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부품번호 | M41T56C64 기능 |
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기능 | Serial Real Time Clock | ||
제조업체 | STMicroelectronics | ||
로고 | |||
전체 19 페이지수
www.DataSheet4U.com
M41T56C64
Serial Real Time Clock with 56 bytes of NVRAM
+ 64 Kbit (8192 bit x 8) EEPROM
Feature summary
■ 5V ±10% supply voltage
■ I2C bus compatible
■ Operating temperature of –40 to 85°C
■ Packaging includes:
– 18-lead SOIC (with embedded crystal)
■ RoHS compliant
Serial RTC features
■ Counters for seconds, minutes, hours, day,
date, month, years, and century
■ Embedded crystal package
■ Software clock calibration
■ Automatic power-fail detect and switch circuitry
■ 56 bytes of general purpose SRAM
■ Ultra-low battery supply current of 450nA
■ Automatic leap year compensation
■ Special software programmable output
■ Two-wire I2C serial interface supports 100kHz
protocol
Serial EEPROM features
■ 8192 bytes of general purpose EEPROM
(more than 1e6 erase/write cycles)
■ Two-wire I2C serial interface supports 400kHz
protocol
■ Byte and page write (up to 32 bytes)
■ More than 40 year data retention
■ Self-timed programming cycle
Embedded crystal
18
1
SOX18(MY)
18-pin (300mil) SOIC
September 2006
Rev 4
1/19
www.st.com
1
List of figures
List of figures
www.DMat4a1ShTe5e6t4CU6.c4om
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
18-pin SOIC connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Crystal accuracy across temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
AC measurement I/O waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
AC Bus timing requirements sequence (serial RTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SOX18 – 18-lead plastic small outline, 300mils, embedded crystal . . . . . . . . . . . . . . . . . . 16
4/19
4페이지 M41T56C64
3 Application
www.DaAtpapShlieceat4tiUo.cnom
Figure 3. Block diagram
FT/OUT
VCC
VSS
VBAT
E0
E1
E2
SCL
SDA
OSCILLATOR
32.768 kHz
VOLTAGE
SENSE
and
SWITCH
CIRCUITRY
SERIAL
BUS
INTERFACE
DIVIDER
CONTROL
LOGIC
ADDRESS
REGISTER
Figure 4. Crystal accuracy across temperature
1 Hz
SECONDS
MINUTES
CENTURY/HOURS
DAY
DATE
MONTH
YEAR
CONTROL
56 x8
(SRAM)
M24C64
8192 x8
(EEPROM)
AI09125
Frequency (ppm)
20
0
–20
–40
–60
–80
–100
–120
–140
–160
–40 –30 –20 –10
0
∆F = offset + K x (T – 25)2
F
K = –0.034 ppm/°C2 ± 0.004 ppm/°C2
offset = 6 ppm ± 6 ppm
10 20 30 40 50 60 70 80
Temperature °C
AI09159
7/19
7페이지 | |||
구 성 | 총 19 페이지수 | ||
다운로드 | [ M41T56C64.PDF 데이터시트 ] |
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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 |
M41T56C64 | Serial Real Time Clock | STMicroelectronics |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |