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产品名称：M41T82
产品封装：SOP-8
产品品牌：STMicroelectronics
PDF文档：下载
库 存：查看
电 话：0755-83035811
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产品介绍
M41T82
Features
- Ultra-low battery supply current of 365 nA
- Factory-calibrated accuracy of ±5 ppm typical after 2 reflows (SOX18)
- Much better accuracies achievable using built-in programmable analog and digital calibration circuits
- 2.0 V to 5.5 V clock operating voltage
- Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century
- Automatic switchover and reset output circuitry (fixed reference)
- VCC= 2.38 V to 5.50 V (2.25 V ≤ VRST≤ 2.38 V)
- Serial interface supports I2C bus (400 kHz protocol)
- Programmable alarm with interrupt function (valid even during battery backup mode)
- Optional 2ndprogrammable alarm available
- Square wave output defaults to 32 KHz on power-up (M41T83 only)
- 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
- Operating temperature of –40 °C to 85 °C
- Package options
- an 8-lead SOIC (M41T82), or
- an 18-lead embedded crystal SOIC (M41T83)
- RoHS compliance: lead-free components are compliant with the RoHS directive
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