KSZ8721B More Semiconductors - ICs by Microchip Technology

10/100Base-T/TX/FX Ethernet Transceiver

Status: Active
Series: KSZ8721
RoHS: Compliant
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Operating at 2.5 volts to meet low voltage and low power requirements, the KSZ8721 is a 10BaseT/100BaseTX/FX Physical Layer Transceiver, which provides an MII and RMII host interface to transmit and receive data.


It contains the 10BaseT Physical Medium Attachment (PMA), Physical Medium Dependent (PMD), and Physical Coding Sub-layer (PCS) functions. Moreover, the KSZ8721 has on-chip 10BaseT output filtering, which eliminates the need for external filters and allows a single set of line magnetics to be used to meet requirements for both 100BaseTX and 10BaseT.


The KSZ8721 can automatically configure itself for 100 or 10 Mbps and full or half duplex operation, using on-chip Auto-Negotiation algorithm. It is an ideal choice of physical layer transceiver for 100BaseTX/10BaseT an 100BaseFX applications.


Microchip's complimentary and confidential LANCheck® online design review service is available for customers who have selected our products for their application design-in. The LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

Where to Buy

Prices starting from US$2.47

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Features

Single chip 100BaseTX/100BaseFX/10BaseT physical layer solution
2.5V CMOS design, power consumption <200mW (excluding output driver current)
Fully compliant to IEEE 802.3u standard
Supports Media Independent Interface (MII) and Reduced MII (RMII)
Supports 10BaseT, 100BaseTX and 100BaseFX with Far_End_Fault Detection
Supports power down mode and power saving mode
Configurable through MII serial management ports or via external control pins
Supports auto-negotiation and manual selection for 10/100Mbps speed and full/half-duplex mode
On-chip built-in analog front end filtering for both 100BaseTX and 10BaseT
LED outputs for link, activity, full/half duplex, collision, and speed
Supports back to back, FX to TX for media converter applications
Supports MDI/MDI-X auto crossover
2.5V/3.3V tolerance on I/O
Commercial temperature range: 0°C to +70°C
Industrial temperature range: –40°C to +85°C
Available in 48-pin LQFP, SSOP and TQFP packages

Specifications

Pins | Packaging 48 | SSOP
Temp Range 0C to +70C
Packing Media Tube (30)

Resources





Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.0
Shipping Weight (kg) 1.366667
Lead Count 48
Package Type SSOP
Package Width or Size 15.8x7.6mm
Soldering Composition Matte Tin

Alternative Descriptions

10/100 BASE-TX/FX Physical Layer Transceiver | Microchip Technology
KSZ8721B Series 2.5 V 10/100 Base TX/FX Physical Layer Transceiver - SSOP-48 | Future Electronics
10/100 Base-Tx/Fx Physical Layer Transceiver 48 Ssop 15.8X7.6Mm Tube Rohs Compliant: Yes |Microchip KSZ8721B | Newark Electronics
PHY 1-CH 100Mbps 48-Pin SSOP Tube | Avnet America
TRANSCEIVER, PHYSICAL LAYER, 2.5V | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a KSZ8721B?

Additional datasheets, footprints and schematics for KSZ8721B are listed on our Part Details page. You can also find images and similar parts to KSZ8721B on this page.

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Distributor pricing and stock information is available for KSZ8721B on our Product Comparison page. Access via the 'View Pricing & Stock' button to view KSZ8721B price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does KSZ8721B fall under?

The KSZ8721B is listed under Semiconductors - ICs > More Semiconductors - ICs.

Can I view similar or alternative parts?

You can view similar parts to KSZ8721B when available in the More Semiconductors - ICs range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the KSZ8721B you can contact the distributor directly for product support, shipping queries etc.

Is the KSZ8721B RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for KSZ8721B have stock available?

Authorised distributors including Microchip Technology, Future Electronics, Newark Electronics, Avnet America and element14 have stock available or on a lead time for KSZ8721B.

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