- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for KSZ8721BL
- Part Number KSZ8721BL
- Manufacturer Microchip
- Pin Count 48
- Part Category Integrated Circuit
- Package Category Quad Flat Packages
- Footprint Name Quad Flat Packages - 48 LEAD LQFP_1
- Released Date Feb 4, 2020
- Last Modified Date Mar 7, 2023 4:10 PM UTC
- Pinout / Pin List Click Here (Member Only)
KSZ8721BL Details
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Manufacturer Part Number:
KSZ8721BL
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Rohs Code:
Yes
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Part Life Cycle Code:
Active
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Pin Count:
48
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Manufacturer Package Code:
LQFP-48
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Country Of Origin:
Malaysia, Taiwan
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ECCN Code:
EAR99
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HTS Code:
8542.39.00.01
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Factory Lead Time:
6 Weeks
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Manufacturer:
Microchip Technology Inc
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YTEOL:
8
KSZ8721BL Frequently Asked Questions (FAQs)
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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.
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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.
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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.
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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.
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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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KSZ8721BL Overview
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About Microchip
Microchip Technology Inc. is a leading manufacturer of microcontrollers and semiconductor devices for a wide range of applications in the aerospace, automotive, consumer electronics, industrial, and medical industries. Alongside a comprehensive product portfolio, Microchip Technology Inc. also provides easy-to-use development tools that enable engineers to create optimal designs quickly with minimal iterations to reduce risk while lowering total system costs to market. Headquartered in Chandler, Arizona, th