Overview
The M41T83RMY6E, produced by STMicroelectronics, is a low-power serial I²C real-time clock (RTC) with a built-in 32.768 kHz oscillator. This component is designed for applications requiring precise timekeeping and low power consumption. It features automatic switchover to a battery supply in case of a power failure, ensuring continuous operation. The M41T83RMY6E is available in various packages, including SO18 with an embedded crystal, which simplifies the design process by eliminating the need for an external crystal.
Key Specifications
| Specification | Value |
|---|---|
| Supply Voltage Min | 2.38 V |
| Supply Voltage Max | 5.5 V |
| Operating Temperature Min | -40 °C |
| Operating Temperature Max | 85 °C |
| Package | SO18 with embedded crystal |
| RTC Memory Size | 32 B |
| Battery Backup Switching | Backup Switching |
| RoHS Compliance | Ecopack1 |
| Grade | Industrial |
| Packing Type | Tape And Reel |
| ECCN US | EAR99 |
| ECCN EU | NEC |
Key Features
- Ultra-low battery supply current of 365 nA
- Factory-calibrated accuracy of ±5 ppm typical after 2 reflows (SOX18)
- Programmable analog and digital calibration circuits for better accuracy
- Serial I²C bus interface (400 kHz protocol)
- Programmable alarm with interrupt function (valid even during battery backup mode)
- Optional second programmable alarm
- Square wave output defaults to 32 KHz on power-up
- RESET (RST) output
- Watchdog timer
- Programmable 8-bit counter/timer
- 7 bytes of battery-backed user SRAM
- Battery low flag
- Low operating current of 80 μA
- Oscillator stop detection
- Battery or SuperCap™ backup
Applications
The M41T83RMY6E is suitable for a variety of applications that require precise timekeeping and low power consumption, such as:
- Industrial control systems
- Medical devices
- Consumer electronics
- Automotive systems
- IoT devices
Q & A
- What is the operating voltage range of the M41T83RMY6E?
The operating voltage range is from 2.38 V to 5.5 V. - What is the operating temperature range of the M41T83RMY6E?
The operating temperature range is from -40 °C to 85 °C. - Does the M41T83RMY6E have a built-in oscillator?
Yes, it has a built-in 32.768 kHz oscillator, with the SOX18 package featuring an embedded crystal. - What is the battery supply current of the M41T83RMY6E?
The battery supply current is ultra-low at 365 nA. - Does the M41T83RMY6E support I²C communication?
Yes, it supports the I²C bus protocol with a 400 kHz frequency. - What additional features does the M41T83RMY6E offer besides timekeeping?
It offers features such as programmable alarms, watchdog timer, 8-bit counter, square wave output, and 7 bytes of battery-backed user SRAM. - Is the M41T83RMY6E RoHS compliant?
Yes, it is RoHS compliant with an Ecopack1 grade. - What is the package type of the M41T83RMY6E?
The package type is SO18 with an embedded crystal. - How does the M41T83RMY6E handle power failures?
It automatically switches to the battery supply in case of a power failure. - What is the ECCN classification for the M41T83RMY6E?
The ECCN US classification is EAR99, and the ECCN EU classification is NEC.
