800-219-9001 RFQ
KSZ8721BL — TQFP/LQFP-32/44 package (representative)
TQFP/LQFP-32/44
Representative of package type
MCHIP

KSZ8721BL

Ethernet PHY Transceiver · LQFP-48 · Interface
Part Status: Active In demand
Data last refreshed Jun 19, 2026
Manufacturer
MCHIP
Mfr Part #
KSZ8721BL
Series
KSZ8721
Category
Ethernet PHY Transceiver
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Price$2.88
Last transacted2005-12-22
Market range$2.88
Sourcing channels22
Request a Quote → Check Live Availability

Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Data Rate10/100 Mbps
Supply Voltage3.3V
Physical & Thermal
Package / CaseLQFP-48
Mounting TypeSurface Mount
SeriesKSZ8721
Operating Temperature0°C ~ 70°C
Classification & Lifecycle
CategoryEthernet PHY Transceiver
TypeInterface
Part StatusActive

10/100BASE-TX/FX Physical Layer Transceiver, MII/RMII

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Availability & Sourcing

22 sources
SourceMfrQtyDate CodeConditionStatus
Live MCHIP 3350 — — Live RFQ
Live Micrel 8527 — — Live RFQ
Live MICROCHIP 7816 — — Live RFQ
Live MICROCHIP 4196 NEW — Live RFQ
Live — 4125 — — Live RFQ
Live MICROCHIP 2577 — — Live RFQ
Live MICROCHIP 3275 10+ — Live RFQ
Live Microchip 1498500 22+23+ — Live RFQ
Live Micrel(??) 100000 25+ — Live RFQ
Live MICROCHIP 60000 23+ — Live RFQ
Live MICROCHIP 50000 22+ — Live RFQ
Market MCHIP 3350 — — Available RFQ
Market Micrel 8527 — — Available RFQ
Market MICROCHIP 7816 — — Available RFQ
Market MICROCHIP 4196 NEW — Available RFQ
Market MCHIP 4125 — — Available RFQ
Market MICROCHIP 2577 — — Available RFQ
Market MICROCHIP 3275 10+ — Available RFQ
Market Microchip 1498500 22+23+ — Available RFQ
Market Micrel(??) 100000 25+ — Available RFQ
Market MICROCHIP 60000 23+ — Available RFQ
Market MICROCHIP 50000 22+ — Available RFQ

ZDI Stock — in our warehouse · Market — offers available through our sourcing network · Live — recent offers from our sourcing network.

Price History & Market Reference

Market Price Range

High$2.88
Low$2.88
Last$2.88
Price as of2005-12-22

ZDI Transaction

Last ZDI price$2.88
As of2005-12-22
Active offers22

Pricing reflects ZDI's transaction and market-reference data. Firm pricing confirmed per RFQ against current availability.

Part Activity

recent searches, RFQs & offers
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KSZ8721BL viewed on the web · Web User
KSZ8721BL viewed on the web · Web User
KSZ8721BL viewed on the web · Web User
KSZ8721BL viewed on the web · Web User
KSZ8721BL viewed on the web · Web User
KSZ8721BL viewed on the web · Web User
KSZ8721BL viewed on the web · Web User

Recent search and sourcing activity for KSZ8721BL.

Engineering FAQ

What are the key specifications of KSZ8721BL?
Data Rate: 10/100 Mbps; Supply Voltage: 3.3V.
What package is KSZ8721BL supplied in?
KSZ8721BL is supplied in the LQFP-48 package, surface mount, rated 0°C ~ 70°C.
Can ZDI source KSZ8721BL beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

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