參數(shù)資料
型號: M41T00M6E
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?。?/td> 202K
代理商: M41T00M6E
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,
WRITE protecting itself when VCC falls (see Figure 11).
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.
相關(guān)PDF資料
PDF描述
M41T00M6 0 TIMER(S), REAL TIME CLOCK, PDSO8
M41T0DS6 REAL TIME CLOCK, PDSO8
M41T0DS6T REAL TIME CLOCK, PDSO8
M41T0M6T 0 TIMER(S), REAL TIME CLOCK, PDSO8
M41T0M6TR 0 TIMER(S), REAL TIME CLOCK, PDSO8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M41T00M6F 功能描述:實時時鐘 Serial 64 (8X8) 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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
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
M41T00S 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial access real-time clock
M41T00S_08 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial access real-time clock
M41T00SC64 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Real-Time Clock + 64Kbit (8192 x 8) EEPROM