STMicroelectronics M41T66Q6F Real Time Clocks
Real Time Clock (RTC) IC Clock/Calendar I2C, 2-Wire Serial 16-VFQFN Exposed Pad
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
M41T66Q6F
Detailed Description
IC RTC CLK/CALENDAR I2C 16-QFN
Package
16-VFQFN Exposed Pad
Key Features
Package / Case: 16-VFQFN Exposed Pad; Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
M41T66Q6F Datasheet
Quick Jump:
Technical Specifications
STMicroelectronics M41T66Q6F Real Time Clocks technical specifications.
General
Series
Timekeeper®
Interface
I²C, 2-Wire Serial
Package / Case
16-VFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Supply Voltage
1.5V ~ 4.4V
Lifecycle Status
Obsolete
Features
Alarm, Leap Year, Square Wave Output, Watchdog Timer
Type
Clock/Calendar
Time Format
HH:MM:SS:hh (24 hr)
Alternate Parts Comparison (M41T66Q6F vs DS1687-3+ vs M41T94MH6F vs M41T83SQA6F)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 16-VFQFN Exposed Pad | 24-DIP Module | 28-SOP | 16-VQFN Exposed Pad |
| Mounting Type | Surface Mount | Through Hole | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Supply Voltage | 1.5V ~ 4.4V | 2.7V ~ 3.7V | 2.7V ~ 5.5V | 3V ~ 5.5V |
| Interface | I²C, 2-Wire Serial | Parallel | SPI | I²C, 2-Wire Serial |
| Current Timekeeping Max | 0.9µA ~ 1.1µA @ 1.5V ~ 4.4V | 2mA @ 3V | 1.4mA @ 2.7V ~ 5.5V | 10µA @ 5.5V |
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd |
| Features | Alarm, Leap Year, Square Wave Output, Watchdog Timer | Alarm, NVSRAM, Square Wave Output, Y2K | Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer |
| Time Format | HH:MM:SS:hh (24 hr) | HH:MM:SS (12/24 hr) | HH:MM:SS:hh (24 hr) | HH:MM:SS:hh (24 hr) |
| Type | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar |
| Memory Size | -- | 242B | 44B | 7B |
| Voltage Supply Battery | -- | 2.5V ~ 3.7V | 2.5V ~ 3.5V | 2V ~ 5.5V |
| Action |
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