Crossbar Switch

Product Specifications

Technical details and manufacturing context for Crossbar Switch

Definition

A crossbar switch is a fundamental component within an interconnect router that enables simultaneous, non-blocking connections between multiple input and output ports. It functions as a matrix switch where any input can be connected to any output without interfering with other connections, facilitating high-speed data routing and switching in networking and computing systems. The switch fabric is typically implemented in silicon, with copper interconnects and plastic packaging, and is available in a range of configurations. The number of ports typically ranges from 8 to 64, with data rates per port from 1 to 400 Gbps, and total switching capacity from 16 to 5120 Gbps. Insertion loss is specified at ≤1.5 dB, and crosstalk at ≤ -30 dB, both per IEC 61300-3-4. Switching time ranges from 10 to 100 ns. Operating temperature is -40 to 85 °C per IEC 60068-2-1/2. Supply voltage is 3.3 to 12 V DC, power consumption 5 to 150 W, and package types include BGA, QFN, and LGA per JEDEC MS-028. Weight ranges from 5 to 50 g. These values are directory reference ranges and must be confirmed for the specific model and application. The crossbar switch is a component, not a complete system, and its performance depends on the surrounding circuitry and signal integrity. For procurement, verify model-specific parameters and standards with the legal manufacturer or supplier.

Working Principle

The crossbar switch operates using a matrix of switching elements at each intersection of input and output lines. When a connection is required between a specific input and output, the corresponding switching element at that intersection is activated, creating a dedicated path. This allows multiple connections to occur simultaneously without contention, as each input-output pair has its own independent switching point. The switching elements are controlled by a routing logic that determines which paths to establish based on the incoming data packets. The matrix architecture ensures non-blocking behavior, meaning that any idle input can be connected to any idle output without disturbing existing connections. This principle enables high-speed data routing with minimal latency and predictable performance.

Common Materials

Silicon, Copper, Plastic

Technical Parameters

Parameter	Typical range	Notes & selection driver
Number of Ports	8–64 ports	Determines the scale of the switching matrix.
Data Rate per Port	1–400 Gbps	Higher rates require better signal integrity.IEEE 802.3
Switching Capacity	16–5120 Gbps	Total throughput of the switch fabric.
Insertion Loss	≤1.5 dB	Lower loss improves signal quality.IEC 61300-3-4
Crosstalk	≤ -30 dB	Isolation between channels.IEC 61300-3-4
Switching Time	10–100 ns	Time to route a packet.
Operating Temperature	-40–85 °C	Outside this range, performance degrades.IEC 60068-2-1/2
Supply Voltage	3.3–12 V DC	Logic and I/O levels.
Power Consumption	5–150 W	Affects cooling requirements.
Package Type	BGA, QFN, LGA	Determines PCB footprint and thermal performance.JEDEC MS-028
Weight	5–50 g	Relevant for board mounting and vibration.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Switching Matrix
Core matrix of switching elements that connect inputs to outputs

Material: Silicon
Control Logic
Manages switching decisions and connection establishment

Material: Silicon
Input/Output Buffers Part
Temporarily stores data during switching operations

Material: Silicon

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Crossbar Switch.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Interconnect Router

View system integration details

Manufacturers of Crossbar Switch

Manufacturer profiles associated with Crossbar Switch.

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Frequently Asked Questions

What is the typical number of ports for a crossbar switch?

The directory reference range is 8 to 64 ports. The actual number depends on the specific model and application. Always confirm with the manufacturer.

What data rates does a crossbar switch support?

Data rates per port range from 1 to 400 Gbps, with total switching capacity from 16 to 5120 Gbps. These are reference values; verify for the specific model.

What standards apply to crossbar switch performance?

Insertion loss and crosstalk are referenced to IEC 61300-3-4, operating temperature to IEC 60068-2-1/2, and package types to JEDEC MS-028. These are verification references, not certifications.

How does a crossbar switch achieve non-blocking operation?

It uses a matrix of switching elements at each input-output intersection. Each connection has a dedicated path, so multiple connections can be made simultaneously without interference.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 100 psi
other spec:	Signal frequency: DC to 10 GHz, Insertion loss: < 0.5 dB
temperature:	-40°C to +85°C

Product Specifications

Industry Taxonomies & Aliases

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