Technical Specifications
Parameters and characteristics for this part
| Specification | M41T80M6F |
|---|---|
| Current - Timekeeping (Max) [Max] | 31 µA |
| Current - Timekeeping (Max) [Min] | 2.4 µA |
| Date Format | YY-MM-DD-dd |
| Features | Square Wave Output, Alarm, Leap Year |
| Interface | I2C, 2-Wire Serial |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 C |
| Package / Case | 0.154 in |
| Package / Case | 8-SOIC |
| Package / Case | 3.9 mm |
| Supplier Device Package | 8-SOIC |
| Time Format | HH:MM:SS:hh (24 hr) |
| Type | Clock/Calendar |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 2 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 5046 | $ 4.62 | |
Description
General part information
M41T80 Series
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.
Documents
Technical documentation and resources
