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Fast SCSI and Ultra SCSI require the use of active terminations at both ends of every cable segment in a SCSI system with single-ended drivers and receivers. The DS21T05 SCSI Terminator, which is fully compliant with these standards, enables the designer to gain the benefits of active termination: greater immunity to voltage drops on the TERMPWR (TERMination.
PIN ASSIGNMENT Fully compliant with SCSI-1, Fast SCSI and Ultra SCSI 16 1 PD TERMPWR1 Functionally compatible to the DS21T07, 15 2 R1 VREF2 targeted for high volume applications 14 3 R2 R9 R8 4 13 Provides active termination for nine signal R3 12 5 R4 R7 lines 11 6 R5 R6 Laser-trimmed 110-ohm termination resistors 10 7 VREF1 NC have 5% tolerance 9 8 GND TERMPWR2 Low dropout voltage DS21T05Z 16-Pin SOIC (150-mil) Power-down mode isolates termination resistors from the bus PD TERMPWR1 1 16 SCSI bus hot-plug compatible R1 VREF2 2 15 Fully supports actively negated SCSI signals R2 NC 3 14 Onboar.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | DS21T06 |
Dallas Semiconducotr |
SCSI Terminator |
|
| 2 | DS21T07 |
Dallas Semiconducotr |
SCSI Terminator |
|
| 3 | DS21T09 |
Dallas Semiconducotr |
Plug and Play SCSI Terminator |
|
| 4 | DS21054E |
Microchip Technology |
16K 1.8V I2C SERIAL EEPROM |
|
| 5 | DS2106SY |
Dynex Semiconductor |
Rectifier Diode |
|
| 6 | DS2107SY |
Dynex Semiconductor |
Rectifier Diode |
|
| 7 | DS2108 |
Dallas Semiconducotr |
Differential SCSI Switchable Terminator |
|
| 8 | DS210W |
AiT Components |
SCHOTTKY BARRIER RECTIFIERS |
|
| 9 | DS210W |
Jingdao Microelectronics |
Surface Mount Schottky Barrier Rectifier |
|
| 10 | DS210W |
Rectron |
Surface Mount Schottky Barrier Rectifier |
|
| 11 | DS210W |
BLUE ROCKET ELECTRONICS |
Surface Mount Schottky Barrier Rectifier |
|
| 12 | DS2110 |
Dallas Semiconductor |
Plug and Play SCSI Terminator |
|