參數(shù)資料
型號： M41T64
廠商： 意法半導體
英文描述： Serial Access Real-Time Clock with Alarms
中文描述： 串行訪問實時時鐘與鬧鐘
文件頁數(shù)： 1/33頁
文件大?。?/td> 670K
代理商： M41T64
1/33
May 2005
M41T62, M41T63
M41T64, M41T65
Serial Access Real-Time Clock with Alarms
FEATURES SUMMARY
350nA TIMEKEEPING CURRENT @ 3V
TIMEKEEPING DOWN TO 1.0V
1.3V TO 3.6V I
2
C BUS OPERATING
VOLTAGE
COUNTERS FOR TENTHS/HUNDREDTHS
OF SECONDS, SECONDS, MINUTES,
HOURS, DAY, DATE, MONTH, YEAR, AND
CENTURY
SERIAL INTERFACE SUPPORTS I
2
C BUS
(400kHz)
PROGRAMMABLE ALARM WITH FLAG BIT
ONLY (M41T63/64)
PROGRAMMABLE ALARM WITH FLAG BIT
AND INTERRUPT FUNCTION (M41T62/65)
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
OPERATING TEMPERATURE OF –40 TO
85°C
LEAD-FREE 16-PIN QFN PACKAGE
TOTAL SURFACE AREA OF IC AND 32KHz
CRYSTAL IS 21.5mm
2
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■
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Figure 1. Package
Figure 2. 32KHz Crystal + QFN16 vs. VSOJ20
Table 1. Device Options
QFN16 (Q)
3mm x 3mm
1
XI
2
XO
3
4
AI11107
ST QFN16
SMT
CRYSTAL
VSOJ20 (47.6mm2)
Guard Ring(21.5mm2)
GND Plane
Basic RTC
Alarms
OSC Fail
Detect
Watchdog
Timer
Calibration
SQW
Output
IRQ
Output
WDO
Output
F
32K
Output
M41T62
M41T63
M41T64
M41T65
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相關代理商/技術參數(shù)
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M41T66 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial access real-time clock with alarms
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