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參數(shù)資料
| 型號： | M41T93SQA6F |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復及定時提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PQCC16 |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, QFN-16 |
| 文件頁數(shù)： | 28/49頁 |
| 文件大?。?/td> | 719K |
| 代理商： | M41T93SQA6F |
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Clock operation
M41T93
Doc ID 12615 Rev 5
3.15
Initial power-on defaults
Upon initial application of power to the device, the register bits will initially power-on in the
Table 13.
Initial power-on default values (part 1)
Table 14.
Initial power-up default values (part 2)
3.16
OTP bit operation (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 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.
Condition(1)
1.
All other control bits power-up in an undetermined state
ST
CB1 CB0 OUT FT
DCS
ACS
Digital
calib.
Analog
calib.
OFIE Watchdog(2)
2.
BMB0-BMB4, RB0, RB1
A1IE
SQWE ABE
Initial
power-up
00
0
1
0
1
0
Subsequent
power-up(3)(4)
3.
With battery backup
4.
UC = Unchanged
UC
0
UC
0
UC
Condition(1)
1.
All other control bits power-up in an undetermined state
RPT11-15
HT
OF
TE
TI/TP
TIE
TD1
TD0 RS0 RS1-3 OTP RPT21-25
AL2E
Initial
power-up
01
1
0
1
0
Subsequent
power-up (2)(3)
2.
With battery backup
3.
UC = Unchanged
UC
1
UC
0
UC
相關PDF資料 |
PDF描述 |
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| M43C505-XXX-DIT | 4-BIT, MROM, 2 MHz, MICROCONTROLLER, UUC |
| M43C505-XXX-Q44 | 4-BIT, MROM, 2 MHz, MICROCONTROLLER, PQCC44 |
| M44C090-XXX-FL16 | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDSO16 |
| M44C090-XXX-DIT | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, UUC |
| M48ST59W-70MH1TR | 0 TIMER(S), REAL TIME CLOCK, PDSO44 |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M41T93ZMY6E | 功能描述:實時時鐘 Serial SPI 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41T93ZMY6F | 功能描述:實時時鐘 Serial SPI 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41T93ZQA6E | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial SPI bus RTC with battery switchover |
| M41T93ZQA6F | 功能描述:實時時鐘 Serial SPI 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41T94 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 Bit 64 bit x8 SERIAL RTC SPI SRAM |
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