參數(shù)資料
型號(hào)： M41T315Y-65MQ6E
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： REAL TIME CLOCK, PDSO16
封裝： 0.150 INCH, LEAD FREE, PLASTIC, SOIC-16
文件頁數(shù)： 8/30頁
文件大?。?/td> 324K
代理商： M41T315Y-65MQ6E
Obsolete
Product(s)
- Obsolete
Product(s)
Obsolete
Product(s)
- Obsolete
Product(s)
Clock operation
M41T315Y, M41T315V, M41T315W
3
Clock operation
3.1
Clock register information
Clock information is contained in eight registers of 8 bits, each of which is sequentially
accessed 1 bit at a time after the 64-bit pattern recognition sequence has been completed.
When updating the clock registers, each must be handled in groups of 8 bits. Writing and
reading individual bits within a register could produce erroneous results. These
READ/WRITE registers are defined in Table 5 on page 17.
Data contained in the clock registers is in binary coded decimal format (BCD). Reading and
writing the registers is always accomplished by stepping though all eight registers, starting
with Bit 0 of Register 0 and ending with Bit 7 of Register 7.
3.2
AM-PM/12/24 mode
Bit 7 of the hours register is defined as the 12-hour or 24-hour mode select bit. When high,
the 12-hour mode is selected. In the 12-hour mode, Bit 5 is the AM/PM bit with logic high
being PM. In the 24-hour mode, Bit 5 is the second 10-hour bit (20-23 hours).
3.3
Oscillator and reset bits
Bits 4 and 5 of the day register are used to control the reset and oscillator functions. Bit 4
controls the reset pin input. When the Reset Bit is set to logic '1,' the reset input pin is
ignored. When the Reset Bit is set to logic '0,' a low input on the reset pin will cause the
device to abort data transfer without changing data in the timekeeping registers. Reset
operates independently of all other inputs. Bit 5 controls the oscillator. When set to logic '0,'
the oscillator turns on and the real-time clock/calendar begins to increment.
3.4
Zero bits
Registers 1, 2, 3, 4, 5, and 6 contain one (1) or more bits that will always read logic '0.' When
writing to these locations, either a logic '1' or '0' is acceptable.
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PDF描述
M41T315Y-65MQ6F REAL TIME CLOCK, PDSO16
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M41T315Y-65MQ6F 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial Access Phantom RTC Supervisor
M41T315Y-65MQ6TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial Access Phantom RTC Supervisor
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M41T315Y-85MH6F 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial access phantom RTC supervisor
M41T315Y-85MH6TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial Access Phantom RTC Supervisor
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