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參數(shù)資料
| 型號(hào)： | M41T81M6TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | BULGIN COMPONENT |
| 中文描述： | 串行訪問時(shí)鐘用鬧鐘 |
| 文件頁數(shù)： | 12/28頁 |
| 文件大?。?/td> | 386K |
| 代理商： | M41T81M6TR |
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M41T81
12/28
READ Mode
In this mode the master reads the M41T81 slave
after setting the slave address (see Figure 14,
page 12). Following the WRITE Mode Control Bit
(R/W=0) and the Acknowledge Bit, the word ad-
dress 'An' is written to the on-chip address pointer.
Next the START condition and slave address are
repeated followed by the READ Mode Control Bit
(R/W=1). At this point the master transmitter be-
comes the master receiver. The data byte which
was addressed will be transmitted and the master
receiver will send an Acknowledge Bit to the slave
transmitter. The address pointer is only increment-
ed on reception of an Acknowledge Clock. The
M41T81 slave transmitter will now place the data
byte at address An+1 on the bus, the master re-
ceiver reads and acknowledges the new byte and
the address pointer is incremented to “An+2.”
This cycle of reading consecutive addresses will
continue until the master receiver sends a STOP
condition to the slave transmitter.
The system-to-user transfer of clock data will be
halted whenever the address being read is a clock
address (00h to 07h). The update will resume due
to a Stop Condition or when the pointer increments
to any non-clock address (08h-13h).
Note:
This is true both in READ Mode and WRITE
Mode.
An alternate READ Mode may also be implement-
ed whereby the master reads the M41T81 slave
without first writing to the (volatile) address point-
er. The first address that is read is the last one
stored in the pointer (see Figure 15, page 13).
Figure 13. Slave Address Location
Figure 14. READ Mode Sequence
AI00602
R/W
SLAVE ADDRESS
START
A
0
1
0
0
0
1
1
M
L
AI00899
BUS ACTIVITY:
A
S
A
A
A
N
S
S
P
SDA LINE
BUS ACTIVITY:
MASTER
R
DATA n
DATA n+1
DATA n+X
WORD
ADDRESS (An)
SLAVE
ADDRESS
S
S
R
SLAVE
ADDRESS
A
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| M41T81MX | Mains, Connector, Voltage Rating AC 250 Volt, Current Rating 10 Ampere |
| M41T81MY | SERIAL ACCESS RTC WITH ALARMS |
| M41T81MX6TR | SERIAL ACCESS RTC WITH ALARMS |
| M41T81SMY6FT | Serial Access Real-Time Clock with Alarms |
| M41T81SMY6ET | Serial Access Real-Time Clock with Alarms |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M41T81MX | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SERIAL ACCESS RTC WITH ALARMS |
| M41T81MX6 | 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 |
| M41T81MX6TR | 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 |
| M41T81MY | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SERIAL ACCESS RTC WITH ALARMS |
| M41T81MY6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial Access Real-Time Clock with Alarms |
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