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Vishay Siliconix SIP5670CG-T1-E3
- Part No.:
- SIP5670CG-T1-E3
- Manufacturer:
- Vishay Siliconix
- Category:
- Signal Terminators
- Package:
- -
- Datasheet:
-
SIP5670CG-T1-E3.pdf
- Description:
- IC SCSI 9-LINE TERM 36-QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,088
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Product details
Overview
SIP5670CG-T1-E3 from Vishay is a 9-channel SCSI bus active terminator IC supporting multimode (S/E and LVD) operation, auto-selecting termination type via DIFFSENS input, with integrated SPI-3 mode change delay filter and master/slave configuration capability. It operates from 2.7 V to 5.25 V TERMPWR and is qualified for 0 °C to +70 °C.
For engineers reviewing the SIP5670CG-T1-E3 datasheet, SIP5670CG-T1-E3 pinout, SIP5670CG-T1-E3 application, or SIP5670CG-T1-E3 equivalent, key selection considerations include multimode SCSI termination compatibility, hot-swap support, differential failsafe biasing, thermal shutdown protection, and QSOP-36 package integration in RAID and SAN backplane designs.
Technical Context
The SIP5670CG-T1-E3 implements automatic S/E or LVD mode selection by monitoring the DIFFSENS signal level, entering high-impedance state when HPD is detected or DISABLE is asserted. It includes on-chip thermal shutdown and supports hot-swap insertion without bus disruption.
Its integrated SPI-3 mode change delay filter replaces the external 4.7-μF capacitor required for ULTRA-160 compliance, and master/slave input enables coordinated termination control across multiple devices on the same SCSI bus segment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Termination Channels | 9 independent SCSI signal lines with matched impedance and biasing |
| Supply Voltage Range (TERMPWR) | 2.7 V to 5.25 V - supports legacy and modern SCSI power rails |
| Operating Temperature | 0 °C to +70 °C - commercial-grade qualification for server/storage enclosures |
| SCSI Standards Compliance | SCSI-1, SCSI-2, SPI-2 (ULTRA-2), SPI-3 (ULTRA-160), SPI-4 (ULTRA-320) |
| Mode Selection | Auto-detect via DIFFSENS - eliminates manual jumper or configuration software |
| Integrated Filter | SPI-3 mode change delay filter - removes need for external 4.7-μF capacitor |
| Configuration Interface | Master/Slave input - enables synchronized enable/disable across multiple terminators |
Pinout & Package
Package: QSOP-36 (36-pin, 0.025" pitch, lead-free, RoHS-compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TERMPWR | Termination supply input | Power source for all internal termination resistors and bias circuits; device enters high-Z if removed |
| DISABLE | Active-low enable control | Asserting LOW disables termination and forces high-impedance bus interface |
| DIFFSENS | Differential mode sense input | Detects LVD vs. S/E bus voltage; auto-configures termination and biasing accordingly |
| MASTER/SLAVE | Configuration select input | Defines local device role in multi-terminator systems; determines timing coordination behavior |
| STATUS | Open-drain status output | Indicates active termination state; pulled up externally for system-level fault monitoring |
Key Features
| Feature | Design Value |
|---|---|
| Auto S/E or LVD mode selection | Eliminates manual configuration and prevents mismatched termination causing signal integrity failure |
| Differential failsafe bias | Maintains valid bus idle state under open-circuit or unterminated conditions, preventing false arbitration |
| Hot-swap compatibility | Allows live insertion/removal without disrupting SCSI bus operation or requiring system reboot |
| On-chip thermal shutdown | Protects against sustained overcurrent or ambient overheating by disabling termination until safe temperature restored |
| Integrated SPI-3 delay filter | Meets ULTRA-160 mode transition timing without external passive components, reducing BOM count and board area |
Applications
| Disk Array (RAID) | Storage Area Network (SAN) |
|---|---|
Use Scenario: Termination at end of multi-disk SCSI backplane in enterprise RAID controller. IC Role / Device Role / Timing Role: Active bus terminator providing impedance-matched termination and failsafe bias for 9 SCSI data lines. Use Value: Prevents signal reflections and ensures reliable arbitration and data transfer at ULTRA-160 speeds (80 MB/s). | Use Scenario: Termination node in Fibre Channel-to-SCSI bridge subsystem within SAN fabric. IC Role / Device Role / Timing Role: Multimode terminator adapting between legacy S/E and high-speed LVD SCSI segments. Use Value: Enables seamless interoperability across mixed-mode SCSI infrastructure without manual reconfiguration. |
| Network Attached Storage (NAS) | Server Backplane |
Use Scenario: Compact NAS enclosure with hot-swappable drive bays and internal SCSI interconnect. IC Role / Device Role / Timing Role: Hot-swap–capable terminator enabling drive replacement without powering down the SCSI bus. Use Value: Maintains continuous storage availability during maintenance, meeting enterprise uptime requirements. | Use Scenario: High-density server motherboard with dual-terminated SCSI bus for boot and expansion peripherals. IC Role / Device Role / Timing Role: Master-configured terminator coordinating with slave units to avoid double-termination faults. Use Value: Ensures deterministic bus initialization and eliminates termination conflicts in complex backplane topologies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SCSI bus termination applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI UCC5670 | Same pinout, identical functional spec, QSOP-36 package, no integrated delay filter | Requires external 4.7-μF capacitor for SPI-3 compliance | Select when legacy design reuse is prioritized and external filtering is acceptable |
| Maxim DS2127 | 14-channel, SQFP-48 package, supports only LVD mode, no master/slave input | Limited to fixed LVD-only environments; incompatible with S/E or multimode buses | Select only for dedicated ULTRA-160 LVD subsystems where channel count and mode flexibility are secondary |
Compared with TI UCC5670 and Maxim DS2127, the SIP5670CG-T1-E3 uniquely combines 9-channel multimode termination, integrated SPI-3 delay filtering, and master/slave coordination in QSOP-36 - enabling compact, compliant, and configurable SCSI termination without external passives or mode jumpers.
Availability
SIP5670CG-T1-E3 is available at Aetrix Electronics and suitable for disk array (RAID), storage area network (SAN), and network attached storage (NAS) systems requiring stable component supply, long-term lifecycle support, and SCSI-2 through SPI-4 compliance.
Supply support for SIP5670CG-T1-E3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay Intertechnology is a global manufacturer of discrete semiconductors and passive components, specializing in high-reliability power management and signal integrity solutions.
The SiP56xx family was designed specifically for robust, standards-compliant SCSI bus termination in enterprise storage subsystems - addressing impedance matching, mode adaptability, thermal safety, and hot-swap resilience.
FAQ
What SCSI standards does the SIP5670CG-T1-E3 support?
The SIP5670CG-T1-E3 supports SCSI-1, SCSI-2, SPI-2 (ULTRA-2), SPI-3 (ULTRA-160), and SPI-4 (ULTRA-320). It does not support SPI-5 (ULTRA-640), which is limited to the SiP5696 variant. All supported modes are enabled automatically based on DIFFSENS voltage detection, and the SIP5670CG-T1-E3 remains compliant without firmware or external configuration.
Does the SIP5670CG-T1-E3 require an external capacitor for SPI-3 compliance?
No. The SIP5670CG-T1-E3 includes an integrated SPI-3 mode change delay filter that meets ULTRA-160 timing requirements without external components. This eliminates the need for the traditional 4.7-μF low-pass capacitor, reducing PCB area and BOM cost while improving reliability compared to discrete RC solutions used with earlier terminators like the TI UCC5670.
How does the SIP5670CG-T1-E3 handle HPD (high-power differential) SCSI buses?
The SIP5670CG-T1-E3 monitors the DIFFSENS line and automatically enters a high-impedance state when HPD operation is detected - preventing damage or bus contention. It is explicitly not intended for use on HPD buses, and this fail-safe response ensures safe coexistence in mixed-environment backplanes where HPD and LVD signals may be present.
What is the function of the MASTER/SLAVE pin on the SIP5670CG-T1-E3?
The MASTER/SLAVE pin configures the SIP5670CG-T1-E3's role in multi-terminator systems: MASTER devices coordinate timing and enable sequencing, while SLAVE devices follow synchronization signals. This prevents double-termination faults in daisy-chained or dual-ended SCSI configurations and is essential for reliable operation in RAID controllers and server backplanes using multiple SIP5670CG-T1-E3 units.
Is the SIP5670CG-T1-E3 compatible with hot-swap insertion?
Yes. The SIP5670CG-T1-E3 is fully hot-swap compatible: it safely powers up/down without disrupting the SCSI bus, thanks to controlled enable sequencing, internal current limiting, and high-impedance default states on power loss or DISABLE assertion. This allows drive or module replacement in live RAID and NAS systems without system interruption - a critical requirement validated per SCSI hot-swap specifications.
SIP5670CG-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- SCSI
- Number of Terminations:
- 9
- Voltage - Supply:
- 2.7V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-QSOP
SIP5670CG-T1-E3 FAQ
1.How can I place an order for SIP5670CG-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SIP5670CG-T1-E3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SIP5670CG-T1-E3 reliable?
The price and inventory of SIP5670CG-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SIP5670CG-T1-E3 is usually 5 days.
3.What payment methods are accepted for SIP5670CG-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SIP5670CG-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SIP5670CG-T1-E3?
SIP5670CG-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SIP5670CG-T1-E3 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SIP5670CG-T1-E3?
For technical support, including SIP5670CG-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SIP5670CG-T1-E3 requirements.
6.How does Aetrix verify that SIP5670CG-T1-E3 is sourced from the original manufacturer or authorized distributors?
All SIP5670CG-T1-E3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SIP5670CG-T1-E3 meets industry standards.
7.What is the process for return or replacement of SIP5670CG-T1-E3?
All SIP5670CG-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SIP5670CG-T1-E3, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SIP5670CG-T1-E3 part is unused and in its original packaging.
Return procedure for SIP5670CG-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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