UCC5614Z

Mfr. #:: UCC5614Z
メーカー:: Rochester Electronics, LLC
説明:: SCSI Terminator, 9-Line, 110ohm, BICMOS, PZIP16
ライフサイクル:: メーカー新製品
データシート:: UCC5614Z データシート
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ECAD Model:

製品属性
属性値

Tags: UCC5614, UCC561, UCC56, UCC5, UCC

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Step1:
Vacuum Packaging with PL

Step2:
Anti-Static Bag

Step3:
Packaging Boxes

UCC5614Z 説明

***et: SCSI Termination 3.3V/5V 16-Pin ZIP Tube

***as Instruments: The UCC5614 provides 9 lines of active termination for a small computer systems interface (SCSI) parallel bus. The SCSI standard recommends active termination at both ends of the cable segment. The UCC5614 is ideal for high performance 3.3-V SCSI systems. The key features contributing to such low operating voltage are the 0.1-V drop-out regulator and the 2.7-V reference. During disconnect the supply current is typically only 0.5 A, which makes the device attractive for battery powered systems. The UCC5614 is designed with an ultra low channel capacitance of 1.8 pF, which eliminates effects on signal i cted terminators at interim points on the bus. The UCC5614 can be programmed for either a 110- or 2.5-k termination. The 110- termination is used for standard SCSI bus lengths and the 2.5-k termination is typically used in short bus applications. When driving the TTL compatible DISCNCT pin directly, the 110- termination is connected when the DISCNCT pin is driven low, and disconnected when driven high. When the DISCNCT pin is driven through an impedance between 80 k and 150 k, the terminator is in short bus mode. The 2.5-k termination is connected when the DISCNCT pin is driven low and disconnected when driven high. The power amplifier output stage allows the UCC5614 to source full termination current and sink active negation current when all termination lines are actively negated. The UCC5614 is pin for pin compatible with Unitrodes other 9-line SCSI terminators, allowing lower capacitance and lower voltage upgrades to existing systems. The UCC5614, as with all Unitrode terminators, is completely hot pluggable and appears as high impedance at the terminating channels with VTRMPWR = 0 V or open. Internal circuit trimming is utilized, first to trim the 110- termination impedance to a 7% tolerance, and then most importantly, to trim the output current to a 4% tolerance, as close to the max SCSI specification as possible, which maximizes noise margin in fast SCSI operation. Other features include thermal shutdown and current limit. This device is offered in low thermal resistance versions of the industry standard 16-pin narrow body SOIC, 16-pin N and 24-pin TSSOP.

Market price

モデル	メーカー	説明	ストック	価格
UCC5614Z	Texas Instruments	SCSI Terminator, 9-Line, 110ohm, BICMOS, PZIP16 RoHS: Not Compliant	311	1000:$3.1200 500:$3.2800 100:$3.4200 25:$3.5600 1:$3.8400

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