The M41T00CAP is a low-power serial real-time clock (RTC) with integral battery and crystal in ST’s 24-pin CAPHAT™ package. It includes a crystal controlled, 32.768 kHz oscillator and has a built-in power sense circuit which detects power failures and automatically switches to the backup battery when a power failure occurs.
Eight registers comprise the clock/calendar function and are configured in binary-coded decimal (BCD) format. Addresses and data are transferred serially via an industry standard, two line, 400 kHz, bidirectional I2C interface. The built-in address register is incremented automatically after each WRITE or READ data byte. The internal lithium coin cell contains ample energy to sustain timekeeping operation for 10 years in the absence of system power. The eight clock address locations contain the century, year, month, date, day, hour, minute, and second in 24-hour BCD format. Corrections for the number of days in a month, including leap year, are made automatically (leap year valid up to year 2100).
|DS5772: Serial access real-time clock (RTC) with integral backup battery and crystal||6.0||390 KB|
|AN3060: Applications guide for serial real-time clocks (RTCs)||3.0||878 KB|
|AN1011: Battery technology used in NVRAM and real-time clock (RTC) products from ST||4.0||248 KB|
|AN934: How to use the digital calibration feature in TIMEKEEPER® and serial real-time clock (RTC) products||4.1||123 KB|
|AN4641: Integrating TIMEKEEPER® and real-time clock supervisor functions||1.0||479 KB|
|AN923: Managing century information using serial real-time clocks and TIMEKEEPER® NVRAMs||4.0||142 KB|
|AN1572: Power-down time-stamp function in serial real-time clocks (RTCs)||2.0||171 KB|
|AN1336: Power-fail comparator for NVRAM supervisory devices||2.0||127 KB|
|Serial real-time clock ICs||1.0||827 KB|
|Products Underwriter Laboratories (UL) Information||2.1||543 KB|
|Part Number||Package||Packing Type||Operating Temperature (°C) (min)||Operating Temperature (°C) (max)||Marketing Status||Unit Price (US$) *||Quantity||NVRAM size (B)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|M41T00CAPPC1||PDIP 24 .7||Tube||0||70||Active : Product is in volume production||-||1000||-||EAR99||MALAYSIA||MORE INFO||Free Sample Add to cart||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
|M41T00CAPPC1||Active||PDIP 24 .7||Industrial||Ecopack1|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.