Overview
The VSC7155XVU-02 is a component from the VSC7155 series, which is part of the Serial Attached SCSI (SAS) expander family produced by Analog Devices Inc./Maxim Integrated. This device is designed to provide SAS port expansion, adhering to the ANSI T10 Serial Attached SCSI specifications. It is typically used in midrange and enterprise storage environments, including blade servers, JBODs (Just a Bunch of Disks), and RAID systems.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Operating Temperature Range | TMIN to TMAX | -40°C | +125°C | °C | |
| Junction Temperature | +150°C | °C | |||
| Storage Temperature Range | -65°C | +150°C | °C | ||
| Power Supply | 3.3V, 1.8V, 1.2V | V | |||
| Package | 484-Pin, 31mm x 31mm TBGA |
Key Features
- 24 SAS Expander PHYs with Integrated SerDes, each capable of operating independently at 1.5Gbps or 3.0Gbps.
- Configurable as a SAS Fanout or Edge Expander.
- Nonblocking Switch Architecture (Any PHY to Any PHY Connectivity).
- Table Routing and SMP and SSP Virtual PHY with Initiator and Target Capability.
- Embedded Enclosure Management Processor for Local Control and SES Functions.
- Automatic PHY Speed Detection and Negotiation.
- Serial ATA Drive Support via Internal STP/SATA Bridging Functions.
- Programmable Output Preemphasis and Input Signal Equalization Levels.
- End-to-End Zoning and Comprehensive Statistics (per PHY).
Applications
The VSC7155XVU-02 is targeted at embedded applications in midrange and enterprise storage environments. These include:
- Blade servers
- JBODs (Just a Bunch of Disks)
- RAID systems
- Distributing SAS signals to an array of disk drives in servers or external enclosures.
Q & A
- What is the VSC7155XVU-02 used for?
The VSC7155XVU-02 is used for SAS port expansion in storage environments such as blade servers, JBODs, and RAID systems.
- What are the operating temperature ranges for the VSC7155XVU-02?
The operating temperature range is -40°C to +125°C.
- What are the power supply options for the VSC7155XVU-02?
The device operates with 3.3V, 1.8V, and 1.2V power supplies.
- What is the package type for the VSC7155XVU-02?
The device is packaged in a 484-Pin, 31mm x 31mm TBGA.
- Does the VSC7155XVU-02 support SATA drives?
Yes, it supports Serial ATA drives via internal STP/SATA bridging functions.
- What is the maximum data rate for each PHY in the VSC7155XVU-02?
Each PHY can operate at up to 3.0Gbps.
- Is the VSC7155XVU-02 configurable as a fanout or edge expander?
Yes, it can be configured as either a SAS Fanout or Edge Expander.
- Does the VSC7155XVU-02 have built-in enclosure management capabilities?
Yes, it includes an embedded enclosure management processor for local control and SES functions.
- What kind of switch architecture does the VSC7155XVU-02 use?
The device uses a nonblocking switch architecture allowing any PHY to any PHY connectivity.
- Are there any comprehensive statistics available per PHY?
Yes, the device provides comprehensive statistics per PHY.
