參數(shù)資料
型號(hào)： M41T11M6E
廠商： 意法半導(dǎo)體
英文描述： Serial Real Time Clock with 56 Bytes of NVRAM
中文描述： 串行實(shí)時(shí)時(shí)鐘與56字節(jié)的NVRAM
文件頁(yè)數(shù)： 14/29頁(yè)
文件大?。?/td> 154K
代理商： M41T11M6E
Clock operation
M41T11
14/29
3
Clock operation
The eight byte clock register (see
Table 3
) is used to both set the clock and to read the date
and time from the clock, in a binary coded decimal format. Seconds, Minutes, and Hours are
contained within the first three registers. Bits D6 and D7 of clock register 2 (Hours Register)
contain the CENTURY ENABLE Bit (CEB) and the CENTURY Bit (CB). Setting CEB to a '1'
will cause CB to toggle, either from '0' to '1' or from '1' to '0' at the turn of the century
(depending upon its initial state). If CEB is set to a '0', CB will not toggle. Bits D0 through D2
of register 3 contain the Day (day of week). Registers 4, 5 and 6 contain the Date (day of
month), Month and Years. The final register is the Control Register (this is described in the
Clock Calibration section). Bit D7 of register 0 contains the STOP Bit (ST). Setting this bit to
a '1' will cause the oscillator to stop. If the device is expected to spend a significant amount
of time on the shelf, the oscillator may be stopped to reduce current drain. When reset to a
'0' the oscillator restarts within one second.
Note:
I
n order to guarantee oscillator start-up after the initial power-up, set the ST Bit to a '1,' then
reset this bit to a '0.' This sequence enables a “kick start” circuit which aids the oscillator
start-up during worst case conditions of voltage and temperature.
The seven Clock Registers may be read one byte at a time, or in a sequential block. The
Control Register (Address location 7) may be accessed independently. Provision has been
made to assure that a clock update does not occur while any of the seven clock addresses
are being read. If a clock address is being read, an update of the clock registers will be
delayed by 250ms to allow the read to be completed before the update occurs. This will
prevent a transition of data during the read.
Note:
This 250ms delay affects only the clock register update and does not alter the actual clock
time.
相關(guān)PDF資料
PDF描述
M41T11M6F Serial Real Time Clock with 56 Bytes of NVRAM
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M41T11M6F 功能描述:實(shí)時(shí)時(shí)鐘 Serial 512 (64x8) 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(chǔ)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
M41T11M6TR 制造商:STMicroelectronics 功能描述:
M41T11MH 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 bit 64b x8 Serial Access TIMEKEEPER SRAM
M41T11MH6 功能描述:實(shí)時(shí)時(shí)鐘 Serial 512 (64x8) 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(chǔ)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
M41T11MH6E 功能描述:實(shí)時(shí)時(shí)鐘 Serial 512 (64x8) 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(chǔ)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
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