M41T81M6TR 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

M41T81M6TR

SERIAL ACCESS RTC WITH ALARMS

STMicroelectronics 

M41T81

SERIAL ACCESS RTC WITH ALARMS

FEATURES SUMMARY

s 2.0 TO 5.5V CLOCK OPERATING VOLTAGE

s COUNTERS FOR TENTHS/HUNDREDTHS

OF SECONDS, SECONDS, MINUTES,

HOURS, DAY, DATE, MONTH, YEAR, and

CENTURY

s AUTOMATIC SWITCH-OVER and DESELECT

CIRCUITRY

s SERIAL INTERFACE SUPPORTS I2C BUS

(400KHz PROTOCOL)

s PROGRAMMABLE ALARM and INTERRUPT

FUNCTION (valid even during Battery Back-up

Mode)

s WATCHDOG TIMER

s LOW OPERATING CURRENT OF 400µA

s BATTERY BACK-UP NOT RECOMMENDED

FOR 3.0V APPLICATIONS (CAPACITOR

BACK-UP ONLY)

s BATTERY OR SUPER-CAP BACK-UP

s OPERATING TEMPERATURE OF –40 TO

85°C

s ULTRA-LOW BATTERY SUPPLY CURRENT

OF 1µA

s PACKAGE OPTIONS INCLUDE A 28-LEAD or

18-LEAD EMBEDDED CRYSTAL SOIC

Figure 1. 8-pin SOIC Package

8

1

SO8 (M)

Figure 2. 28-pin (300mil) SOIC Package*

EMBEDDED Crystal

SOX28 (MX)

Figure 3. 18-pin (300mil) SOIC Package*

EMBEDDED Crystal

18

1

SOX18 (MY)

September 2003

Rev. 2.0

1/28

Share Link: