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參數(shù)資料
| 型號： | M41T82SQA6F |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 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, QCC16 |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, QFN-16 |
| 文件頁數(shù)： | 38/58頁 |
| 文件大?。?/td> | 462K |
| 代理商： | M41T82SQA6F |
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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 |
|---|---|
| M41T83RM6F | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| M41T83ZM6E | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| M41T83ZQA6E | 1 TIMER(S), REAL TIME CLOCK, QCC16 |
| M41T83RMY6E | 1 TIMER(S), REAL TIME CLOCK, PDSO18 |
| M41T83ZQA6F | 1 TIMER(S), REAL TIME CLOCK, QCC16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M41T82ZM6E | 功能描述:實(shí)時(shí)時(shí)鐘 Serial I2C bus RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41T82ZM6F | 功能描述:實(shí)時(shí)時(shí)鐘 Serial I2C bus RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41T82ZMY6E | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial RTC with battery switchover |
| M41T82ZMY6F | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial RTC with battery switchover |
| M41T82ZQ6E | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial RTC with battery switchover |
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