VSC7157XYS-03

$126.32

Description：IC INTERFACE CONTROLLER
Series：*

SKU:106b11d823fe Category: I/O Expanders Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：IC INTERFACE CONTROLLER
Series：*
Mfr：Analog Devices Inc./Maxim Integrated
Package：Bulk,Tube
Number of I/O：-
Interface：-
Interrupt Output：-
Features：-
Output Type：-
Current - Output Source/Sink：-
Clock Frequency：-
Voltage - Supply：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Grade：-
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VSC7157XYS-03

Overview

The VSC7157XYS-03 is a 36-PHY Serial Attached SCSI (SAS) edge/fanout expander supporting 1.5Gbps and 3.0Gbps data rates. It features an internal non-blocking cross-bar matrix for any-to-any PHY connectivity. The device integrates 36 serializer/deserializers, per-PHY diagnostics, retiming elasticity buffers, and virtual PHY engines for SMP and STP protocols. Power requirements include 3.3V, 1.8V, and 1.2V supplies. It operates within a temperature range of -40°C to +85°C and is housed in a 564-pin TBGA package measuring 35mm x 35mm.

Feature Summary

Supports SAS 1.0 and 1.1 specifications for both edge and fanout expansion topologies
Includes embedded enclosure management processor compatible with SES functions
Provides comprehensive per-PHY statistics and error monitoring including CRC and parity checks
Features programmable output deemphasis and input signal equalization for backplane integrity

Applications

Blade servers
JBOD arrays
Enterprise storage environments
RAID systems
Storage Area Network appliances

Procurement Notes

All versions of the VSC7157 are discontinued and subject to Last Time Buy restrictions. New orders cannot be placed after the final procurement window closes. Verify availability through authorized distributors before initiating design-in processes. Ensure compliance with end-of-life transition plans for existing production lines.

Selection Notes

Select this component for midrange and enterprise storage applications requiring high-density SAS port expansion. The integrated SerDes and management controller reduce external component count. Consider the 564-pin package complexity during PCB layout. Evaluate thermal dissipation requirements given the power domains and pin density.

Part Context

This part belongs to the VSC7157 series of SAS expanders manufactured by Analog Devices Inc./Maxim Integrated. The XYS suffix denotes specific package and testing variations within the SBGA form factor. The series targets upgrades from parallel SCSI architectures to serial SAS infrastructures.