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PDF HP7501 Data sheet ( Hoja de datos )
| Número de pieza | HP7501 | |
| Descripción | Ultra320 LVD/SE SCSI Terminator | |
| Fabricantes | HiMARK | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HP7501 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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HP7501
Ultra320 LVD/SE SCSI Terminator
FEATURES
Fully compliant with Ultra320 (SPI-4),
Ultra3/Ultra160 (SPI-3), Ultra2/Fast-40 (SPI-2)
and Ultra/Fast-20 Standards.
Auto Selection Multi-Mode SE or LVD
Termination for 9 signal line pairs.
Built-in SPI-4 Mode Change Filter
2.7V to 5.25V Operation
Built in Current Limit and Thermal shutdown
Protection Circuitry.
Support Master/Slave input.
SCSI bus hot plug compatible.
Support active negation drive.
28 and 36 pin package.
DESCRIPTION
The HP7501 is a multi-mode SCSI terminator that
conforms to the SCSI (SPI-4) specification which is
designed for the low voltage differential (LVD)
termination. The HP7501 provides backward
compatibility to the SCSI-2, SCSI-1 and a
Single-Ended specifications.
Multi-mode function set up the use of legacy devices
on the bus without changing any hardware setting.
Automatic selection is made by voltage detection on
the DIFFSEN line. If the device is connected in an
LVD only bus, the HP7501 will use LVD termination. If
the device is connected in a Single Ended mode, the
HP7501 will connect in a SE termination.
HiMARK’s SCSI termination architecture uses high
speed elements for the design, therefore providing the
fast response time.
PACKAGE PINOUT
VREF
www.DataSheet4U.comNC
NC
R1P
R1N
R2P
R2N
HGND
HGND
HGND
R3P
R3N
R4P
R4N
R5P
R5N
ISO
GND
1 36
2 35
3 34
4 33
5 32
6 31
7 30
8 29
9 28
10 27
11 26
12 25
13 24
14 23
15 22
16 21
17 20
18 19
HP7501-A36
TPWR
HVD
LVD
SE
R9N
R9P
R8N
R8P
HGND
HGND
HGND
R7N
R7P
R6N
R6P
DIF_CAP
DIFFSENSE
MST/SLV
VREF
R1P
R1N
R2P
R2N
HGND
R3P
R3N
R4P
R4N
R5P
R5N
ISO
GND
1 28
2 27
3 26
4 25
5 24
6 23
7 22
8 21
9 20
10 19
11 18
12 17
13 16
14 15
HP7501-T28
TPWR
TPWR
R9N
R9P
R8N
R8P
HGND
R7N
R7P
R6N
R6P
DIF_CAP
DIFFSENSE
MST/SLV
2003/05/12 Ver. 0.0
1 HIMARK TECHNOLOGY INC.
1 page  
HP7501
Ultra320 LVD/SE SCSI Terminator
14
GND
Signal Ground.
15
MST/SLV
Mode select pin. When pull high, master mode will enable the DIFFSEN drive
SCSI bus. The DIFFSENSE driver is off when this pin is connected to ground.
16 DIFFSENSE This signal will drive 1.3V to the SCSI bus during the Master mode in order to
detect which type of device is connected to the SCSI bus. On power up, the
HP7501 will try to deliver LVD level to the DIFFSENSE line. If only LVD SCSI
devices are on the bus, the DIFFSENSE signal will be successfully driven to
1.3V and the terminator will configure the system for LVD operation. If any SE
device is on the bus, it will present a grounding level to the DIFFSENSE line.
This will indicate HP7501 to configure into SE operation. HP7501 will be in shut
down mode if DIFFSENSE detects a high voltage level.
17
DIF_CAP
This pin should be connected to a 0.1uF capacitor to ground and 20K resistor
to SCSI bus DIFFSENS line for DIFFSEN filter.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Termpower Voltage (SE)
Termpower Voltage (LVD)
Logic 0 (Low)
Logic 1 (High)
SYMBOL
Vtpwr
Vil
Vih
MIN
4.0
2.7
-0.3
2.0
Operating Temperature
Ta 0
TYP
MAX
UNITS NOTES
5.25 V
5.25 V
+0.8 V
Vtpwr+0.3
V
70 ℃
DC CHARACTERISTICS
PARAMETER
www.DataSheet4TUP.cWomR Current (SE)
TPWR Current (LVD)
Input Leakage Current
High
Input Leakage Current
Low
Output Current High
Vout = 2.4 V
Output Current Low
Vout = 0.4V
DIFFSEN Output Voltage
DIFFSEN Source Current
DIFFSEN Sink Current
DIFFSEN SE
Voltage Range
DIFFSEN LVD
Voltage Range
DIFFSEN HVD
Voltage Range
SYMBOL
Itpwr
Itpwr
Iih
Iil
Ioh
Iol
Vov
Isc
Isi
Vse
Vlvd
Vhvd
MIN
0
0
4.0
1.2
20
-0.3
0.7
2.4
TYP
MAX
UNITS NOTES
15 mA *1
25 mA
uA
1.0 uA
mA
mA
1.4 V
5 15 mA
200 uA
0.5 V
1.9 V
Vtpwr+0.3
V
2003/05/12 Ver. 0.0
5 HIMARK TECHNOLOGY INC.
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet HP7501.PDF ] | |
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