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Semtech
Semtech Corporation
PM8 Axial Leaded Hermetically Sealed Standard Recovery Rectifier Diode

Description
Quick reference data
  VR = 600V - 1000V
  IF = 2.0A
  trr = 3µS
  IR = 1.0µA
 
Features
♦ Avalanche capability
♦ High thermal shock resistance
♦ Glass passivated for hermetic sealing
♦ Low reverse leakage currents
♦ Low forward voltage drop

 


other parts : PM0  PM6  
PM8 PDF
PMC-Sierra
PMC-Sierra
PM8379 20-Port 4.25 Gbit/s FC-AL Cut-Through Switch

The CTS 20x4G is designed to interface directly to Fibre Channel disk drives in a storage array. It can interface directly to optics or to cables at the ingress/egress point of an enclosure and is able to determine if an incoming frame is destined for a drive within that enclosure. After determining which port is associated with the frames recipient, a cut through operation to that port is performed thereby significantly reducing system latency and improving performance.
The CTS 20x4G provides unique disk isolation features that significantly increase total system availability, reliability, and serviceability.

FEATURES
GENERAL
• 20 independent rate selectable 1.0625, 2.125 or 4.25 Gbit/s physical interfaces.
• Register and software compatible to the PM8368 PBC 18x2G, PM8369 PBC 18x4G, PM8372 PBC 4x2G and PM8377 PBC 4x4G.
• Compliant to FC jitter specifications on a per-port basis.
• Supports single-ended or differential 106.25 MHz reference clock.
• Per port monitoring and diagnostics:
• LPSM Monitoring on each port.
• Disk isolation and per port serial loopback.
• Configurable Digital Loss of Link: analog LOS Detect, 8B/10B disparity errors/error rate, CRC errors/error rate, word synchronization error/error rate, and compliant frequency of comma patterns detected (configurable thresholds for each with corresponding pin interrupts).

CUT-THROUGH SWITCHING
• Integrated cut-through switching and arbitration management enables up to 200% improvement in EDR and IOPS.
• Parallel arbitration supported with arbitration priority and access fairness preserved.
• Automatic or CPU controlled initialization of AL_PA table.
• Supports dynamic half duplex, half/full duplex operation, LPSM transfer state, multicast/broadcast (OPNy).

APPLICATIONS
• SBOD Storage Systems.
• MBOD Storage Systems.
• RAID Storage Systems.
• JBOD Storage Systems.
• FC to SATA Storage Systems.
• FC-AL Nodes.
• Fibre Channel Hubs.
• 1.0625, 2.125, and 4.25 Gbit/s Backplanes.

PM8379 PDF
PMC-Sierra
PMC-Sierra
PM8172 PM8172 System Controller

FEATURES
The PM8172 system controller is ideal for various designs of advanced set-top boxes, DVD players, game stations, and Internet terminal appliances. The PM8172 interfaces to PMC-Sierra’s RM5231A, RM7035C and RM7935 MIPS RISC processors.

CPU INTERFACE
• Connects to PMC-Sierra’s RM5231A, RM7035C, and RM7935 64-bit MIPS RISC microprocessors.
• Supports CPU bus frequencies up to 100 MHz.

SDRAM CONTROLLER
• 32-bit data bus interface.
• Supports two banks of SDRAM, up to 128 Mbytes in size.
• Provides a deep buffer for CPU to SDRAM burst transfers and for PCI to SDRAM burst transfers.
• Supports bus frequencies up to 100 MHz.

FLASH/ROM INTERFACE
• Supports Flash memory area up to 64 Mbytes, with 8-bit, 16-bit, and 32-bit data access capability.
• Supports a ROM area size up to 4 Mbytes, with 8-bit, 16-bit, and 32-bit data access capability.
• Supports a maximum of 12 chip-select signals.
• Shared with a 68K-like peripheral bus.

PERIPHERAL BUS CONTROLLER
• Provides a 68K-like bus interface.
• Does not require an external latch for addressing.
• Provides an 8-bit and 16-bit data bus interface.
• Shared with the Flash/ROM interface.
• Supports up to four DMA channels.
• Provides cycle posting to avoid performance hits from slower devices.

PCI BUS CONTROLLER
• Provides CPU to PCI buffers for burst
transfers.

• Provides a PCI arbiter that supports up
to five individual bus master devices.
• Supports 33 MHz bus frequency.
• Provides a 32-bit data bus interface.

INTERRUPT CONTROLLER
• Supports a maskable interrupt to the CPU and a non-maskable interrupt to the CPU for severe events.
• The priority order of interrupt request lines can be assigned by software.
• Module interrupts can be masked on/off independently by setting the corresponding mask registers.

DMA CONTROLLER
• Supports four channel requests for LPC or ECP DMA mode data transfers.
• Supports PCI bus master accessing to the SDRAM.

CHAINING DMA CONTROLLER
• Supports four independent software DMA channels for transferring data between SDRAM and PCI devices.
• Supports chaining and non-chaining modes.
• Supports rotating and fixed priority types. (Continue..)

 

PM8172 PDF
PMC-Sierra
PMC-Sierra
PM8312 High-Density 32-Channel T1/E1/J1 Framer with Integrated VT/TU Mapper & M13 Multiplexer

PRODUCT OVERVIEW
The PM8312 TEMUX 32 device is a 64-Mbit/s multi-channel T1/E1 framer with an integrated VT/TU Mapper and M13 Multiplexer.

PRODUCT HIGHLIGHTS
• This monolithic device integrates:
• 32 T1 framers.
• 32 E1 framers.
• One SONET/SDH VT1.5/VT2/TU11/TU12 bit asynchronous or byte synchronous mapper.
• One full-featured M13 multiplexer with DS3 framer.
• One SONET/SDH DS3 mapper for terminating unchannelized DS-3 or DS3-multiplexed T1/E1 streams.
• Supports a wide range of T1, E1 and J1 framing formats.
• Supports DS3 framing modes such as M23, C-bit parity, and ITU-T Recommendation G.747.
• Stand-alone unchannelized E3 framer mode (ITU-T Rec. G.751 or G.832) for access to the entire E3 payload.
• Flexible line-side and system-side interface support:
   • Supports a 19.44-MHz Scaleable Bandwidth Interconnect (SBI™) Interface for high-density line-side device interconnection to PMC-Sierra's T1/E1 line interface products, including the 8-port PM4323 OCTLIU LT and the 32-port PM4329 HDLIU.
   • Provides a 19.44 or 77.76 MHz SONET/SDH Add/Drop Telecom bus interface for seamless connection with PMC-Sierra’s SONET/SDH devices.
   • Supports a byte-serial Scaleable Bandwidth Interconnect (SBI) interface at 19.44 MHz or 77.76 MHz for high-density system side device interconnection to PMC-Sierra’s link layer products.
   • Supports 8 Mbit/s H-MVIP system interface for all T1 or E1 links, a separate 8 Mbit/s H-MVIP system interface for all T1/E1 CAS channels, and a separate 8 Mbit/s H-MVIP system interface for all T1 or E1 CCS and V5.1/V5.2 channels.
   • Supports 28 T1 or 21 E1 links in DS3 mode and up to 32 T1 or E1 links when using the line-side SBI interface or SONET/SDH mode.
   • Supports transparent virtual tributaries when the SBI interface is used with a SONET/SDH mapper.
   • Supports insertion and extraction of arbitrary rate (e.g. fractional DS3) data streams to and from the SBI bus interface.
• Provides jitter attenuation in the T1/E1 tributary receive and transmit directions.
• Provides three independent de-jittered T1 or E1 recovered clocks for system timing and redundancy.
• Provides per-link diagnostic and line loopbacks.
• Provides PRBS generators and detectors at DS3 and E3 rates, and on each tributary for error testing at T1, E1 and NxDS0 rates as recommended in ITU-T O.151, 0.152.
• Provides a generic eight-bit microprocessor bus interface for configuration, control and status monitoring.
• Provides a standard five-signal P1149.1 JTAG test port for boundary scan board test purposes.
• Feature-rich functional software drivers available with device.

