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PDF BH9595 Data sheet ( Hoja de datos )

Número de pieza BH9595
Descripción SCSI active terminator
Fabricantes ROHM Semiconductor 
Logotipo ROHM Semiconductor Logotipo



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No Preview Available ! BH9595 Hoja de datos, Descripción, Manual

Mulimedia ICs
SCSI active terminator
BH9595FP-Y / BH9596FP-Y
These SCSI active terminators, developed as a substitute for conventional discrete terminators, maintain good con-
sistency between VM level (2.85V) and GND level (0V) and between VM level and VDD level, and have extremely
low power consumption, dropping to a maximum of 90 milliwatts at standby (compared to the maximum of 990 milli-
watts used by conventional resistance terminators). These SCSI active terminators electrically control SCSI lines,
connecting and disengaging the terminating resistor by electrically controlling the enable pin. (The enable pin is
enabled at the HIGH level and switched to the High-Z state by the LOW level in the BH9595 and by the HIGH level in
the BH9596, completely disconnecting the SCSI line from the SCSI terminator.)
These SCSI active terminators allow for the configuration of flexible, energy-saving SCSI networks, and are ideal for
notebook computers, hard disk drives and a wide range of other products with SCSI capabilities.
Applications
Compact disk drives, optical disk drives, CD-ROM dri-
ves, tape drives, personal computers (including laptop
computers and notebook computers), workstations,
mainframes, laser printers, plotters
Features
1) Internal 2.85V power supply and push-pull opera-
tion, for good consistency at all signal levels.
2) Enable pin for terminator enabling and disconnect-
ing, facilitating SCSI network construction.
3) Low power consumption, ideal for energy-saving
systems.
Power consumption during standby : 90mW (com-
pared to 990mW for conventional resistor termina-
tors)Power consumption at 25% duty : 614mW
(compared to 1,360mW for convention resistor ter-
minators)Significant reductions in power consump-
tion are possible.
4) Wide operating range.
TERM power : 4.0 ~ 5.5V (Transient : 6.0V)
5) Thin, microminiature design, ideal for space-saving
applications.
Package body size : 13.6 × 5.4 × 1.9mm
6) Active termination of 18-line SCSI.
7) Internal thermal shutdown circuit.
8) Compatibility with SCSI-I and SCSI-II.
1

1 page




BH9595 pdf
Mulimedia ICs
BH9595FP-Y / BH9596FP-Y
Application example
System
Power
TERMPWR Line
2.2µ
+
VDD1
SCSI Line
SCSI Line
#1 #1
SCSI DATA LINES
SCSI
Active
Terminator
SCSI
Active
Terminator
VDD1
System
Power
+
2.2µ
EN
GND
#18
VM
#18
VM
EN
GND
Fig. 2
5

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Hoja de datos destacado

Número de piezaDescripciónFabricantes
BH9595SCSI active terminatorROHM Semiconductor
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BH9595FP-YSCSI active terminatorROHM Semiconductor
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BH9596SCSI active terminatorROHM Semiconductor
ROHM Semiconductor
BH9596FP-YSCSI active terminatorROHM Semiconductor
ROHM Semiconductor

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