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Telecommunication Circuits / Network Interfaces / KSZ8721BL
Datasheets
KSZ8721BL by:

DATACOM, ETHERNET TRANSCEIVER, PQFP48

Part Details for KSZ8721BL by Microchip Technology Inc

Results Overview of KSZ8721BL by Microchip Technology Inc

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

KSZ8721BL Information

KSZ8721BL by Microchip Technology Inc is a Network Interface.
Network Interfaces are under the broader part category of Telecommunication Circuits.

A telecommunications circuit transmits and receives information between points. Key components include transmitters, receivers, amplifiers, and multiplexers. Read more about Telecommunication Circuits on our Telecommunication Circuits part category page.

Price & Stock for KSZ8721BL

Part # Distributor Description Stock Price Buy
DISTI # 10AC7934
Newark Transceiver, Physical Layer, 3.3V, Data Rate:100Mbps, Ethernet Type:Ieee 802.3U, Supply Voltage Min:3.3V, Supply Voltage Max:4V, Controller Ic Case Style:Lqfp, No. Of Pins:48Pins, Ic Interface Type:Mii, Rmii, Operating Temperature Rohs Compliant: Yes |Microchip KSZ8721BL RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk 7005
  • 1 $4.9000
  • 10 $4.8000
  • 25 $4.3000
  • 50 $4.2700
  • 100 $4.2500
  • 250 $4.2400
$4.2400 / $4.9000 Buy Now
DISTI # KSZ8721BL
Avnet Americas PHY 1-CH 100Mbps 48-Pin LQFP Tray - Trays (Alt: KSZ8721BL) RoHS: Compliant Min Qty: 250 Package Multiple: 250 Lead time: 4 Weeks, 0 Days Container: Tray 0
  • 250 $4.4635
  • 500 $4.3655
  • 1,000 $4.2674
  • 1,500 $4.1693
  • 2,000 $4.0712
$4.0712 / $4.4635 Buy Now
DISTI # KSZ8721BL
Microchip Technology Inc 10/100 BASE-TX/FX Physical Layer Transceiver, LQFP, Projected EOL: 2034-01-06 RoHS: Compliant Lead time: 5 Weeks, 0 Days Container: Tray 80250

COO: Malaysia, Taiwan
  • 1 $5.0700
  • 25 $4.2300
  • 100 $3.8400
  • 1,000 $3.5500
  • 5,000 $3.3700
$3.3700 / $5.0700 Buy Now
DISTI # KSZ8721BL
TME IC: transceiver, 10/100Base-T, MDC,MDI,MDI-X,MDIO,MII,RMII Min Qty: 1 12
  • 1 $5.4000
  • 5 $5.2600
  • 25 $4.4100
  • 100 $4.2700
$4.2700 / $5.4000 Buy Now
DISTI # KSZ8721BL
IBS Electronics KSZ8721 Tray MII RMII Ethernet interface driver 3.3V 151mA 1.6mm 100Mbps Min Qty: 1000 Package Multiple: 1 0
  • 1,000 $6.8170
$6.8170 Buy Now
NAC 10/100 BASE-TX/FX Physical Layer Transceiver - Package: 48 LQFP 7x7x1.4mm TRAY RoHS: Compliant Min Qty: 1 Package Multiple: 250 Container: Tray 70500
  • 1 $4.8100
  • 100 $4.3600
  • 500 $4.0900
  • 1,000 $3.9900
$3.9900 / $4.8100 Buy Now
DISTI # KSZ8721BL
Avnet Silica PHY 1-CH 100Mbps 48-Pin LQFP Tray (Alt: KSZ8721BL) RoHS: Compliant Min Qty: 250 Package Multiple: 250 Lead time: 6 Weeks, 0 Days Silica - 0
Buy Now
DISTI # KSZ8721BL
EBV Elektronik PHY 1-CH 100Mbps 48-Pin LQFP Tray (Alt: KSZ8721BL) RoHS: Compliant Min Qty: 250 Package Multiple: 250 Lead time: 5 Weeks, 0 Days EBV - 0
Buy Now
Win Source Electronics IC TXRX PHY 10/100 3.3V 48-LQFP 19600
  • 10 $5.3668
  • 23 $4.4035
  • 36 $4.2659
  • 49 $4.1283
  • 63 $3.9907
  • 84 $3.5779
$3.5779 / $5.3668 Buy Now

Part Details for KSZ8721BL

KSZ8721BL CAD Models

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KSZ8721BL Part Data Attributes

