UCC5610QP

UCC5610QP

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UCC5610QP
SCSI TERMINATOR, 18-LINE, 110OHM
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$2.86

Quantity Available: 3219
SZC Quality Assurance
Texas Instruments

Texas Instruments

Texas Instruments Incorporated (TI) is a global semiconductor powerhouse, crafts advanced analog ICs and embedded processors. Fueled by top-tier minds, TI's innovations drive tech's future, impacting 100,000+ clients.

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UCC5610QP description

The UCC5610 provides 18 lines of active termination for a SCSI (small computer systems interface) parallelbus. The SCSI standard recommends active termination at both ends of the cable.The UCC5610 is ideal for high performance 3.3-V SCSI systems. The key features contributing to such lowoperating voltage are the 0.1-V drop-out regulator and the 2.75-V reference. During disconnect the supplycurrent is typically only 0.5 µA, which makes the IC attractive for battery powered systems.The UCC5610 is designed with an ultralow-channel capacitance of 1.8 pF, which eliminates effects on signalintegrity from disconnected terminators at interim points on the bus.The UCC5610 can be programmed for either a 110-Ω or 2.5-kΩ termination. The 110-Ω termination is used forstandard SCSI bus lengths and the 2.5-kΩ termination is typically used in short bus applications. When drivingthe TTL compatible DISCNCT pin directly, the 110-Ω termination is connected when the DISCNCT pin is drivenlow, and disconnected when driven high. When the DISCNCT pin is driven through an impedance between80 kΩ and 150 kΩ, the 2.5-kΩ termination is connected when the DISCNCT pin is driven low, and disconnectedwhen driven high.

UCC5610QP description (continued)

The power amplifier output stage allows the UCC5610 to source full termination current and sink active negationcurrent when all termination lines are actively negated.The UCC5610 is pin for pin compatible with Unitrode’s other 18-line SCSI terminators, allowing lowercapacitance and lower voltage upgrades to existing systems. The UCC5610, as with all Unitrode terminators,is completely hot-pluggable and appears as high impedance at the terminating channels with VTRMPWR = 0 Vor open.Internal circuit trimming is utilized, first to trim the 110-Ω termination impedance to a 7% tolerance, and then mostimportantly, to trim the output current to a 4% tolerance, which maximizes noise margin.Other features include thermal shutdown and current limit.This device is offered in low thermal resistance versions of the industry standard 28-pin wide body SOIC and28-pin PLCC.32113 14567891011LINE6LINE5LINE4LINE3LINE2LINE1DISCNCTLINE12LINE13LINE14LINE15LINE16LINE17LINE18415 16 17 18GND*GND*GND*GND*GND*GND*LINE11LINE10REGTRMPWRQP PACKAGETOP VIEW28 27 262524232221201912GND*LINE9LINE8LINE712345678910111213142827262524232221201918171615DISCNCTLINE1LINE2LINE3LINE4LINE5GND*GND*GND*LINE6LINE7LINE8LINE9TRMPWRGNDLINE18LINE17LINE16LINE15LINE14GND*GND*GND*LINE13LINE12LINE11LINE10REGDWP PACKAGETOP VIEW* DWP package pin 28 serves as signal ground;pins 7, 8, 9, 20, 21, 22 serve as heatsink/ground.* QP package pins 12-18 serve as both heatsinkand signal ground.AVAILABLE OPTIONSTJPACKAGED DEVICES�TJSOIC (DWP)PLCC (QP)0°C to 70°CUCC5610DWPUCC5610QP† Available tape and reeled. Add TR suffix to device type to order quantities of 1000 devices per reel.

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$2.86

Quantity Available: 3219
SZC Quality Assurance
Texas Instruments

Texas Instruments

Texas Instruments Incorporated (TI) is a global semiconductor powerhouse, crafts advanced analog ICs and embedded processors. Fueled by top-tier minds, TI's innovations drive tech's future, impacting 100,000+ clients.

View All Product from Texas Instruments
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