M41T65Q6F

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M41T65Q6F

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IC RTC CLK/CALENDAR I2C 16-QFN

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Thông số kỹ thuật

thuộc tính Giá trị
Package Tape & Reel (TR),Cut Tape (CT)
Series Timekeeper®
ProductStatus Obsolete
Type Clock/Calendar
Features Alarm, Leap Year, Watchdog Timer
TimeFormat HH:MM:SS:hh (24 hr)
DateFormat YY-MM-DD-dd
Interface I²C, 2-Wire Serial
Voltage-Supply 1.3V ~ 4.4V
Current-Timekeeping(Max) 0.7µA ~ 0.95µA @ 1.3V ~ 4.4V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 16-VFQFN Exposed Pad

Tổng quan

Description

The M41T65Q6F is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator and a 400 kHz I²C interface. It provides accurate timekeeping with seconds, minutes, hours, day, date, month, and year functions, including leap-year compensation up to 2100.
Key features:
- Ultra-low power consumption (0.8 µA typical in battery mode).
- Battery backup support for continuous operation.
- Alarm and timer functions with interrupt capability.
- Wide voltage range (1.3V to 4.4V), suitable for battery-powered applications.
- Industrial temperature range (-40°C to +85°C).
Common applications include embedded systems, IoT devices, and industrial equipment requiring reliable timekeeping. The compact SO8 package makes it ideal for space-constrained designs.
For detailed specifications, refer to the datasheet from STMicroelectronics.

Equivalent

Equivalent products to the M41T65Q6F (a real-time clock chip by STMicroelectronics) include:
- DS3231 (Maxim Integrated) - Higher accuracy.
- PCF8563 (NXP) - Lower cost, I²C interface.
- RX-8900 (Epson) - Ultra-low power, I²C/SPI.
- MCP7940N (Microchip) - Battery backup, I²C.
These alternatives offer similar RTC functionality with varying features like accuracy, interfaces, and power consumption.

Features

The M41T65Q6F is a low-power serial real-time clock (RTC) with key features:
- I²C Interface: Supports 400 kHz communication.
- Battery Backup: Operates down to 1.3V for extended power-off retention.
- Timekeeping Accuracy: ±2 ppm (0.17 sec/day) at 25°C.
- Low Power: 400nA in battery mode.
- Wide Temp Range: -40°C to +85°C.
- Integrated Oscillator: Includes a 32.768 kHz crystal for precise timing.
- Alarms & Timers: Programmable alarms and watchdog timer.
- Small Package: SO8 footprint for compact designs.
Ideal for embedded systems needing reliable, low-power timekeeping.

Pinout

The M41T65Q6F is a serial real-time clock (RTC) with 8 pins in an SOIC-8 package.
Key Functions:
- I²C interface (pins: SDA, SCL) for communication.
- Battery backup (VBAT) for timekeeping during power loss.
- 32.768 kHz crystal oscillator (X1, X2) for accurate timekeeping.
- Programmable alarms & timers.
- Low power consumption (typical 350nA in battery mode).
Pinout (SOIC-8):
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. SQW/FT – Frequency output/alarm
8. VCC – Power supply (1.8V–5.5V)
Compact and reliable for embedded systems requiring timekeeping.

Manufacturer

The M41T65Q6F is a real-time clock (RTC) chip manufactured by STMicroelectronics.
STMicroelectronics is a multinational semiconductor company headquartered in Switzerland. It designs and produces a wide range of electronics, including microcontrollers, sensors, power management ICs, and memory solutions. The company serves industries like automotive, industrial, consumer electronics, and IoT.
The M41T65Q6F is a low-power serial RTC with battery backup, commonly used in embedded systems for timekeeping.

Application

The M41T65Q6F is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator. Its key application areas include:
- Consumer Electronics: Smart TVs, set-top boxes, wearables.
- Industrial Systems: Automation, data loggers, sensors.
- Automotive: Infotainment, telematics, dashboard clocks.
- Medical Devices: Portable monitors, diagnostic equipment.
- IoT & Smart Home: Smart meters, security systems.
It provides accurate timekeeping, battery backup, and low power consumption, making it ideal for embedded systems requiring reliable time/date functions.

Package

The M41T65Q6F is a real-time clock (RTC) IC from STMicroelectronics. It comes in a QFN-16 (Quad Flat No-Lead) package with 16 pins, measuring 4mm x 4mm. This compact, surface-mount package is suitable for space-constrained applications, offering reliable timekeeping with low power consumption. The QFN design enhances thermal and electrical performance.

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