APPLICATIONS
• Wireless Base Station Controllers or Radio Network Controllers
• Wireless Base Stations or 3G Node Bs
• Voice and Media Gateways
• Access and Edge Routers
• Multi-Service Switches
• Mult-Service Edge Aggregation Equipment
• Multi-Service Provisioning Platforms
• xDSL and FTTx Uplink Cards

 


other parts : PM8312TEMUX32  
PM8312 PDF
PMC-Sierra
PMC-Sierra
PM8621 8G Narrowband Switch Element

Description
The PM8621 NSE-8G is a monolithic CMOS integrated circuit packaged in a 480 ball UBGA that performs DS0 and above granularity space switching on 12 SBI336 streams carried as serial SBI336S in 8B/10B coding over LVDS at 777.6 Mbit/s. The NSE-8G also performs VT1.5/VT2 and above granularity switching on 12 STS-12/STM-4 SONET/SDH streams, carried as Serial TelecomBus signals in 8B/10B coding over LVDS at 777.6 Mbit/s.

Features
The Narrowband Switch Element 8G (NSE-8G):
•  Implements a Scaleable Bandwidth Interconnect (SBI™) DS0 granularity Space switch.
•  Implements a SONET/SDH VT1.5/VT2/TU11/TU12 granularity Space switch for the serial 777.6 MHz LVDS TelecomBus.
•  With an allied PM8610 SBS or PM8611 SBS-lite device, implements a DS0 granularity Memory-Space-Memory switch.
•  Supports 12 STS-12 equivalent serial ports via 777.6 MHz, 8B/10B encoded LVDS links (each port can be either Serial TeleCombus or Serial SBI336S)
•  When configured for SBI mode, switches DS0 or N*DS0 for all T1 and E1 tributaries and aggregate columns for switching T1, E1, TVT1.5, TVT2, DS3 and E3 tributaries.
•  When configured for the serial 777.6 MHz TelecomBus interface, switches any SONET/SDH virtual tributary (VT) or tributary unit (TU) up to STS-1.
•  Supports switching of arbitrary non-standard octet aggregates.
•  Supports unicast, multicast, and broadcast for all switching modes.
•  Provides 8 Gbit/s (96,768 DS0s, 4.032 T1s/VT1.5s, 3,024 E1s/VT2s, 144 DS3s/E3s) switching.
•  Works with SBS devices that support up to four 19.44 MHz SBI or one 77.76 MHz SBI336 bus that communicates with PMC-Sierra’s SBI device family. Alternatively, the SBS and SBS-lite devices support up to four 19.44 MHz STS-3 TelecomBuses or one 77.76 MHz STS-12 TelecomBus for connection with PMC-Sierra’s SPECTRA family of devices.
•  Can be combined in applications with PMC-Sierra’s CHESS™ chip set devices (PM5374 TSE and PM5307 TBS).
•  Supports a microprocessor interface used to configure/control the NSE and make DS0-granularity switch settings.
•  Supports clean error checked 8 Mbit/s full-duplex, in-band communications channels from its attached microprocessor to the attached microprocessors of each of the 12 attached SBS336S devices. This channel is used to initialize and control the SBSs, or other such devices, and to implement call-establishment set-up changes.
•  Supports JTAG for all non-LVDS signals.
•  Requires dual power supplies at 1.8V and 3.3V.
•  Packaged as a 480 ball UBGA.
•  In conjunction with the SBS or SBS-lite, supports “1+1” and “1:N” fabric redundancy.

Applications
The PM8621 Narrowband Switch Element 8G (NSE-8G) supports a variety of flexible Layer 1/Layer 2 architectures in combination with the following PMC-Sierra devices:
•  PM8610 SBS and PM8611 SBS-lite (SBI Serializer and Memory switching stage).
•  SBI bus devices (TEMUX™/TEMAP, FREEDM devices, S/UNI®-IMA devices, AAL1gator™ devices and other future devices).
•  CHESS™ chip set devices (PM5374 TSE, PM5307 TBS, PM5315 SPECTRA™-2488, and PM7390 S/UNI®-MACH48).
These architectures include:
•  T1/E1 SONET ADMs.
•  TDM ASAP applications.
•  PHY cards with DS0 (and above) level switching.
•  PSTN replacement switching cores, as part of any-service-any-port applications, and
•  Voice Gateways.


