參數(shù)資料
型號(hào)： M41T82RMY6E
廠商： STMICROELECTRONICS
元件分類(lèi)： 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述： 1 TIMER(S), REAL TIME CLOCK, PDSO18
封裝： 0.300 INCH, ROHS COMPLIANT, PLASTIC, SOP-18
文件頁(yè)數(shù)： 38/58頁(yè)
文件大?。?/td> 462K
代理商： M41T82RMY6E
M41T82 M41T83
Clock operation
3.16
OTP bit operation (M41T83 in SOX18 package only)
When the OTP (One Time Programmable) bit is set to a '1,' the value in the internal OTP
registers will be transferred to the analog calibration register (12h) and are “Read only.” The
OTP value is programmed by the manufacturer, and will contain the calibration value
necessary to achieve ±5 ppm at room temperature after two SMT reflows. This clock
accuracy can then be guaranteed to drift no more than ±3 ppm the first year, and ±1 ppm for
each following year due to crystal aging.
If the OTP bit is set to '0,' the analog calibration register will become a WRITE/READ
register and function like standard SRAM memory cells, allowing the user to implement any
desired value of analog calibration.
When the user sets the OTP bit, they need to wait for approximately 8 ms before the analog
registers transfer the value from the OTP to the analog registers due to the OTP Read
operation.
Table 16.
Initial power-up default values (part 2)
Condition(1)
1.
All other control bits power-up in an undetermined state.
RPT11-15
HT
OF
TE
TI/TP
(2)
2.
M41T83 only.
TIE
TD1 TD0 RS0 RS1-3
OTP
A2IE
RPT21-
25
AL2E
Initial
Power-up
01
1
0
1
0
Subsequent
Power-up(3) (4)
3.
With battery back-up.
4.
UC = unchanged.
UC
1
UC
0
UC
相關(guān)PDF資料
PDF描述
M41T82ZQA6E 1 TIMER(S), REAL TIME CLOCK, QCC16
M41T82RQA6F 1 TIMER(S), REAL TIME CLOCK, QCC16
M41T82RMY6F 1 TIMER(S), REAL TIME CLOCK, PDSO18
M41T82SQA6F 1 TIMER(S), REAL TIME CLOCK, QCC16
M41T83RM6F 1 TIMER(S), REAL TIME CLOCK, PDSO8
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M41T82RMY6F 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Serial RTC with battery switchover
M41T82RQ6E 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Serial RTC with battery switchover
M41T82RQ6F 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Serial RTC with battery switchover
M41T82RQA6E 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Serial I2C bus RTC with battery switchover
M41T82RQA6F 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:Serial I2C bus RTC with battery switchover
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