Manufacturer: Aitech

Aitech’s M640 is a high-performance XMC Unmanaged Gigabit Ethernet Switch for embedded and harsh environment applications.

Gigabit Ethernet switching is performed by the Marvell Prestera® 98DX106. The switch is unmanaged and does not require any user configuration.

The M640 provides up to ten Ethernet ports, each of which is factory configured as 1000Base-T or 1000Base-BX/KX.

1000Base-BX/KX ports support both backplane applications and external SFP modules. 1000Base-T ports support 10/100/1000 Mbps operation and are implemented with Marvell 88E1340 PHY devices and onboard magnetics modules


FunctionUnmanaged, no user configuration required
Full wire-speed non-blocking forwarding
Jumbo Frame support (up to 9 kB)
1 Mbit on-chip buffer memory
8k entries forwarding database
Base-T auto-negotiation and auto cross-over (MDI/MDI-X)
Full and half-duplex operation
Port Status Indicator LEDs
Interface(s)Up to 10 Ports
Configuration varies - refer to the matrix in the datasheet for exact details
Controller(s)Marvell Prestera® 98DX106 Ethernet switch device


ExpansionSingle-Width XMC per ANSI/VITA 42.0
ElectricalM640 is powered by a single XMC site power supply (+3.3 V or Universal VPWR) per factory configuration option specified when ordering the M640
Power consumption of the M640 is 6W
MechanicalThe air-cooled and conduction-cooled variants of the M620 are compliant with the mechanical and dimensional requirements of ANSI/VITA 42.0-2008, enabling them to be used in conjunction with IEEE 1101.1 (air-cooled) and IEEE 1101.2 (conduction cooled) compliant carrier boards with XMC connectors.
Conformal CoatingOn request
TemperatureAir-Cooled Commercial
• Temperature range (operation): 0 to +55C
• Temperature range (storage): -40 to +85C

Air-Cooled Rugged
• Temperature range (operation): -40 to +71C
• Temperature range (storage): -50 to +100C

Air-Cooled Military
• Temperature range (operation): -40 to +85C
• Temperature range (storage): -62 to +125C

Conduction-Cooled Rugged
• Temperature range (operation): -40 to +70C
• Temperature range (storage): -50 to +100C

Conduction-Cooled Military
• Temperature range (operation): -40 to +85C
• Temperature range (storage): -55 to +125C
HumiditySeries-100 Commercial: 0-90%
Series-200 Rugged, Series-400 Military: 0-95% or 0 to 100% with coating
WeightAir-cooled: < 250 g (0.55 lbs)
Conduction-cooled: < 200 g (0.44 lbs)
AltitudeRefer to datasheet
VibrationRefer to datasheet
ShockRefer to datasheet
Warranty1 Year



BoardRefer to datasheet for ordering part number scheme
Recab UK
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