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Microchip Technology KSZ8893MBLI — Sensors & Transducers

KSZ8893MBLI Ethernet Switch – Microchip, 3-Port, 100-LFBGA

MPNKSZ8893MBLI
End of Life

Microchip Technology KSZ8893MBLI, 3-port Ethernet switch, 10/100 Base-FX/T/TX, I²C/SPI management, 3.1V–3.5V supply, 120 mA, -40°C to 85°C, 100-LFBGA tray

$14.52Ref. price · indicative, final on quote
Microchip Technology KSZ8893MBLI datasheet (PDF)
Packaging100-LFBGA
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

KSZ8893MBLI specifications
ParameterValue
Voltage3.1V ~ 3.5V
Current - supply120mA
ProtocolEthernet
InterfaceI²C, SPI
Operating temperature-40°C ~ 85°C
Standards10/100 Base-FX/T/TX
PackageTray
FunctionSwitch
Case100-LFBGA

Product details

Three-port Ethernet switch with fiber support

The KSZ8893MBLI is a 3-port managed Ethernet switch from Microchip that integrates three 10/100 Base-T/TX copper transceivers and one 10/100 Base-FX fiber interface. The management interface is I²C or SPI, selectable at reset, which keeps the host processor pin count low. Supply range is 3.1V to 3.5V, drawing 120 mA typical — about 400 mW on the 3.3V rail.

Package and supply rail planning

The 3.3V rail must supply 120 mA to the switch core plus any external magnetics and termination resistors. A local LDO or switching regulator with 3.3V output and at least 200 mA capability covers the switch plus margin.

No end-of-life notification or last-time-buy window has been issued. ROHS3 compliant. The 100-LFBGA package is not a common drop-in for other vendors' 3-port switches, so a layout change would be required for an alternative.

Frequently asked questions

Does the KSZ8893MBLI support fiber optic connections?

Yes, one of the three ports can operate in 10/100 Base-FX mode for fiber connections. The other two ports are 10/100 Base-T/TX copper. This makes the switch suitable for mixed-media links where one segment runs over fiber for distance or noise immunity.

Is the KSZ8893MBLI compatible with 5V logic?

The supply voltage range is 3.1V to 3.5V. The I²C and SPI management pins are 3.3V-tolerant. If the host processor uses 5V logic, a level shifter is required on the management bus to avoid exceeding the absolute maximum ratings.

What is the closest alternative to the KSZ8893MBLI?

Microchip's own KSZ8893MQL is a similar 3-port switch but in a 128-pin PQFP package — not pin-compatible with the 100-LFBGA. The KSZ8893MBLI's BGA package is unique in this family; a layout change is needed to use any alternative.