other parts : PM8621-BIAP  
PM8621 PDF
PMC-Sierra
PMC-Sierra
PM8610 SBI Bus Serializer (SBS)

Description
The PM8610 SBI336 Bus Serializer (SBS) is a monolithic integrated circuit that implements conversion between a byte-serial 19.44 MHz SBI bus or 77.76 MHz SBI336 bus and a redundant
777.6 Mbit/s bit-serial 8B/10B-base SBI336S bus.
In TelecomBus mode, the SBS implements conversion between any 19.44 MHz TelecomBus or
77.76 MHz TelecomBus format and a redundant 777.6 Mbit/s bit-serial 8B/10B-base serial
TelecomBus format. In line with the bus conversion is a DS0 granular switch allowing any input
DS0 to be output on any output DS0. The redundant 777.6 Mbit/s serial interfaces can be disabled
and a byte-wide SBI336 bus can be enabled in its place with all the DS0 level switching
capabilities.

 


other parts : PM8610-BIAP  
PM8610 PDF
PMC-Sierra
PMC-Sierra
PM8311 High Density T1/E1 Framer, VT/TU Mapper & M13 Mux with Integrated SONET/SDH Framers

PRODUCT OVERVIEW
The PM8311 TEMUX 168 is a single device integrating 2xOC-3/STM-1 SONET/SDH framers for working and protect links, 168/126 T1/E1 framers, 6 DS3/E3 framers, 6 M13/G.747 multiplexers and 6 VT/TU mappers.

PRODUCT HIGHLIGHTS
• 4 OC-3/STM-1 SONET/SDH framers
• 168 T1/126 E1 framers
• 6 M13 multiplexers, including support for G.747 multiplexing
• 6 DS3/E3 framers
• High order path processor for a SONET STS-3 or an SDH STM-1
• Tributary path processor for 168 VT1.5/TU-11s or 126 VT2/TU-12s
• Byte synchronous and bit asynchronous mapper for 168 VT1.5/TU-11s or 126 VT2/TU-12s
• Tributary path processor for 6 TU-3s
• Mapper for 6 DS3s or 6 E3s (TU-3 and AU-3)

INTERFACES
• Up to 4 SONET/SDH network interfaces
• SONET/SDH Transport and Path overhead interface
• Two 622-Mbit/s Extended Serial SONET/SDH Interfaces (ESSIs)
• Line-side serial interface for up to 6 DS3s or E3s
• System-side Scalable Bandwidth Interconnect (SBI) bus for high density interconnection of up to 168 T1 streams, 126 E1 streams, 6 DS3 streams, 6 E3 streams, or 6 arbitrary rate streams
• System-side serial interface for up to 6 DS3s or E3s
• Flexible bandwidth interface for up to 6 arbitrary rate ports
• 32 Mbit/s Synchronous TDM Interface (based on H-MVIP)
• Microprocessor- and IEEE 1149.1-compliant JTAG interface

PACKAGE
• 896-pin FCBGA (31 x 31 mm)
• Supports industrial temperature range (-40 ºC to 85 °C)

APPLICATIONS
• ATCA/AMC-based line cards
• Voice and media gateways
• Wireless base station controllers (BSC) and radio network controllers (RNC)
• Routers and multi-service switches
• Edge aggregation switches
• Multi-service provisioning platforms

 


other parts : PM8311TEMUX168  
PM8311 PDF
PMC-Sierra
PMC-Sierra
PM8380 4-Channel Multiplexer and Link Extender for SAS, SATA, Ethernet and FC

FEATURES
GENERAL - SATA AND SAS
• Four bi-directional 2:1 SATA or SAS multiplexer/demultiplexer.
• Compliant with SAS Internal and External specification.
• SATA Gen1i, Gen1x, Gen2i, Gen2x compliant.
• In the downstream direction, the QuadSMX 3G demuxes the initiator-side receive ports to either the A or B device-side transmit ports.
• In the upstream direction, the QuadSMX 3G selects either the A or B device-side receive port to output on the initiator-side transmit ports.
• Passes-thru out-of-band (OOB) signaling.
• Internal OOB detectors for COMSAS, COMRESET/COMINIT and COMWAKE.
• Provides port reordering to support standard SATA/SAS 4 channel connectors and easier PCB routing.

GENERAL - ETHERNET AND FIBRE CHANNEL
• Four channel bi-directional Gigabit Ethernet and 10 Gigabit Ethernet (XAUI) link extender and 2:1 serial multiplexer/demultiplexer.
• Four channel bi-directional 1G,2G and 10G Fibre Channel link extender and 2:1 serial multiplexer/demultiplexer
• Provides transmit redundancy for Ethernet and Fibre Channel Switch Applications. In this case,data is broadcast to both Port A and Port B.

HIGH-SPEED I/O
• 1.0 Gbit/s to 3.2 Gbit/s operation.
• Automatic amplitude control for SATA and SAS applications.
• Programmable receive equalization, transmit preemphasis and transmit output swing.
• Integrated resistive termination and receive AC coupling.
• Analog interfaces support SATA and SAS hot plug.

APPLICATIONS
• Host Bus Adapter.
• RAID controller.
• Ethernet (1GE and 10 GE XAUI) and Fibre Channel (1,2 and 10 GFC) link extender.
• Ethernet (1GE and 10 GE XAUI) and Fibre Channel (1,2 and 10 GFC) mux/demux.
• PCI Express, PCI Advanced Switching, ATCA, serial RapidIO, Infiniband, and HDTV link extender and mux/demux.

PM8380 PDF
PMC-Sierra
PMC-Sierra
PM8316 High Density 84-Channel T1/E1/J1 Framer with Integrated VT/TU Mappers and M13

FEATURES
The PM8316 TEMUX-84 is a 155 Mbit/s multi-channel T1/E1 Framer with integrated VT/TU Mappers and M13 Multiplexers.
• This monolithic device integrates:
   • 84 T1 framers
   • 63 E1 framers
   • Three SONET/SDH VT1.5/VT2/TU11/TU12 bit asynchronous or byte synchronous mappers
   • Three full featured M13 multiplexers with DS3 framers
   • Three SONET/SDH DS3 mappers for terminating DS3 multiplexed T1 streams, SONET/SDH mapped T1 streams or SONET/SDH mapped E1 streams
• Each SPE/STS-1 can be independently programmed for various T1, E1 or DS3 modes of operation.
• Supports wide range of T1, E1 and J1 framing formats.
• Supports M23 and C-bit parity DS3 formats.
• Stand-alone unchannelized E3 framer mode (ITU-T Rec. G.751 or G.832) for access to the entire E3 payload.
• Flexible line side and system side interface support :
   • Provides a 19.44 or 77.76 MHz SONET/SDH Add/Drop Telecom bus interface for seamless connection with PMC’s SONET/SDH devices.
   • Supports a byte serial Scaleable Bandwidth Interconnect (SBI™) bus interface at either 19.44 MHz or 77.76 MHz for high density system side device interconnection to PMC’s link layer products.
   • Supports 8 Mbit/s H-MVIP on the system interface for all T1 or E1 links, a separate 8 Mbit/s H-MVIP system interface for all T1 or E1 CAS channels and a separate 8 Mbit/s H-MVIP system interface for all T1 or E1 CCS and V5.1/V5.2 channels.
   • Support for transparent virtual tributaries when SBI interface is used with SONET/SDH mapper.
   • Supports insertion and extraction of arbitrary rate (eg. fractional DS3) data streams to/from the SBI bus interface.
• Provides jitter attenuation in the T1/E1 tributary receive and transmit directions.
• Provides three independent de-jittered T1 or E1 recovered clocks for system timing and redundancy.
• Provides per link diagnostic and line loopbacks.
• Provides PRBS generators and detectors at DS3 and E3 rates and on each tributary for error testing at T1, E1 and NxDS0 rates as recommended in ITU-T O.151, 0.152.
• Feature-rich functional software drivers available with device.
• Provides a generic 8-bit microprocessor bus interface for configuration, control and status monitoring.
• Provides a standard 5 signal P1149.1 JTAG test port for boundary scan board test purposes.

