Skip to the content
PCBKitNew board
KSZ8721CL on a board, in 3D

KSZ8721CL

Microchip Technology

0℃~+70℃ 1 3.3V MII、RMII PHY Transceiver LQFP-48(7x7) Ethernet Transceivers ROHS

Extended
DatasheetJLCPCBLCSCmicrochip/KSZ8721CL
Category
Ethernet Transceivers
Package
LQFP-48(7x7)
Pins
48

Overview

The KSZ8721CL is an ethernet Transceiver made by Microchip Technology in a LQFP-48(7x7) package with 48 pins. 0℃~+70℃ 1 3.3V MII、RMII PHY Transceiver LQFP-48(7x7) Ethernet Transceivers ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:KSZ8721CL, from EasyEDA) and its footprint (Package_QFP:LQFP-48_7x7mm_P0.5mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C633712).

Symbol

MDIO1MDC2RXD3/PHYAD13RXD2/PHYAD24RXD1/PHYAD35RXD0/PHYAD46VDDIO7GND8RXDV/PCS_LPBK9RXC10RXER/ISO11GND12VDDC13TXER14TXC/REF_CLK15TXEN16TXD017TXD118TXD219TXD320COL/RMII21CRS/RMII_BTB22GND23VDDIO24INT#/PHYAD025LED0/TEST26LED1/SPD10027LED2/DUPLEX28LED3/NWAYEN29PD#30VDDRX31RX–32RX+33FXSD/FXEN34GND35GND36REXT37VDDRCV38GND39TX–40TX+41VDDTX42GND43GND44X045X146VDDPLL47RST#48
EasyEDA_Cloud:KSZ8721CLFrom EasyEDA

Footprint

Package_QFP:LQFP-48_7x7mm_P0.5mmFrom KiCad's library

Parameters

12
Application Function
PHYtransceiver
Data Rate
10Mbit/s, 100Mbit/s
Ethernet Speed Standards
10BASE-T, 100BASE-TX, 100BASE-FX
Features
Support optical fiber, Programmable LED indication, Low-power mode, Error detection and recovery
Interface
；
MAC Interface
MII, RMII
Number of ports
1
Operating Temperature
0℃~+70℃
Supply Current
116mA
Supply Voltage
3.3V
Type
PHY Transceiver
Voltage - Supply
3.3V

Order codes

1

Pinout

48
The pins of the KSZ8721CL
PinNameType
1MDIOUnspecified
2MDCUnspecified
3RXD3/PHYAD1Unspecified
4RXD2/PHYAD2Unspecified
5RXD1/PHYAD3Unspecified
6RXD0/PHYAD4Unspecified
7VDDIOUnspecified
8GNDUnspecified
9RXDV/PCS_LPBKUnspecified
10RXCUnspecified
11RXER/ISOUnspecified
12GNDUnspecified
13VDDCUnspecified
14TXERUnspecified
15TXC/REF_CLKUnspecified
16TXENUnspecified
17TXD0Unspecified
18TXD1Unspecified
19TXD2Unspecified
20TXD3Unspecified
21COL/RMIIUnspecified
22CRS/RMII_BTBUnspecified
23GNDUnspecified
24VDDIOUnspecified
25INT#/PHYAD0Unspecified
26LED0/TESTUnspecified
27LED1/SPD100Unspecified
28LED2/DUPLEXUnspecified
29LED3/NWAYENUnspecified
30PD#Unspecified
31VDDRXUnspecified
32RX–Unspecified
33RX+Unspecified
34FXSD/FXENUnspecified
35GNDUnspecified
36GNDUnspecified
37REXTUnspecified
38VDDRCVUnspecified
39GNDUnspecified
40TX–Unspecified
41TX+Unspecified
42VDDTXUnspecified
43GNDUnspecified
44GNDUnspecified
45X0Unspecified
46X1Unspecified
47VDDPLLUnspecified
48RST#Unspecified

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/microchip/KSZ8721CL" title="KSZ8721CL in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/microchip/KSZ8721CL.jpg" alt="KSZ8721CL" width="1200" height="900">
A picture that opens the part, for a README
[![KSZ8721CL](https://pcbkit.io/embed/parts/microchip/KSZ8721CL.jpg?size=s)](https://pcbkit.io/parts/microchip/KSZ8721CL)

Questions

Is there a KiCad symbol and footprint for the KSZ8721CL?

Yes. The symbol is EasyEDA_Cloud:KSZ8721CL and the footprint Package_QFP:LQFP-48_7x7mm_P0.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the KSZ8721CL?

LQFP-48(7x7), with 48 pins. Its footprint is drawn on this page.

Where is the KSZ8721CL datasheet?

Microchip Technology publishes it: the Datasheet link on this page opens it.

Where can I order the KSZ8721CL?

JLCPCB lists it as part C633712, with 0 in stock; the sellers' links on this page open their listings.

What can replace the KSZ8721CL?

Parts like it in the library: the DP83848IVVX by Texas Instruments, the W5100S-L by WIZNET, the DM9161AEP by DAVICOM and the DP83640TVVX by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8