UCC5638FQPTR ,15 Line 2.7-5V Multimode Terminator for SCSI through Ultra320 SCSIUCC5638Multimode SCSI 15 Line TerminatorDESCRIPTION
UCC5639FQPTR ,15 Line 2.7-5V Multimode Terminator for SCSI through Ultra320 SCSI with Reverse Disconnect
UCC5640PW , LOW VOLTAGE DIFFERENTIAL (LVD) SCSI 9-LINE TERMINATOR
UCC5640PW , LOW VOLTAGE DIFFERENTIAL (LVD) SCSI 9-LINE TERMINATOR
UCC5640PW , LOW VOLTAGE DIFFERENTIAL (LVD) SCSI 9-LINE TERMINATOR
UCC5640PW24TR ,9 Line 2.7-5V LVD Terminator for Ultra2 through Ultra320 SCSI SLUS314C − JANUARY 2000 − REVISED JUNE 2003APPLICATION INFORMATIONAll SCSI buses require a ..
UPB8286C ,8 BIT BUS TRANSCEIVERSPin Configurations
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Pin Functions
E (Output Enable)
This active low input ..
UPB8287 ,8 BIT BUS TRANSCEIVERSNEC
. uP38286 gr ST
NEC Electronics Inc. 8-BIT BUS TRANSCEIVERS
Description Pin Identlflcatlon ..
UPB8287C ,8 BIT BUS TRANSCEIVERSPin Configurations
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Pin Functions
E (Output Enable)
This active low input ..
UPC1023H ,30-40V; 3.5-6mA; direct coupled 2-stage amplifier with common emitter output stageElectrical Characteristics Outline
I - (V) I 2.222222 1
I I ITa=25° c Vcc 7v " lkHz FIL= 22km I
..
UPC1042C ,30V; 100mA; 800mW; switching regulator conrtol circuitPin Configuration
+ lnpul A I 1
- InpulA I 2
Compensation 2
Compensation 3 I 4
" I Compens ..
UPC1043C ,Motor Control Circuit Silicon Monolithic Bipolar Integrated CircuitFEATURES
. Operating at wide range supply voltage.
(Vcc =9 to 28 V)
0 Available for wide range ..
UCC5638-UCC5638FQP-UCC5638FQPTR
15-Line 3-5V Multimode Terminator for SCSI Through Ultra3 SCSI
UCC5638
DESCRIPTIONThe UCC5638 Multimode SCSI Terminator providesa smooth transition
into the LVD SCSI Parallel Interface (SPI-2, SPI-3, SPI-4).It automatically
senses the bus, via DIFFB, and switches the terminationto either single
ended (SE)or low voltage differential (LVD) SCSI, dependent on which
typeof devices are connectedto the bus. The UCC5638 can not be useda HVD, EIA485, differential SCSI bus.If the UCC5638 detectsa HVD
SCSI device, it switches to a high impedance state.
The Multimode terminator containsall functions requiredto terminate and
auto detect and switch modesfor SPI-2, SPI-3 and SPI-4 bus architectures.
Single Ended and Differential impedances and currents are trimmed for
maximum effectiveness. Fail Safe biasingis providedto insure signal integ-
rity. Device/Bus type detection circuitryis integrated into the terminatorto
provide automatic switchingof termination between single ended and LVD
SCSI anda high impedance for HVD SCSI. The multimode function pro-
videsall the performance analog functions necessaryto implement SPI-2
termination in a single monolithic device.
The UCC5638is offeredina48 pin LQFP package fora temperature range
of 0°C to 70°C.
Multimode SCSI 15 Line Terminator
FEATURES Auto Selection Single Ended (SE) or
Low Voltage Differential (LVD)
Termination Meets SCSI-1, SCSI-2, Ultra2 (SPI-2
LVD SCSI), Ultra3, Ultra160 (SPI-3)
and Ultra320 (SPI-4) Standards 2.7V to 5.25V Operation Differential Failsafe Bias Thermal packaging for low junction
temperature and better MTBF.
BLOCK DIAGRAM
