Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | Timekeeper® |
| Part Status | Obsolete |
| Type | Clock/Calendar |
| Features | Alarm, Leap Year, Square Wave Output, Watchdog Timer |
| Time Format | HH:MM:SS:hh (24 hr) |
| Date Format | YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial |
| Voltage - Supply | 1.5V ~ 4.4V |
| Current - Timekeeping(Max) | 0.9µA ~ 1.1µA @ 1.5V ~ 4.4V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Tổng quan
Description
The M41T66Q6F is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator and battery backup. Key features include:
- I²C Interface: Supports communication with microcontrollers.
- Battery Backup: Maintains timekeeping during power loss.
- Timekeeping Accuracy: Tracks seconds, minutes, hours, day, date, month, and year (with leap-year correction).
- Low Power Consumption: Ideal for battery-operated devices.
- Wide Voltage Range: Operates from 1.3V to 4.4V, making it versatile for various applications.
- Alarm & Timer Functions: Configurable interrupts for system wake-up.
- Industrial Temperature Range: Reliable performance in harsh environments.
Commonly used in embedded systems, IoT devices, and consumer electronics where precise timekeeping is essential. The compact SOIC-8 package ensures space-efficient PCB integration.
For detailed specifications, refer to the STMicroelectronics datasheet.
- I²C Interface: Supports communication with microcontrollers.
- Battery Backup: Maintains timekeeping during power loss.
- Timekeeping Accuracy: Tracks seconds, minutes, hours, day, date, month, and year (with leap-year correction).
- Low Power Consumption: Ideal for battery-operated devices.
- Wide Voltage Range: Operates from 1.3V to 4.4V, making it versatile for various applications.
- Alarm & Timer Functions: Configurable interrupts for system wake-up.
- Industrial Temperature Range: Reliable performance in harsh environments.
Commonly used in embedded systems, IoT devices, and consumer electronics where precise timekeeping is essential. The compact SOIC-8 package ensures space-efficient PCB integration.
For detailed specifications, refer to the STMicroelectronics datasheet.
Equivalent
The M41T66Q6F is a serial real-time clock (RTC) chip with battery backup. Equivalent alternatives include:
- DS3231 (Maxim Integrated) – Higher accuracy, I²C interface.
- PCF8563 (NXP) – I²C RTC with similar features.
- MCP7940N (Microchip) – I²C/SPI RTC with battery switchover.
- RX-8130CE (Epson) – Low-power I²C RTC.
These offer comparable timekeeping, alarms, and battery backup. Check pin compatibility and interface (I²C vs. SPI) for your design.
- DS3231 (Maxim Integrated) – Higher accuracy, I²C interface.
- PCF8563 (NXP) – I²C RTC with similar features.
- MCP7940N (Microchip) – I²C/SPI RTC with battery switchover.
- RX-8130CE (Epson) – Low-power I²C RTC.
These offer comparable timekeeping, alarms, and battery backup. Check pin compatibility and interface (I²C vs. SPI) for your design.
Pinout
The M41T66Q6F is a serial real-time clock (RTC) with 8 pins in an SOIC-8 package.
Key Functions:
- I²C interface for communication (pins: SDA, SCL).
- Battery backup (VBAT) for timekeeping during power loss.
- 32.768 kHz crystal oscillator (X1, X2) for accurate timekeeping.
- Programmable alarms and timestamps.
- Low power consumption for battery-operated applications.
Pinout Summary:
1. VBAT – Backup battery input
2. X1 – Crystal connection
3. X2 – Crystal connection
4. GND – Ground
5. SDA – I²C data line
6. SCL – I²C clock line
7. NC – No connect (reserved)
8. VCC – Power supply (1.8V–5.5V)
Compact and reliable for embedded systems requiring timekeeping.
Key Functions:
- I²C interface for communication (pins: SDA, SCL).
- Battery backup (VBAT) for timekeeping during power loss.
- 32.768 kHz crystal oscillator (X1, X2) for accurate timekeeping.
- Programmable alarms and timestamps.
- Low power consumption for battery-operated applications.
Pinout Summary:
1. VBAT – Backup battery input
2. X1 – Crystal connection
3. X2 – Crystal connection
4. GND – Ground
5. SDA – I²C data line
6. SCL – I²C clock line
7. NC – No connect (reserved)
8. VCC – Power supply (1.8V–5.5V)
Compact and reliable for embedded systems requiring timekeeping.
Manufacturer
The M41T66Q6F is a real-time clock (RTC) chip manufactured by STMicroelectronics, a multinational semiconductor company based in Switzerland.
STMicroelectronics specializes in designing and producing a wide range of semiconductor solutions, including microcontrollers, sensors, power management ICs, and memory devices. The company serves industries like automotive, industrial, consumer electronics, and IoT.
The M41T66Q6F is a low-power serial RTC with battery backup, commonly used in embedded systems for timekeeping.
STMicroelectronics specializes in designing and producing a wide range of semiconductor solutions, including microcontrollers, sensors, power management ICs, and memory devices. The company serves industries like automotive, industrial, consumer electronics, and IoT.
The M41T66Q6F is a low-power serial RTC with battery backup, commonly used in embedded systems for timekeeping.
Application
The M41T66Q6F is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator. Its key application areas include:
- Consumer Electronics: Smartwatches, wearables, and IoT devices for timekeeping.
- Industrial Systems: Automation, data loggers, and equipment requiring precise timing.
- Automotive: Infotainment systems, dashcams, and event recorders.
- Medical Devices: Portable health monitors and diagnostic equipment.
- Embedded Systems: Microcontroller-based projects needing battery-backed timekeeping.
Its low power consumption, I²C interface, and integrated oscillator make it ideal for battery-operated and space-constrained designs.
- Consumer Electronics: Smartwatches, wearables, and IoT devices for timekeeping.
- Industrial Systems: Automation, data loggers, and equipment requiring precise timing.
- Automotive: Infotainment systems, dashcams, and event recorders.
- Medical Devices: Portable health monitors and diagnostic equipment.
- Embedded Systems: Microcontroller-based projects needing battery-backed timekeeping.
Its low power consumption, I²C interface, and integrated oscillator make it ideal for battery-operated and space-constrained designs.
Package
The M41T66Q6F is a real-time clock (RTC) IC packaged in a QFN-16 (Quad Flat No-Lead) format. This compact, surface-mount package measures 4mm × 4mm with a height of 0.8mm, featuring 16 leads for connectivity. QFN packages offer good thermal and electrical performance, making them suitable for space-constrained applications.
