产品概述
描述
The M41TC8025 is a serial I2C real-time clock (RTC) incorporating temperature compensation to maintain accurate timekeeping over the extended temperature range of -45 to +70 °C or the industrial temperature range of -40 to +85 °C. In addition to providing date and time (seconds, minutes, hours, day-of-week, date (day of month), month and year), the device also provides an alarm function, fixed-cycle timer, time update interrupt and programmable frequency outputs (1 Hz, 1 KHz and 32 KHz).
The M41TC8025 is provided in a 200-mil, 14-pin SOIC package.
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所有功能
- Embedded high-stability 32 KHz DTCXO
- Accuracy: ±3.8 ppm max from 0 to 50°C
- Supply voltage: 1.6 to 5.5 V
- Current: 0.8 μA typical at 3.0 V
- 400 kHz I2C interface
- Time-of-day alarm (with interrupt)
- Fixed-cycle timer interrupt function
- Time update interrupt function
- Programmable frequency output: 1 Hz, 1 KHz and 32 KHz
- Registers for seconds, minutes, hours, day-of-week, date (day of month), month and year with automatic leap year compensation
- Programmable temperature compensation intervals: 0.5 s, 2 s (default), 10 s, 30 s