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M41T62 데이터시트 PDF




ST Microelectronics에서 제조한 전자 부품 M41T62은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 M41T62 자료 제공

부품번호 M41T62 기능
기능 (M41T62 - M41T65) Serial Access Real-Time Clock
제조업체 ST Microelectronics
로고 ST Microelectronics 로고


M41T62 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.




전체 30 페이지수

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M41T62 데이터시트, 핀배열, 회로
www.DataSheet4U.com
M41T62, M41T63
M41T64, M41T65
Serial Access Real-Time Clock with Alarms
Feature summary
Counters for tenths/hundredths of seconds,
seconds, minutes, hours, day, date, month,
year, and century
32 KHz crystal oscillator integrating load
capacitance and high crystal series resistance
operation
Oscillator stop detection monitors clock
operation
Serial interface supports I2C bus (400kHz)
350nA timekeeping current @ 3V
Low operating current of 35µA (@400kHz)
Timekeeping down to 1.0V
1.3V to 4.4V I2C bus operating voltage
32KHz square wave on power-up to drive a
microcontroller in low power mode
(M41T62/63/64)
Programmable (1Hz to 32KHz) square wave
(M41T63/64)
Programmable alarm with interrupt function
(M41T62/65)
Accurate programmable watchdog
(from 62.5ms to 31 min)
Software clock calibration to compensate
deviation of crystal due to temperature
Automatic leap year compensation
QFN16 (Q) 3mm x 3mm
VSOJ20 (47.6mm2)
GND Plane Guard Ring (21.5mm2)
SMT
CRYSTAL
1 XI
2 XO
3
4 ST QFN16
AI11107
32KHz crystal + QFN 16 vs. VSOJ20
Operating temperature of –40 to 85°C
Lead-free 16-pin QFN package
Lithium ion rechargeable operation
Table 1. Device options
Basic RTC Alarms
M41T62
M41T63
M41T64
M41T65
Table 1
OSC fail
detect
Watchdog
timer
Calibration
SQW
output
✔ ✔✔
✔ ✔✔
✔ ✔✔
✔✔
IRQ WDO F32K
output output output
✔✔
August 2006
Rev 11
1/41
www.st.com
1




M41T62 pdf, 반도체, 판매, 대치품
List of figures
List of figures
M41T62/63/64/65
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
M41T62 logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
M41T64 logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
M41T63 logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
M41T65 logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
M41T62 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
M41T63 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
M41T64 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
M41T65 connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
M41T62 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
M41T63 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
M41T64 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
M41T65 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Hardware hookup for SuperCap™ back-up operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Serial bus data transfer sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Acknowledgement sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Slave address location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
READ mode sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Alternative READ mode sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
WRITE mode sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Crystal accuracy across temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Calibration waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Alarm interrupt reset waveform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
AC measurement I/O waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Crystal isolation example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Bus timing requirements sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
QFN16 – 16-lead, Quad, Flat Package, no Lead, 3x3mm body size, outline . . . . . . . . . . . 35
QFN16 – 16-lead, Quad, Flat Package, no Lead, 3x3mm, recommended footprint. . . . . . 36
32KHz crystal + QFN16 vs. VSOJ20 mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4/40

4페이지










M41T62 전자부품, 판매, 대치품
M41T62/63/64/65
Figure 4. M41T65 logic diagram
VCC
Summary description
XI
XO
SCL
SDA
M41T65
WDO(1)
IRQ/FT/OUT(1)
1. Open drain.
Figure 5. M41T62 connections
VSS
AI09109
16 15 14 13
XI 1
12 NC
XO 2
11 IRQ/OUT(2)
VSS 3
10 SCL
SQW(1) 4
9 SDA
5678
1. SQW output defaults to 32KHz upon power-up.
2. Open drain.
AI09100
7/40

7페이지


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일반 IC 문의 : 샘플 및 소량 구매
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