參數(shù)資料
型號(hào)： DS21FT42
廠商： Maxim Integrated Products
文件頁數(shù)： 99/114頁
文件大?。?/td> 0K
描述： IC FRAMER T1 4X3 12CH 300-BGA
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 40
控制器類型： T1 調(diào)幀器
接口： 并行/串行
電源電壓： 2.97 V ~ 3.63 V
電流 - 電源： 225mA
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 300-BBGA
供應(yīng)商設(shè)備封裝： 300-PBGA（27x27）
包裝： 管件
DS21FT42/DS21FF42
85 of 114
All test registers retain their previous state. With JTMS low, a rising edge of JTCLK moves the
controller into the Capture-DR state and will initiate a scan sequence. JTMS HIGH during a rising edge
on JTCLK moves the controller to the Select-IR
Capture-DR
Data may be parallel-loaded into the Test Data registers selected by the current instruction. If the
instruction does not call for a parallel load or the selected register does not allow parallel loads, the Test
register will remain at its current value. On the rising edge of JTCLK, the controller will go to the Shift-
DR state if JTMS is low or it will go to the Exit1-DR state if JTMS is high.
Shift-DR
The Test Data register selected by the current instruction will be connected between JTDI and JTDO and
will shift data one stage towards its serial output on each rising edge of JTCLK. If a Test Register
selected by the current instruction is not placed in the serial path, it will maintain its previous state.
Exit1-DR
While in this state, a rising edge on JTCLK with JTMS high will put the controller in the Update-DR
state, and terminate the scanning process. A rising edge on JTCLK with JTMS low will put the
controller in the Pause-DR state.
Pause-DR
Shifting of the test registers is halted while in this state. All Test registers selected by the current
instruction will retain their previous state. The controller will remain in this state while JTMS is low. A
rising edge on JTCLK with JTMS high will put the controller in the Exit2-DR state.
Exit2-DR
While in this state, a rising edge on JTCLK with JTMS high will put the controller in the Update-DR
state and terminate the scanning process. A rising edge on JTCLK with JTMS low will enter the Shift-
DR state.
Update-DR
A falling edge on JTCLK while in the Update-DR state will latch the data from the shift register path of
the Test registers into the data output latches. This prevents changes at the parallel output due to changes
in the shift register. A rising edge on JTCLK with JTMS low, will put the controller in the Run-Test-Idle
state. With JTMS high, the controller will enter the Select-DR-Scan state.
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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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