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參數(shù)資料
| 型號： | LX5245 |
| 廠商： | Microsemi Corporation |
| 英文描述： | 9 - LINE LVD SCSI TERMINATO |
| 中文描述： | 9 -線支持LVD SCSI TERMINATO |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 177K |
| 代理商： | LX5245 |
9-L
INE
LVD SCSI T
ERMINATOR
P
R E L I M I N A R Y
D
A T A
S
H E E T
T
H E
I
N F I N I T E
P
O W E R
O F
I
N N O V A T I O N
LX5245/5246/5247
D E S C R I P T I O N
K E Y F E AT U R E S
I
2.5pF Typical Disabled Output
Capacitance
I
Fast Response, No External Capacitors
Required
I
5μA Supply Current In Disconnect Mode
I
20mA Supply Current During Normal
Operation
I
Logic Command Disconnects All
Termination Lines
I
Diffsense Line Driver
I
Current Limit And Thermal Protection
I
Compatible With The Pending SPI-2 LVD
Specification
I
Mention 5249 as LVD only terminator
with pinout compatable with industry
standard multi-mode terminators
I
Pin compatable with unitrode UCC5640
P R O D U C T H I G H L I G H T
The LX5245/5246/5247 ICs are Low Volt-
age Differential (LVD) Terminators
de-
signed to comply with the LVD termination
specification in the SPI-2 document. The
LX5245/5246/5247 are designed specifically
for LVD applications. Because the LX5245/
5246/5247 support only LVD, they have lower
output capacitance than multimode termina-
tors such as the LX5240.
The
LX5245/5246/5247
Linfinity’s UltraMAX Technology
which
delivers the ultimate in SCSI bus performance
while saving component cost and board area.
Elimination of the external capacitors also
mitigates the need for a lengthy capacitor
selection process. The individual high band-
width drivers also maximize channel sepa-
ration and reduces channel-to-channel noise
and cross talk. The high-bandwidth
UltraMAX architecture insures ULTRA-2 per-
formance, while providing a clear migration
path to ULTRA-3 and beyond.
Utilize
When The LX5245/5246/5247 Are
Enabled, The Differential Sense
(DIFFSENSE) Pin Supplies A Voltage
Between 1.2V And 1.4V.
In application,
the terminator DIFFSENSE output is con-
nected to the system DIFFSENSE line. If
there are no single ended or HVD devices
attached to the system the LVD output will
be enabled. If the DIFFSENSE line is LOW,
indicating a single ended device, the LX5245/
5246/5247 output will be HiZ. If the
DIFFSENSE line is HIGH, indicating a high
voltage differential device the LX5245/5246/
5247 output will be HiZ.
The LX5245/5246/5247 ICs Have A TTL
Compatible DISCONNECT Pin.
The
LX5245/47 is active LOW and the LX5246
is active HIGH. During sleep mode, power
dissipation is reduced to a meager 5μA, while
also placing all outputs in a HI Z state. Also
during sleep mode, the DIFFSENSE function
is disabled and is placed in a HI Z state.
V
(+)
V
(-)
V
C
V
OD
= V
(-)
- V
(+)
, Logic = 0
NEGATED
0V
100mV
-100mV
LX5245/46/47
LX5245/46/47
B
U S
V
O L T A G E 1
V
O D
UltraMAX
TM
0 to 70
LX5245CPW
LX5246CPW
PA C K A G E O R D E R I N F O
PW
T
A
(°C)
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. LX5245CPWT)
Plastic TSSOP
24-pin
28-PIN
Copyright 2000
Rev. 0.6 10/00
1
11861 W
ESTERN
A
VENUE
, G
ARDEN
G
ROVE
, CA. 92841, 714-898-8121, F
AX
: 714-893-2570
L
I N
F
I N I T Y
M
I C R O E L E C T R O N I C S
I
N C
.
NOTE:
For current data & package dimensions, visit our web site:
http://www.linfinity.com.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LX5245CPW | 9 - LINE LVD SCSI TERMINATO |
| LX5246 | 9 - LINE LVD SCSI TERMINATO |
| LX5246CPW | 9 - LINE LVD SCSI TERMINATO |
| LX5247 | 9 - LINE LVD SCSI TERMINATO |
| LX5249CPWK | 9 - LINE LVD SCSI TERMINATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LX5245CPW | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:9 - LINE LVD SCSI TERMINATO |
| LX5245-CPWT | 制造商:Microsemi Corporation 功能描述:SCSI TERMINATION 3V TO 5.25V 24TSSOP - Tape and Reel |
| LX5246 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:9 - LINE LVD SCSI TERMINATO |
| LX5246CPW | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:9 - LINE LVD SCSI TERMINATO |
| LX5247 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:9 - LINE LVD SCSI TERMINATO |
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