12 bytes of RAM provide status/control of alarm, watchdog and square wave functions. Addresses and data are transferred serially via a serial SPI interface.
STMicroelectronics M41T94 series RTCs
Comprehensive Guide to M41T94 Integrated Circuits (ICs) RTCs
This post introduces you to the Key Component Features, Diverse Applications, Associated Series Parts, Technical Documents(PDF Datasheets, User Guides), Frequently asked questions, and Related Series of STMicroelectronics M41T94 series RTCs products.
FEATURES
- The M41T94 is a serial real-time clock with 44 bytes of NVRAM and a RESET output
Applications
- Industrial transport (non-car & non-light truck)
- Medical
Associated Products
| Part Number | Description | Stock | RFQ |
|---|---|---|---|
| M41T94MH6E | STMICROELECTRONICS M41T94MH6E IC, RTC, YYYY-MM-DD-dd, 64 X 8, SOIC-28 | 0 | RFQ |
| M41T94MQ6E | STMICROELECTRONICS M41T94MQ6E SERIAL RTC SPI, SMD, 41T94, SOIC16 | 1 | RFQ |
| M41T94MH6F | M41T94 Series 2.7 to 5.5 V SPI Serial Real Time Clock Surface Mount - SOIC-28 | 1872 | RFQ |
| M41T94MQ6F | IC RTC CLK/CALENDAR SPI 16-SOIC | 5000 | RFQ |
Related Series
Maxim Integrated, Inc. DS1307 series interface
04 March 2023348
STMicroelectronics M41T94 series RTCs
01 August 202367
Frequently Asked Questions
What are the similar products or Substitute Components of STMicroelectronics M41T94 series RTCs
Maxim Integrated DS3231: This is a highly accurate RTC with integrated temperature-compensated crystal oscillator (TCXO). It has a similar I2C interface and operates over the same temperature range as the M41T94. NXP Semiconductors PCF2123: This is a low-power RTC with integrated temperature sensor and crystal oscillator. It has a similar I2C interface and temperature range as the M41T94.
How do I use M41T94 in my circuit design?
The M41T94 is a serial real-time clock with 44 bytes of NVRAM and a RESET output. A built-in 32,768 Hz oscillator (external crystal controlled) and 8 bytes of the SRAM are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. An additional 12 bytes of RAM provide status/control of alarm, watchdog and square wave functions. Addresses and data are transferred serially via a serial SPI interface. The built-in address register is incremented automatically after each WRITE or READ data byte.