DS2108S The Dallas Semiconductor DS2108S is a differential SCSI switchable terminator. It provides precise termination for SCSI buses, operating with signal voltages from -7 to +12V.
Mfr Part #:

DS2108S

Available from 1 distributors
Mfr Name: Dallas Semiconductor
Dallas Semiconductor
The Dallas Semiconductor DS2108S is a differential SCSI switchable terminator. It provides precise termination for SCSI buses, operating with signal voltages from -7 to +12V.
✓ Total Stock: 2,588 pcs
$ Price Range: $0.30

DS2108S Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,588 pcs
2588 pcs On Request 1 On Request On Request 01+ On Request On Request

DS2108S Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Industrial Grade
Medical Grade
Military Grade
Storage Temperature
Tape & Reel

DS2108S Description

Short technical summary and product information.

The DS2108S from Dallas Semiconductor is a monolithic integrated circuit designed as a differential SCSI switchable terminator. It is fully compliant with SCSI, SCSI-2, and SCSI-3 standards, and also conforms to the EIA RS-485 standard.

 

This device integrates eighteen 330-ohm and nine 150-ohm termination resistors with a ±5% tolerance. These resistors can be switched on or off via a power-down pin, allowing isolation from the SCSI bus. In its powered-down mode, the DS2108S adds only 6 pF capacitance to each signal line, which is well within the SCSI-3 allotment.

 

The DS2108S operates with SCSI signal voltages ranging from -7 to +12 Volts. It consumes a typical 56 mA in its quiescent state and only 1 mA when powered down. The component is housed in a 24-pin plastic SOIC package, offering a space-saving surface-mount solution.

 

This SCSI terminator is suitable for High Voltage Differential (HVD) SCSI systems requiring switchable termination, providing precise and reliable signal termination for improved system performance.

DS2108S Quick Information

Product Type: SCSI Terminator
Canonical Name: DS2108S Differential SCSI Switchable Terminator
Subcategory: Differential SCSI Switchable Terminator

DS2108S Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

DS2108S Estimated Pricing

Qty Low High
1+ $0.30 $0.30

Estimated market price range - modelled values for guidance only, not live distributor offers.

DS2108S Features

  • Fully compliant with SCSI, SCSI-2, and SCSI-3 standards.
  • Provides differential termination for 9 pairs of signal lines.
  • Operates with SCSI signal voltages of -7 to +12 Volts.
  • Laser-trimmed 330 and 150-ohm termination resistors.
  • Switchable power-down mode with low 6 pF capacitance.

DS2108S Applications

  • Used in High Voltage Differential (HVD) SCSI systems.
  • Enables switchable termination for SCSI buses.
  • Suitable for SCSI-2 and SCSI-3 interfaces.
  • Integrates termination resistors on a single IC.

DS2108S FAQs

6 frequently asked questions generated from this part’s specifications.
What SCSI standards does the DS2108S comply with?

The DS2108S is fully compliant with SCSI, SCSI-2, and SCSI-3 standards.

What are the termination resistor values in the DS2108S?

The DS2108S integrates eighteen 330-ohm and nine 150-ohm termination resistors.

What is the tolerance of the termination resistors?

The laser-trimmed 330 and 150-ohm termination resistors have a ±5% tolerance over the full temperature range.

What is the operating voltage range for SCSI signals?

The DS2108S operates with SCSI signal voltages of -7 to +12 Volts.

What is the power-down capacitance of the DS2108S?

The DS2108S has a low power-down capacitance of 6 pF.

What package type is the DS2108S available in?

The DS2108S is available in a 24-pin plastic SOIC package.

DS2108S Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
View All Alternate Parts
0402N680F500CG
0402N680F500CG
Walsin Technology
The Walsin Technology 0402N680F500CG is a ceramic capacitor. It features RoHS3 compliance and MSL Level 1.
View Part
LM324DT
LM324DT
STMicroelectronics
The STMicroelectronics LM324DT is an operational amplifier. It is RoHS3 Compliant and has an MSL rating of 1 Unlimited.
View Part
PESD3V3L1BA
PESD3V3L1BA
NXP Semiconductors
The NXP Semiconductors PESD3V3L1BA is a TVS Diode with RoHS3 compliance and MSL Level 1.
View Part
SQJB48EP-T1_JE3
SQJB48EP-T1_JE3
Vishay
The Vishay Dale SQJB48EP-T1_JE3 is a single MOSFET transistor. It features RoHS3 compliance and an MSL of 1.
View Part
Home

Categories