Product overview
描述
The M41T80 is a low power serial RTC with a built-in 32.768 kHz oscillator (external crystal controlled). Eight registers are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. An additional 12 registers provide status/control of alarm, 32 KHz output, and square wave functions. Addresses and data are transferred serially via a two line, bi-directional I2C interface. The built-in address register is incremented automatically after each WRITE or READ data byte. Functions available to the user include a time-of-day clock/calendar, alarm interrupts, 32 KHz output, and programmable square wave output. The eight clock address locations contain the century, year, month, date, day, hour, minute, second and tenths/hundredths of a second in 24-hour BCD format. Corrections for 28, 29 (leap year - valid until year 2100), 30 and 31 day months are made automatically.The M41T80 is supplied in an 8-pin SOIC.
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All features
- Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century
- 32 KHz crystal oscillator integrating load capacitance (12.5 pF) providing exceptional oscillator stability and high crystal series resistance operation
- Serial interface supports I2C bus (400 kHz)
- 2.0 to 5.5 V clock operating voltage
- 32 KHz square wave on power-up to drive a microcontroller in low-power mode
- Programmable (1 Hz to 32 KHz) square wave
- Programmable alarm and interrupt function
- Low operating current of 200 μA
- Operating temperature of –40 to 85 °C
- ECOPACK®package available
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All tools & software
All resources
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产品规格 (1)
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| 19 Sep 2016 |
19 Sep 2016
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应用手册 (5 of 8)
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手册 (1)
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| 26 Feb 2020 |
26 Feb 2020
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - M41T80
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
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样片和购买
| 产品型号 | 从分销商订购 | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | NVRAM size (B) | Country of Origin | Budgetary Price (US$)*/Qty | 更多信息 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||||
| M41T80M6F | 5 distributors | Free Sample Buy Direct |
批量生产
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EAR99 | NEC | Tape And Reel | SO-8 | -40 | 85 | - | MOROCCO | 0.941 / 1k | ||
