參數(shù)資料
型號： M24256-BFMB6TG/K
廠商： STMICROELECTRONICS
元件分類： PROM
英文描述： 32K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8
封裝： 2 X 3 MM, ROHS COMPLIANT, UFDFPN-8
文件頁數(shù)： 5/42頁
文件大?。?/td> 501K
代理商： M24256-BFMB6TG/K
M24256-BF, M24256-BR, M24256-BW, M24256-DR
Device operation
Doc ID 6757 Rev 21
3
Device operation
The device supports the I2C protocol. This is summarized in Figure 7. Any device that sends
data on to the bus is defined to be a transmitter, and any device that reads the data to be a
receiver. The device that controls the data transfer is known as the bus master, and the
other as the slave device. A data transfer can only be initiated by the bus master, which will
also provide the serial clock for synchronization. The device is always slave in all
communications.
3.1
Start condition
Start is identified by a falling edge of Serial Data (SDA) while Serial Clock (SCL) is stable in
the High state. A Start condition must precede any data transfer instruction. The device
continuously monitors (except during a Write cycle) Serial Data (SDA) and Serial Clock
(SCL) for a Start condition, and will not respond unless one is given.
3.2
Stop condition
Stop is identified by a rising edge of Serial Data (SDA) while Serial Clock (SCL) is stable
and driven High. A Stop condition terminates communication between the device and the
bus master. A Read instruction that is followed by NoAck can be followed by a Stop
condition to force the device into the Standby mode. A Stop condition at the end of a Write
instruction triggers the internal Write cycle.
3.3
Acknowledge bit (ACK)
The acknowledge bit is used to indicate a successful byte transfer. The bus transmitter,
whether it be bus master or slave device, releases Serial Data (SDA) after sending eight bits
of data. During the 9th clock pulse period, the receiver pulls Serial Data (SDA) Low to
acknowledge the receipt of the eight data bits.
3.4
Data input
During data input, the device samples Serial Data (SDA) on the rising edge of Serial Clock
(SCL). For correct device operation, Serial Data (SDA) must be stable during the rising edge
of Serial Clock (SCL), and the Serial Data (SDA) signal must change only when Serial Clock
(SCL) is driven Low.
相關(guān)PDF資料
PDF描述
M24308/4-260 15 CONTACT(S), MALE, D SUBMINIATURE CONNECTOR
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M24256-BFMC6TG 功能描述:電可擦除可編程只讀存儲器 256kB Serial I2C 3-Chip Enable 1 MHz 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8
M24256-BHR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 Kbit and 256 Kbit serial IC bus EEPROM with three Chip Enable lines
M24256-BHRDW6TP 功能描述:電可擦除可編程只讀存儲器 512 Kbit/256 Kbit serial 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8
M24256-BHRMN6P 功能描述:電可擦除可編程只讀存儲器 512Kbit and 256Kbit bus 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8
M24256-BHRMN6TP 功能描述:電可擦除可編程只讀存儲器 513 Kbit/256 Kbit serial 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8
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