APPLICATIONS
• High density T1/E1 interfaces for multiplexers, multi-service switches, routers and digital modems.
• Channelized and Unchannelized DS3 Frame Relay Interfaces.
• Optical Access Equipment
• SONET/SDH Add Drop and Terminal Multiplexers.
• M13 Multiplexer/Demultiplexer Equipment.
• Digital Access Cross-Connect Systems

PM8316 PDF
PMC-Sierra
PMC-Sierra
PM8310 High Density T1/E1 Framer, VT/TU Mapper & M13 Mux with Integrated SONET/SDH Framers

PRODUCT OVERVIEW
The PM8310 TEMUX 336 is a high density T1/E1, DS3/E3 framer, VT/TU mapper, and M13 multiplexer with integrated SONET/SDH framers for OC-12/STM-4 and 4xOC-3/STM-1 applications. Feature integration and scalability make the TEMUX 336 ideal for use in ATCA/AMC line cards, voice and media gateways, routers, and multi-service and edge aggre gation switches.

PRODUCT HIGHLIGHTS
• 8 OC-3/STM-1 or 2 OC-12/STM-4 SONET/SDH framers
• 336 T1/252 E1 framers
• 12 M13 multiplexers, including support for G.747 multiplexing
• 12 DS3/E3 framers
• High order path processor for a SONET STS-12 or an SDH STM-4
• Tributary path processor for 336 VT1.5/TU-11s or 252 VT2/TU-12s
• Byte-synchronous and bit-asynchronous mapper for 336 VT1.5/TU-11s or 252 VT2/TU-12s
• Tributary path processor for 12 TU-3s
• Mapper for 12 DS3s or 12 E3s (TU-3 and AU-3)

APPLICATIONS
• ATCA/AMC-based line cards
• Voice and media gateways
• Wireless base station controllers (BSC) and radio network controllers (RNC)
• Routers and multi-service switches
• Edge aggregation switches
• Multi-service provisioning platforms


other parts : PM8310TEMUX336  
PM8310 PDF
PMC-Sierra
PMC-Sierra
PM8372 4-Port FC/GE Retimer and FC-AL Port Bypass Controller

GENERAL
• Supports 4 Fibre Channel Physical Interfaces at 1.0625 or 2.125 Gbit/s per Fibre Channel – Physical Interface (FC-PI) or 4 Gigabit Ethernet Retimers at 1.25 Gbit/s per IEEE 802.3z.
• Each port supports FC 1G or 2G rate detection/auto-selection.
• Supports Arbitrated Loop and Retimer configuration.
• Each port is independently selectable to perform retimer, reclocker or bypass-path function.
• Non-blocking crossconnect supports protection switching, broadcasting and multicasting.
• Automatic selection of retimer, reclocker or bypass-path function to minimize latency and jitter when a disk is bypassed.
• Per-port receive monitoring for loss of signal, error rate, and link level violations.
• Supports single-ended or differential 106.25 MHz reference clock REFCLK for Fibre Channel applications or 125 Mhz reference clock for Gigabit Ethernet applications.

HIGH-SPEED INTERFACE
• High-speed outputs with selectable preemphasis per port to counteract dielectric losses and allow maximum reach on printed circuit boards.
• Selectable receive input equalization for improved signal integrity.
• Minimized board footprint and improved signal integrity achieved because:
   • No external components are required to interface the high-speed signals to optics, coax, or serial backplanes using the internal AC coupling capacitors and terminating resistors.
   • Receive input termination of 100 Ω or 150 Ω differential is selectable.
   • Source output impedance of 100 Ω or 150 Ω differential is programmable.
  
APPLICATIONS
• FC-AL Nodes.
• RAID Storage Systems.
• JBOD Storage Systems.
• MBOD Storage Systems.
• SBOD Storage Systems.
• Fibre Channel Hubs.
• 1.0625/2.125 Gbit/s Backplanes.
• Gigabit Ethernet Retimer.

