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參數(shù)資料
| 型號： | M41T00M6F |
| 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： | REAL TIME CLOCK, PDSO8 |
| 封裝： | 0.150 INCH, LEAD FREE, PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 4/25頁 |
| 文件大小： | 202K |
| 代理商： | M41T00M6F |
Device operation
M41T00
2.9
WRITE mode
In this mode the master transmitter transmits to the M41T00 slave receiver. Bus protocol is
shown in Figure 10. Following the START condition and slave address, a logic '0' (R/W = 0)
is placed on the bus and indicates to the addressed device that word address An will follow
and is to be written to the on-chip address pointer. The data word to be written to the
memory is strobed in next and the internal address pointer is incremented to the next
memory location within the RAM on the reception of an acknowledge clock. The M41T00
slave receiver will send an acknowledge clock to the master transmitter after it has received
the slave address and again after it has received the word address and each data byte (see
Figure 10.
WRITE mode sequences
2.10
Data retention mode
With valid VCC applied, the M41T00 can be accessed as described above with READ or
WRITE cycles. Should the supply voltage decay, the M41T00 will automatically deselect,
Figure 11. Power down/up mode AC waveforms
AI00591
BUS ACTIVITY:
ACK
S
ACK
STOP
START
P
SDA LINE
BUS ACTIVITY:
MASTER
R/W
DATA n
DATA n+1
DATA n+X
WORD
ADDRESS (An)
SLAVE
ADDRESS
AI00596
VCC
tREC
tPD
VSO
SDA
SCL
DON'T CARE
Table 3.
RTC power down/up ac characteristics
Symbol
Parameter(1)(2)
Min
Typ
Max
Unit
tPD
SCL and SDA at VIH before power down
0
ns
trec
SCL and SDA at VIH after power up
10
s
1.
Valid for ambient operating temperature: TA = -40 to 85°C; VCC = 2.0 to 5.5 V (except where otherwise noted).
2.
VCC fall time should not exceed 5 mV/s.
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相關(guān)代理商/技術(shù)參數(shù) |
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| M41T00M6F-CUT TAPE | 制造商:ST 功能描述:M41T00 Series 2 - 5.5 V 32 kHz Serial I2C Real Time Clock - SOIC-8 |
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| M41T00SC64MY6E | 功能描述:電可擦除可編程只讀存儲器 SERIAL REAL TIME CLOCK 64Kb 電可擦除可編程只讀存儲器 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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