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IMP5219 Dataheets PDF



Part Number IMP5219
Manufacturers IMP
Logo IMP
Description SCSII Termiinattor
Datasheet IMP5219 DatasheetIMP5219 Datasheet (PDF)

IMP51 IMP52 1 1/51 1 2 9 DATA COMMUNICATIONS 9-Line SCSI Terminator The 9-channel IMP5219 SCSI terminator is part of IMP's family of highperformance SCSI terminators that deliver true UltraSCSI performance. The BiCMOS design offers superior performance over first generation linear regulator/resistor based terminators. IMP's new architecture employs high-speed adaptive elements for each channel, thereby providing the fastest response possible - typically www.DataSheet4U.com 35MHz, which is 100 t.

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IMP51 IMP52 1 1/51 1 2 9 DATA COMMUNICATIONS 9-Line SCSI Terminator The 9-channel IMP5219 SCSI terminator is part of IMP's family of highperformance SCSI terminators that deliver true UltraSCSI performance. The BiCMOS design offers superior performance over first generation linear regulator/resistor based terminators. IMP's new architecture employs high-speed adaptive elements for each channel, thereby providing the fastest response possible - typically www.DataSheet4U.com 35MHz, which is 100 times faster than the older linear regulator terminator approach. The bandwidth of terminators based on the older regulator/resistor terminator architecture is limited to 500kHz since a large output stabilization capacitor is required. The IMP architecture eliminates the external output compensation capacitor and the need for transient output capacitors while maintaining pin compatibility with first generation designs. Reduced component count is inherent with the IMP5219. The IMP5219 architecture tolerates marginal system designs. A key improvement offered by the IMP5219 lies in its ability to insure reliable, error-free communications even in systems which do not adhere to recommended SCSI hardware design guidelines, such as improper cable lengths and impedance. Frequently, this situation is not controlled by the peripheral or host designer. For portable and configurable peripherals, the IMP5219 can be placed in a sleep mode with an active LOW disable signal. Quiescent current is typically 375µA and output are in a high impedance state when disabled. Key Features Ultra-Fast response for Fast-20 SCSI applications Hot swap compatible 35MHz channel bandwidth 3.5V operation Less than 3pF output capacitance Sleep-mode current less than 375µA Thermally self limiting No external compensation capacitors Implements 8-bit or 16-bit (wide) applications Compatible with active negation drivers (60ma/channel) x Compatible with passive and active terminations x Approved for use with SCSI 1, 2, 3 and UltraSCSI x x x x x x x x x x Block Diagrams Term Power Thermal Limiting Circuit Current Biasing Circuit 24mA Current Limiting Circuit DATA OUTPUT PIN DB (0) 2.85V Disable Pin – 1 of 9 Channels + 1.4V 5219_01.eps Daily Silver IMP Data Communications 1 IMP51 IMP52 1 1/51 1 2 9 Pin Configuration SOWB-16 TERM POWER NC D0 D1 D2 www.DataSheet4U.com D3 D4 GND 1 2 3 4 5 6 7 8 DW Package IMP5219 16 TERM POWER 15 NC 14 DISABLE 13 D8 12 D7 11 D6 10 D5 9 GND 5219_02.eps TSSOP-20 TERM POWER NC NC D0 D1 D2 D3 D4 NC 1 2 3 4 5 6 7 8 9 IMP5219 20 TERM POWER 19 DISABLE 18 NC 17 D8 16 D7 15 NC 14 D6 13 D5 12 NC 11 GND PW Package 5219_02a.eps GND 10 Ordering Information Part Number IMP5219CDW IMP5219CDWT IMP5219CPW IMP5219CPWT Temperature Range 0°C to 125°C 0°C to 125°C 0°C to 125°C 0°C to 125°C Package 16-pin Plastic SOWB Tape and Reel, 16-pin Plastic SOWB 20-pin Plastic TSSOP Tape and Reel, 20-pin Plastic TSSOP 5219_t01.at3 Absolute Maximum Ratings1 Continuous Termination .


IMP5218 IMP5219 ASN37S


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