參數(shù)資料
型號： DS21FT42
元件分類： 通信及網(wǎng)絡(luò)
英文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述： Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù)： 24/145頁
文件大?。?/td> 466K
代理商： DS21FT42
DALLAS SEMICONDUCTOR
DS21FF42/DS21FT42
101899
/1234
Signal Description:
Signal Type:
1.544 MHz or 2.048 MHz clock. Only used when the elastic store function is enabled.
Should be tied low in applications that do not use the elastic store. Can be burst at rates up
to 8.192 MHz.
This pin is tied to the TSYSCLK signal in the DS21FF42/DS21FT42.
Receive System Clock
Input
Signal Name:
Signal Description:
Signal Type:
Outputs signaling bits in a PCM format. Updated on rising edges of RCLK when the
receive side elastic store is disabled. Updated on the rising edges of RSYSCLK when the
receive side elastic store is enabled. This function is available when FMS = 0.
FMS is tied
to ground for the DS21FF42/DS21FT42.
RSIG
Receive Signaling Output
Output
Signal Name:
Signal Description:
Signal Type:
A dual function output that is controlled by the CCR3.5 control bit. This pin can be
programmed to either toggle high when the synchronizer is searching for the frame and
multiframe or to toggle high if the TCLK pin has not been toggled for 5 usec. This function
is available when FMS = 1 (DS21Q41 emulation).
This signal is not bonded out in the
DS21FF42/DS21FT42.
RLOS/LOTC
Receive Loss of Sync / Loss of Transmit Clock
Output
Signal Name:
Signal Description:
Signal Type:
A 1.544 MHz reference clock used in the generation of 8MCLK. This function is available
when FMS = 0.
FMS is tied to ground for the DS21FF42/DS21FT42.
CLKSI
8 MHz Clock Reference
Input
Signal Name:
Signal Description:
Signal Type:
A 8.192 MHz output clock that is referenced to the clock that is input at the CLKSI pin.
This function is available when FMS = 0.
FMS is tied to ground for the
DS21FF42/DS21FT42.
8MCLK
8 MHz Clock
Output
Signal Name:
Signal Description:
Signal Type:
RPOS
Receive Positive Data Input
Input
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21FT42N 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4x4 16/4x3 12 Chnl T1/T1 Framer RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21FT44 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21FT44+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4X3 E1 Framer E1 Framer E1 Framer RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21FT44N 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4x4 16/4x3 12 Chnl E1/E1 Framer RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21FT44N+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4x4 16/4x3 12 Chnl E1/E1 Framer RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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