參數(shù)資料
型號(hào)： 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)： 26/145頁
文件大小： 466K
代理商： DS21FT42
DALLAS SEMICONDUCTOR
DS21FF42/DS21FT42
101899
/1236
Signal Name:
Signal Description:
Signal Type:
In non–multiplexed bus operation (MUX = 0), serves as the address bus. In multiplexed bus
operation (MUX = 1), these pins are not used and should be tied low.
A0 to A5, A7
Address Bus
Input
Signal Name:
Signal Description:
Signal Type:
In non–multiplexed bus operation (MUX = 0), serves as address bit 6. In multiplexed bus
operation (MUX = 1), serves to demultiplex the bus on a positive–going edge.
ALE(AS)/A6
A6 or Address Latch Enable (Address Strobe)
Input
Signal Name:
Signal Description:
Signal Type:
Strap high to select Motorola bus timing; strap low to select Intel bus timing. This pin
controls the function of the RD*(DS*), ALE(AS), and WR*(R/W*) pins. If BTS = 1, then
these pins assume the function listed in parenthesis ().
BTS
Bus Type Select
Input
Signal Name:
Signal Description:
Signal Type:
RD* and DS* are active low signals. Note: DS is active high when MUX=1. Refer to bus
timing diagrams in section 25.
RD*(DS*)
Read Input (Data Strobe)
Input
Signal Name:
Signal Description:
Signal Type:
Selects which of the four framers to be accessed.
FS0 AND FS1
Framer Selects
Input
Signal Name:
Signal Description:
Signal Type:
Must be low to read or write to the device. CS* is an active low signal.
CS*
Chip Select
Input
Signal Name:
Signal Description:
Signal Type:
WR* is an active low signal.
WR*( R/W*)
Write Input(Read/Write)
Input
TEST ACCESS PORT PINS
Signal Name:
TEST
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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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