Parametric Data
KSZ8721BL Microchip Technology Inc
Buy Now Datasheet
Compare Parts:
KSZ8721BL Microchip Technology Inc DATACOM, ETHERNET TRANSCEIVER, PQFP48
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer MICROCHIP TECHNOLOGY INC
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 4 Weeks
Samacsys Manufacturer Microchip
Data Rate 100000 Mbps
JESD-30 Code S-PQFP-G48
JESD-609 Code e3
Length 7 mm
Moisture Sensitivity Level 3
Number of Functions 1
Number of Terminals 48
Number of Transceivers 1
Operating Temperature-Max 70 °C
Operating Temperature-Min
Package Body Material PLASTIC/EPOXY
Package Code LFQFP
Package Equivalence Code QFP48,.35SQ,20
Package Shape SQUARE
Package Style FLATPACK, LOW PROFILE, FINE PITCH
Qualification Status Not Qualified
Seated Height-Max 1.6 mm
Supply Voltage-Nom 2.5 V
Surface Mount YES
Technology CMOS
Telecom IC Type ETHERNET TRANSCEIVER
Temperature Grade COMMERCIAL
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Pitch 0.5 mm
Terminal Position QUAD
Width 7 mm

Alternate Parts for KSZ8721BL

This table gives cross-reference parts and alternative options found for KSZ8721BL. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of KSZ8721BL, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
KSZ8721BLI Microchip Technology Inc $4.9284 DATACOM, ETHERNET TRANSCEIVER, PQFP48 KSZ8721BL vs KSZ8721BLI
KSZ8721BL-TR Microchip Technology Inc $3.8883 DATACOM, ETHERNET TRANSCEIVER, PQFP48 KSZ8721BL vs KSZ8721BL-TR
KSZ8721BLI-TR Microchip Technology Inc $4.9073 DATACOM, ETHERNET TRANSCEIVER, PQFP48 KSZ8721BL vs KSZ8721BLI-TR
KSZ8041TLI-TR Microchip Technology Inc $3.6712 DATACOM, ETHERNET TRANSCEIVER, PQFP48 KSZ8721BL vs KSZ8041TLI-TR
BCM5221A4KPTG Broadcom Limited Check for Price Ethernet Transceiver, PQFP64, TQFP-64 KSZ8721BL vs BCM5221A4KPTG
KSZ8721BI Microchip Technology Inc $3.9230 DATACOM, ETHERNET TRANSCEIVER, PDSO48 KSZ8721BL vs KSZ8721BI
KSZ8041FTLI-TR Microchip Technology Inc $3.2150 DATACOM, ETHERNET TRANSCEIVER, PQFP48 KSZ8721BL vs KSZ8041FTLI-TR
KSZ8721SL Microchip Technology Inc $4.3715 DATACOM, ETHERNET TRANSCEIVER, PDSO48 KSZ8721BL vs KSZ8721SL
KSZ8001LI Microchip Technology Inc $4.4020 DATACOM, ETHERNET TRANSCEIVER, PQFP48 KSZ8721BL vs KSZ8001LI
KSZ8041NL-TR Microchip Technology Inc $1.5307 DATACOM, ETHERNET TRANSCEIVER, QCC32 KSZ8721BL vs KSZ8041NL-TR

KSZ8721BL Related Parts

KSZ8721BL Frequently Asked Questions (FAQ)

  • The recommended PCB layout for the KSZ8721BL involves placing the device near the RJ-45 connector, using a solid ground plane, and keeping the analog and digital signal traces separate. A 4-layer PCB is recommended, with the top layer for signals, the second layer for the power plane, the third layer for the ground plane, and the bottom layer for signals.

  • To ensure reliable operation of the KSZ8721BL in high-temperature environments, it is recommended to follow proper thermal design guidelines, such as providing adequate heat sinking, using a thermally conductive PCB material, and ensuring good airflow around the device. Additionally, the device should be operated within its specified temperature range of -40°C to 85°C.

  • The KSZ8721BL is designed to meet the EMI and RFI requirements of the IEEE 802.3 standard. To minimize EMI and RFI, it is recommended to use a shielded RJ-45 connector, keep the PCB layout compact, and use a common-mode choke on the magnetics. Additionally, the device should be placed in a metal enclosure to reduce radiation.

  • To troubleshoot issues with the KSZ8721BL, it is recommended to follow a systematic approach, starting with checking the power supply, clock, and reset signals. Then, verify the device configuration and register settings. Use a logic analyzer or oscilloscope to capture and analyze the signal waveforms. Finally, consult the datasheet and application notes for troubleshooting guidelines and FAQs.

  • The KSZ8721BL requires a specific power sequencing to ensure proper operation. The recommended power-up sequence is: VCC, then VCCIO, then the clock signal. The power-down sequence should be reversed. It is also recommended to use a power-on reset (POR) circuit to ensure a clean reset signal.

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