Product Summary

The UCC5617DWP is an 18 lines of active terminator for a SCSI (Small Computers Systems Interface) parallel bus. The SCSI standard recommends and Fast-20 (Ultra) requires active termination at both ends of the cable. Pin for pin compatible with the UC5609, the UCC5617DWP is ideal for high performance 5V SCSI systems, Termpwr 4.0V to 5.25V. During disconnect the supply current is only 50mA typical, which makes the IC attractive for lower powered systems. The UCC5617DWP is designed with a low channel capacitance of 2pF, which eliminates effects on signal integrity from disconnected terminators at interim
points on the bus.

Parametrics

UCC5617DWP absolute maximum ratings: (1)Tempwr: +7V; (2)Signal Line Voltage: 0V to +7V; (3)Regulator Output Current: 1A; (4)Storage Temperature: -65℃ to +150℃; (5)Operating Junction Temperature: -55℃ to +150℃; (6)Lead Temperature (Soldering, 10 Seconds): 300℃.

Features

UCC5617DWP features: (1)Complies with SCSI, SCSI-2, SCSI-3 and FAST-20 Standards; (2)2pF Channel Capacitance During Disconnect; (3)50mA Supply Current in Disconnect Mode; (4)110W Termination; (5)SCSI Hot Plugging Compliant, 10nA Typical; (6)+400mA Sinking Current for Active Negation; (7)-650mA Sourcing Current for Termination; (8)Trimmed Impedance to 5%.

Diagrams

UCC5617DWP block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
UCC5617DWP
UCC5617DWP
Texas Instruments
SCSI Interface IC Lowest Capacitance 18-Line 5V SE
Data Sheet
0-1: $3.32
1-25: $2.80
25-100: $2.57
100-250: $2.35
UCC5617DWPG4
UCC5617DWPG4
Texas Instruments
SCSI Interface IC Lowest Capacitance 18-Line 5V SE
Data Sheet
0-1: $3.28
1-25: $2.80
25-100: $2.57
100-250: $2.35
UCC5617DWPTR
UCC5617DWPTR
Texas Instruments
SCSI Interface IC Lowest Capacitance 18-Line 5V SE
Data Sheet
0-645: $2.04
645-1000: $1.75
1000-2000: $1.71
UCC5617DWPTRG4
UCC5617DWPTRG4
Texas Instruments
SCSI Interface IC Lowest Capacitance 18-Line 5V SE
Data Sheet
0-645: $2.04
645-1000: $1.75
1000-2000: $1.71