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부품번호 | M41T60 기능 |
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기능 | Serial Access Real-Time Clock | ||
제조업체 | ST Microelectronics | ||
로고 | |||
전체 23 페이지수
www.DataSheet4U.com
M41T60
Serial Access Real-Time Clock
FEATURES SUMMARY
■ 350nA TIMEKEEPING CURRENT @ 3V
■ TIMEKEEPING DOWN TO 1.0V
■ 1.3V TO 3.6V I2C BUS OPERATING
VOLTAGE
■ COUNTERS FOR SECONDS, MINUTES,
HOURS, DAY, DATE, MONTH, YEARS, AND
CENTURY
■ SERIAL INTERFACE SUPPORTS I2C BUS
(400kHz)
■ SOFTWARE CLOCK CALIBRATION
■ LOW OPERATING CURRENT OF 35µA
■ OSCILLATOR STOP DETECTION
■ AUTOMATIC LEAP YEAR COMPENSATION
■ SOFTWARE PROGRAMMABLE OUTPUT
(OUT)
■ OPERATING TEMPERATURE OF –40 TO
85°C
■ LEAD-FREE 16-PIN QFN PACKAGE
■ TOTAL SURFACE AREA OF IC AND 32KHz
CRYSTAL IS 21.5mm2
Figure 1. Package
QFN16 (Q)
Figure 2. 32KHz Crystal + QFN16 vs. VSOJ20
VSOJ20 (47.6mm2)
GND Plane Guard Ring (21.5mm2)
SMT
CRYSTAL
1 XI
2 XO
3
4 ST QFN16
AI11107
Figure 3. 16-pin QFN Connections
Note: 1. Open Drain Output.
16 15 14 13
XI 1
12 NC
XO 2
11 OFIRQ/OUT(1)
VSS 3
10 SCL
FT(1) 4
9 SDA
5678
AI08870
May 2005
1/23
M41T60
SUMMARY DESCRIPTION
The M41T60 Serial Access TIMEKEEPER® is a
low power Serial RTC with a built-in 32.768kHz os-
cillator (external crystal controlled). Eight registers
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 bi-directional bus. The built-in address
register is incremented automatically after each
WRITE or READ data byte.
The eight clock address locations contain the cen-
tury, year, month, date, day, hour, minute, and
second; in 24-hour BCD format. Corrections for
28-, 29- (leap year), 30-, and 31-day months are
made automatically.
The M41T60 is supplied in 16-lead QFN package.
Figure 4. Logic Diagram
VCC
XI
XO
SCL
SDA
M41T60
VSS
Note: 1. Open Drain
FT(1)
OFIRQ/OUT(1)
AI08869
Table 1. Signal Names
XI Oscillator Input
XO Oscillator Output
FT
Frequency Test Output (Open
Drain)
SDA
Serial Data Address Input /
Output
SCL
Serial Clock
OFIRQ/OUT
Oscillator Fail Interrupt/OUT
Output (Open Drain)
VCC Supply Voltage
VSS Ground
4/23
4페이지 Figure 7. Serial Bus Data Transfer Sequence
DATA LINE
STABLE
DATA VALID
CLOCK
M41T60
DATA
START
CONDITION
CHANGE OF
DATA ALLOWED
Figure 8. Acknowledgement Sequence
SCLK FROM
MASTER
START
1
DATA OUTPUT
BY TRANSMITTER
DATA OUTPUT
BY RECEIVER
MSB
2
STOP
CONDITION
AI00587
CLOCK PULSE FOR
ACKNOWLEDGEMENT
89
LSB
AI00601
7/23
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구 성 | 총 23 페이지수 | ||
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
M41T60 | Serial Access Real-Time Clock | ST Microelectronics |
M41T62 | (M41T62 - M41T65) Serial Access Real-Time Clock | ST Microelectronics |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |