Obsolete Device
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SLUS349B − DECEMBER 1994 − REVISED APRIL 2005
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
Taking this pin high causes the 9 channels to become high impedance and the chip to go into low
power mode. In short laptop buses an 80-kΩ to 150-kΩ resister to ground terminates the bus at 2.5
kΩ. Less than 110 Ω to ground enables the terminator.
DISCNCT
7
I
GND
9
4
Ground reference for the device
LINE1 TO
LINE9
I
110-Ω termination channels
REG
9
4
o
I
Output of the internal 2.7-V regulator
Power for the device
TRMPWR
APPLICATION INFORMATION
Figure 1. Typical SCSI Bus Configuration Utilizing two UCC5614 Devices
Figure 2. Typical Wide SCSI Bus Configuration Utilizing three UCC5614 Devices
5
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