ds21t07 Maxim Integrated Products, Inc., ds21t07 Datasheet
ds21t07
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ds21t07 Summary of contents
Page 1
... TERMPWR decoupling, and very low quiescent current consumption. The DS21T07 integrates a regulator and nine precise switched 110 ohms termination resistors into a monolithic IC. The DS21T07 can be electrically isolated from the SCSI bus without physical removal from the SCSI device. SCSI Terminator ...
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... SCSI bus configuration 8-bit wide SCSI bus arrangement, two DS21T07’s would be needed at each end of the SCSI cable in order to terminate the 18 active signal lines 16-bit wide SCSI bus arrangement, three DS21T07’s would be needed at each end of the SCSI cable in order to terminate the 27 active signal lines. ...
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... C1 = 4.7 F tantalum C2 = 2.2 F tantalum or 4.7 F aluminum 2. If the DS21T07 embedded into a peripheral that will act as a target on a SCSI bus that recommended TERMPWR be derived from the SCSI cable, not generated locally. In this configuration power failure occurs in the peripheral, it will not affect the bus. ...
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... VREF2 Reference Voltage 2. Must be externally connected directly to the VREF1 pin. Must be decoupled with a 4.7 µF capacitor as shown in Figure 2. Power Down. When tied low, the DS21T07 enters a PD power-down mode. Contains an internal 50K pullup. Strap low to deactivate the DS21T07, leave open circuited to activate the DS21T07. ...
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... Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. The Dallas Semiconductor DS21T07 is built to the highest quality standards and manufactured for long- term reliability. All Dallas Semiconductor devices are made using the same quality materials and manufacturing methods ...
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... All signal lines = 0.0V. 4. All signal lines open 0.0V Guaranteed by design; not production tested through R only through R and . 0.2V. SIGNAL DS21T07S SCSI TERMINATOR 16-PIN SOIC (300-mil) PKG 16-PIN DIM MIN MAX A IN. 0.402 0.412 MM 10.21 10.46 0.290 0.300 B IN. MM 7.37 7.65 C IN. 0.089 0.095 2 ...
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... DS21T07E SCSI TERMINATOR 20-PIN TSSOP DIM MIN MAX 1.10 0. 0.75 1. 0.09 0.18 0.50 0. 0.65 BSC 0.18 0.30 6.40 6. 4.40 NOM G MM 0.25 REF 6.25 6. 0° 8° phi DS21T07 ...