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參數(shù)資料
| 型號： | M41T82RMY6E |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO18 |
| 封裝： | 0.300 INCH, ROHS COMPLIANT, PLASTIC, SOP-18 |
| 文件頁數(shù)： | 30/58頁 |
| 文件大?。?/td> | 462K |
| 代理商： | M41T82RMY6E |
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Clock operation
M41T82 M41T83
3.6
Optional second programmable alarm
When the Alarm 2 Enable (AL2E) bit (D1 of address 13h) is set to a logic ‘1’, registers 14h
through 18h provide control for a second programmable alarm which operates in the same
manner as the alarm function described above. The A2IE (Alarm 2 Interrupt Enable) bit
allows the second alarm to trigger a separate interrupt output (IRQ2).
The AL2E bit defaults on initial power-up to a logic ‘0’ (Alarm 2 disabled). In this mode, the
five address bytes (14h-18h) function as additional user SRAM, for a total of 12 bytes of
user SRAM.
The IRQ1/FT/OUT pin can also be activated in the battery back-up mode (see Figure 22 on
Figure 21.
Alarm interrupt reset waveform
Figure 22.
Back-up mode alarm waveform
1.
ABE and A1IE bits = 1.
ALARM FLAG BITS (AFx)
0Fh
0Eh
00h
HIGH-Z
AI08898
IRQ1/FT/OUT or
IRQ2
V
IRQ1/FT/OUT or
IRQ2
AF Bit in Flags
Register
HIGH-Z
VSO
VPFD
trec
AI09164c
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| 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 |
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相關(guān)代理商/技術(shù)參數(shù) |
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| M41T82RMY6F | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial RTC with battery switchover |
| M41T82RQ6E | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial RTC with battery switchover |
| M41T82RQ6F | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial RTC with battery switchover |
| M41T82RQA6E | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial I2C bus RTC with battery switchover |
| M41T82RQA6F | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial I2C bus RTC with battery switchover |
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