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參數(shù)資料
| 型號： | DS21T05Z/T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TERMINATOR SCSI 150MIL 16SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 類型： | SCSI，LVD，SE |
| 端子數(shù)： | 9 |
| 電源電壓： | 4 V ~ 5.5 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC |
| 包裝： | 帶卷 (TR) |
DS21T05
2 of 7
the buffer can sink 200 mA, and VREF will move less than 60 mV. When all lines settle in the quiescent
state, the regulator will consume about 5 mA. When the DS21T05 is put into power-down mode by
bringing PD low, the power-down circuitry will turn off the transistors on each signal line. This will
isolate the DS21T05 from the signal lines and effectively remove it from the circuit. The power-down pin
( PD ) has an internal 50 k
=pullup resistor. To place the DS21T05 into an active state, the PD pin should
be left open circuited. When installed on disk drives or RAID system components, the DS21T05 will not
affect the SCSI bus during a hot plug operation.
To ensure proper operation, both the TERMPWR1 and TERMPWR2 pins must be connected to the SCSI
bus TERMPWR line and both the VREF1 and VREF2 pins must be tied together externally. Each
DS21T05 requires a 4.7
F capacitor connected between the VREF pins and ground. Figure 2 details a
typical SCSI bus configuration. In an 8-bit wide SCSI bus arrangement, two DS21T05s would be needed
at each end of the SCSI cable in order to terminate the 18 active signal lines. In a 16-bit wide SCSI bus
arrangement, three DS21T05’s would be needed at each end of the SCSI cable in order to terminate the
27 active signal lines.
DS21T05 BLOCK DIAGRAM Figure 1
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| DS21T06 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:SCSI Terminator |
| DS21T06S | 制造商:Maxim Integrated Products 功能描述:**OBS** SCSI TERM. 5% 28P SOIC - Rail/Tube |
| DS21T07 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:SCSI Terminator |
| DS21T07E | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
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