Datasheet > M41T62

M41T62

更新时间： 2022-11-24 21:53:15

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		闹钟时钟
页数	文件大小	规格书
33页	672K
描述
Serial Access Real-Time Clock with Alarms

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M41T62 数据手册

M41T62, M41T63

M41T64, M41T65

Serial Access Real-Time Clock with Alarms

FEATURES SUMMARY

■

350nA TIMEKEEPING CURRENT @ 3V

Figure 1. Package

TIMEKEEPING DOWN TO 1.0V

1.3V TO 3.6V I C BUS OPERATING

VOLTAGE

■

COUNTERS FOR TENTHS/HUNDREDTHS

OF SECONDS, SECONDS, MINUTES,

HOURS, DAY, DATE, MONTH, YEAR, AND

CENTURY

SERIAL INTERFACE SUPPORTS I C BUS

(400kHz)

PROGRAMMABLE ALARM WITH FLAG BIT

ONLY (M41T63/64)

PROGRAMMABLE ALARM WITH FLAG BIT

AND INTERRUPT FUNCTION (M41T62/65)

■

QFN16 (Q)

3mm x 3mm

■

LOW OPERATING CURRENT OF 35µA

SOFTWARE CLOCK CALIBRATION

OSCILLATOR STOP DETECTION

32KHz SQUARE WAVE ON POWER-UP

(M41T62/63/64)

WATCHDOG TIMER

WATCHDOG OUTPUT (M41T63/65)

AUTOMATIC LEAP YEAR COMPENSATION

Figure 2. 32KHz Crystal + QFN16 vs. VSOJ20

VSOJ20 (47.6mm )

(21.5mm )

GND Plane

Guard Ring

■

SMT

CRYSTAL

OPERATING TEMPERATURE OF –40 TO

85°C

ST QFN16

■

LEAD-FREE 16-PIN QFN PACKAGE

TOTAL SURFACE AREA OF IC AND 32KHz

AI11107

CRYSTAL IS 21.5mm

Table 1. Device Options

Basic RTC Alarms

OSC Fail Watchdog

SQW

IRQ

WDO

32K

Calibration

Detect

Timer

Output Output Output

Output

M41T62

M41T63

M41T64

M41T65

■

May 2005

1/33

12 3 4 5 6 7...33

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