 

PM8372 PDF
PMC-Sierra
PMC-Sierra
PM8611 SBSLITE™ Telecom Standard Product Data Sheet Preliminary

Features
• The PM8611 SBI336 Bus Serializer (SBSLITE™) is a:
   ° Scalable Bandwidth Interconnect (SBI™) converter and Time Division Multiplexer (TDM) SBI switch.
   ° Byte-wide 77.76 MHz SBI336 bus to 777.6 MHz serial SBI336S converter.
   ° DS0, NxDS0, T1, E1, TVT1.5, TVT2, DS3 and E3 granular SBI336 to serial SBI336S switch. Supports subrate link switching with the restriction that subrate links must be symmetric in both the transmit and receive directions.
   ° Byte-wide 77.76 MHz TelecomBus to serial 777.6 MHz TelecomBus converter. This requires the TelecomBus J1 byte to be in a fixed location corresponding to a value of 0 or 522 which is immediately following the C1 octets:
   ° VT1.5, VT2, STS-1 77.76 MHz TelecomBus to serial TelecomBus switch.
• Can be used with the Narrowband Switch Elements, NSE-20G, to implement a DS0 granularity SBI Memory:Space:Memory switch scalable to 20 Gbit/s and NSE-8G, to implement a switch scalable to 8 Gbit/s. In TelecomBus mode, a 20 Gbit/s VT1.5/VT2 granularity Memory:Space:Memory switch can be implemented.
• Integrates two independent DS0 granularity Memory Switches. One switch is placed between the incoming 77.76 MHz byte-wide SBI336 bus and the transmit working and protect Serial SBI336S link. The transmit working and protect links transmit the same data. The other switch is placed between the receive working or protect Serial SBI336S link and the outgoing 77.76 MHz byte-wide SBI336 bus.
• Provides 125 µS nominal latency in DS0 mode. Channel Associated Signaling (CAS) latency through the SBSLITE in DS0 mode is two T1 multiframe (6 mS) or two E1 multiframe (4 mS).
• Provides less than 16 µS nominal latency in TelecomBus mode or SBI mode without DS0 level switching.
• Permits any receive or incoming byte from an input port to be mapped to any outgoing or transmit byte, respectively, on the associated output port through the Memory switch.
• Supports redundant working and protect serial SBI336S links in support of a redundant Memory:Space:Memory switch with the NSE.
• Encodes and decodes byte-wide SBI336 bus control signals for all SBI supported link types and clock modes for transport over the serial SBI336S interface.
• Encodes data from the Incoming SBI336 bus or TelecomBus stream to a working and protect 777.6 Mbit/s LVDS serial links with 8B/10B-based encoding.
• Decodes data from a working and protect 777.6 MHz low voltage differential serializer (LVDS) serial links with 8B/10B-based encoding to the Outgoing SBI336 bus or TelecomBus stream.
• In SBI mode, switches CAS bits with all DS0 data.
• Uses 8B/10B-based line coding protocol on the serial links to provide transition density guarantee and DC balance and to offer a greater control character vocabulary than the standard 8B/10B protocol.
• Provides optional pseudo-random bit sequence (PRBS) generation for each outgoing LVDS serial data link for off-line link verification. PRBS can be inserted with STS-1 granularity.
• Provides PRBS detection for each incoming LVDS serial link for off-line link verification. PRBS is verified with STS-1 granularity.
• Provides pins to coordinate updating of the connection map of the memory switch blocks in the local device, peer SBSLITE devices and companion NSE switch device.
• Can communicate with the NSE switch device over an in-band communications channel in the LVDS links. This channel includes mechanisms for central control and configuration.
• Derives all internal timing from a single 77.76 MHz system clock to a system frame pulse.
• Implemented in 1.8 V/3.3 V 0.18 µm CMOS and packaged in a 160 ball 15 mm x 15 mm PBGA.
• Consumes low power at 1.4 W.

Applications
• T1/E1 SONET/SDH Cross-connects
• T1/E1 SONET/SDH Add-Drop Multiplexers
• OC-48 Multiservice Access Multiplexers
• Channelized OC-12/OC-48 Any Service Any Port Switches
• Serial Backplane Board Interconnect
• Shelf to Shelf Cabled Serial Interconnect
• Voice Gateways

 


other parts : PM8611-BIAP  
PM8611 PDF

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