Serial Standards, Oscilloscope Bandwidth and You

Quite often the question arises what oscilloscope bandwidth is required to probe a certain bus or serial interface, so in a moment of boredom I assembled the following table from various sources.

Serial Standard | Bit Rate | Minimum Bandwidth req'd (Decode) | Minimum Bandwidth req'd (Signal Integrity)
UART/USART/RS232/RS422|115kbps|<25MHz|<25MHz
I2C|3.2Mbps|<50MHz|<50MHz
FlexRay|10Mbps|70MHz|150MHz
MIL-STD 1553B|1Mbps|100MHz|250MHz
SPI|up to 100Mbps|150MHz|250MHz
Ethernet 100BT|125Mbps|300MHz|500MHz
Ethernet|250Mbps|600MHz|1GHz
Fibre Channel 50MB/s|531.25Mbps|700MHz|1.5GHz
USB2 Super-Speed |480Mbps|800MHz|2GHz
IEEE1394b Firewire 800|786.43Mbps|1.2GHz|2GHz
RapidIO LP-LVDS|1Gbps|1.5GHz|2.5GHz
Fibre Channel 1GFC|1.0625Gbps|1.5GHz|2.5GHz
DDR2-800 |800MTps|2GHz|3.5GHz
Ethernet 1000BT|1.25Gbps|2GHz|3.5GHz
IOF|1.24416Gbps|2GHz|3.5GHz
RapidIO LP-LVDS|1.25Gbps|2.2GHz|3.5GHz
RapidIO LP-LVDS|1.5Gbps|2.7GHz|4GHz
SATA (SATA150)|1.5Gbps|3GHz|4GHz
IEEE1394b Firewire 1600|1.5729Gbps|3GHz|4GHz
DVI|1.65Gbps|3GHz|4GHz
HDMI 1.2a|1.65Gbps|3.2GHz|4GHz
RapidIO LP-LVDS|2Gbps/2.5Gbps|4.2GHz|6GHz
PCI Express 1.x|2.5Gbps|4.2GHz|6GHz
DDR3-1600|1.6GTps|6.5GHz|8GHz
ExpressCard|2.5Gbps|6.5GHz|8GHz
InfiniBand|2.5Gbps|7GHz|8GHz
RapidIO LP-LVDS|3.125Gbps|7GHz|8GHz
DisplayPort 1.1|2.7Gbps|7GHz|8GHz
HyperTransport 2.0|2.8Gbps|7GHz|8GHz
SAS 1.0/1.1|3Gbps|7GHz|8GHz
SGMII|3.125Gbps|7GHz|8GHz
XAUI|3.125Gbps|7GHz|8GHz
Firewire|3.2Gbps|7GHz|8GHz
DDR4|4GTps|8GHz|10GHz
HDMI 1.3b|3.4Gbps|8GHz|10GHz
SATA2 (SATA300)|3Gbps||10GHz
Fibre Channel 4GFC|4.25Gbps||13GHz
Serial RapidIO|4.25Gbps/5Gbps||13GHz
InfiniBand|5Gbps||13GHz
PCI Express Gen2|5Gbps||13GHz
PCI Express Gen3|8Gbps||13GHz
HyperTransport 3.0|5.2Gbps||13GHz
USB 3.0 |5Gbps||13GHz
DisplayPort 1.2|5.4Gbps||16GHz
GDDR5|6Gbps||16GHz
SAS2|6Gbps||16GHz
SATA3 (SATA600)|6Gbps||16GHz
Serial RapidIO|6.25Gbps||16GHz
HyperTransport 3.1|6.4Gbps||16GHz
QPI|6.4Gbps||16GHz
10GBT|10.3125Gbps||20GHz
SFI/SFP+|10.3125Gbps||20GHz
CEI-11|11Gbps||25GHz
SAS3|12Gbps||25GHz
InfiniBand|25.78125Gbps||50GHz
CEI-25/28|25Gbps/28Gbps||60GHz

Please keep in mind that this list shows the bandwidth required to examine the signal integrity. Decoding often works with less bandwidth, although it may be unreliable/erroneous as with insufficient bandwidth the waveform on the screen will miss high frequency components which may cause distortion.

I'll try to update the table from time to time.
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