|
|
PDF MCCS142236 Data sheet ( Hoja de datos )
| Número de pieza | MCCS142236 | |
| Descripción | 18-Bit Switchable Active SCSI-2 Bus Terminator | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MCCS142236 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
|
No Preview Available !
MCCS142236
18-Bit Switchable Active
SCSI-2 Bus Terminator
(110Ω)
With Voltage Regulator
The MCCS142236 is a precision 18−bit switchable active SCSI−2
bus terminator with an on−board 2.85V regulator. When the
Disconnect pin is LOW according to the truth table below, the
MCCS142236 provides 110Ω ±5% precision resistor pull−ups to a
2.85V reference for termination of 18−bits in a SCSI−2 standard bus
system interface.
When the Disconnect pin is HIGH, the device outputs are in the high
impedance state on all 18 bits. The regulator is also turned off, greatly
reducing standby power. Even with no Termpwr applied, the outputs
remain in the high impedance state.
http://onsemi.com
18−BIT SWITCHABLE
ACTIVE SCSI−2
BUS TERMINATOR
• Complies With SCSI and SCSI−2 Standards
• Pin Compatible With UC5601, UC5602 and UC5608
• For Opposite Disconnect Polarity See ON Semiconductor’s
MCCS142238
• 18 Switchable 110Ω Terminating Resistors
• 4pF Channel Capacitance During Disconnect
• Fully Supports Active Negation (Sinks Minimum of 220mA)
• Built−In 2.85V Regulator With Low Dropout Voltage
• Very Low Supply Current When Resistors Are Disabled (30μA Max)
• −650mA Source Current
• Thermal Shutdown Protection
• Thin Profile Surface Mount Package: 28−Lead SOIC
DW SUFFIX
28−LEAD SOIC WIDE
CASE 751F−05
The regulator has a guaranteed dropout voltage of less than 900mV, allowing regulation of supply voltages less than 4.0V.
The MCCS142236 is protected by thermal shutdown. Other features include low disconnect current (30μA), over 220mA of
active negation current sink capability, and 4pF disconnect capacitance.
In 8−bit SCSI applications (“A” cable), only one MCCS142236 is needed at each end of the SCSI cable in order to terminate
the 18 active signal lines. In 16−bit WIDE SCSI applications (“P” cable), either two MCCS142236s, one each of the
MCCS142236 and MCCS142237, or three MCCS142237s would be needed at each end of the SCSI cable in order to properly
terminate the 27 active signal lines. The MCCS142237 is a 9−bit version of the MCCS142236.
For information on “Power Dissipation for Active SCSI Terminators,” refer to ON Semiconductor Application Note
AN1408/D, available through ON Semiconductor Fax System, or through the ON Semiconductor Literature Distribution
Center.
TRUTH TABLE
Disconnect
0
1
Output
Terminated
Z
© Semiconductor Components Industries, LLC, 2010
February, 2010 − Rev. 6
1
Publication Order Number:
MCCS142236/D
1 page  
MCCS142236
PACKAGE DIMENSIONS
DW SUFFIX
PLASTIC SOIC PACKAGE
CASE 751F−05
ISSUE G
−X− D
28 15
E
−Y−
1
PIN 1 IDENT
H
0.25 M Y M
14
B
0.025 M
G
TX S
A1
YS
A
0.10
−T− SEATING
PLANE
C
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS D AND E DO NOT INCLUDE MOLD
PROTRUSION
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBER
PR5OTRUSION SHALL NOT BE 0.13 TOTATL IN
EXCESS OF B DIMENSION AT MAXIMUM
MATERIAL CONDITION.
MILLIMETERS
DIM MIN MAX
A 2.35 2.65
A1 0.13 0.29
B 0.35 0.49
C 0.23 0.32
D 17.80 18.05
E 7.40 7.60
G 1.27 BSC
H 10.05 10.55
L L 0.41 0.90
M 0_ 8_
M
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: [email protected]
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5773−3850
http://onsemi.com
5
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
MCCS142236/D
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet MCCS142236.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MCCS142233 | 9-Bit Switchable SCSI Passive Bus Terminator |  Motorola Semiconductors |
| MCCS142236 | 18-Bit Switchable Active SCSI-2 Bus Terminator | ON Semiconductor |
| MCCS142238 | 18-Bit Switchable Active SCSI-2 Bus Terminator | Motorola Semiconductors |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |