The M41T01 is a low-power serial real-time clock

(RTC). The built-in 32.768 kHz oscillator circuit

works with an external crystal and does not need

any load capacitors.

The M41T01 clock has a built-in power sense

circuit which detects power failures and

automatically switches to the battery supply

during power failures. Eight bytes of the RAM are

used for the clock/calendar function and are

configured in binary-coded decimal (BCD) format.

Addresses and data are transferred serially via a

two-line bidirectional bus. The built-in address

register is incremented automatically after each

WRITE or READ data byte. The energy needed to

sustain the RAM and clock operations can be

supplied from a small lithium coin cell.

Typical data retention time is in excess of 5 years

with a 50 mA/h 3 V lithium cell. The M41T01 is

supplied in an 8-lead plastic small outline

package.

Features

 2.0 to 5.5 V clock operating voltage

 Counters for seconds, minutes, hours, day,

date, month, years, and century

 Software clock calibration

 Automatic switchover and deselect circuitry

 Ultra-low battery supply current of 800 nA

 Low operating current of 300 μA

 Battery and capacitor backup

 Battery backup not recommended for 3.0 V

applications (capacitor backup only)

 Operating temperature of –40 to 85 °C

 Automatic leap year compensation

M41T01M6F 制造商: STMicroelectronics

产品种类: 实时时钟

安装风格: SMD/SMT

封装 / 箱体: SO-8

RTC 总线接口: Serial, 2-Wire, I2C

电池备用开关: Backup Switching

RTC 存储容量: 8 B

电源电压-最大: 5.5 V

电源电压-最小: 2 V

最小工作温度: - 40 C

最大工作温度: + 85 C

M41T01M6F

功能: Calendar, Clock  

产品: Real Time Clocks  

系列: M41T01  

商标: STMicroelectronics  

产品类型: Real Time Clock  

工厂包装数量: 2500  

子类别: Clock & Timer ICs  

单位重量: 506.600 mg