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KSZ8721B, in 3D

KSZ8721B

Microchip Technology

0℃~+70℃ 1 10BASE-T、100BASE-TX、100BASE-FX 10Mbit/s、100Mbit/s 3.3V 340mW Ethernet Transceiver MII、RMII SSOP-48-300mil Ethernet Transceivers ROHS

Extended
DatasheetJLCPCBLCSCmicrochip/KSZ8721B
Category
Ethernet Transceivers
Package
SSOP-48-300mil
Pins
48

Overview

The KSZ8721B is an ethernet Transceiver made by Microchip Technology in a SSOP-48-300mil package with 48 pins. 0℃~+70℃ 1 10BASE-T、100BASE-TX、100BASE-FX 10Mbit/s、100Mbit/s 3.3V 340mW Ethernet Transceiver MII、RMII SSOP-48-300mil Ethernet Transceivers ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:KSZ8721SL, from EasyEDA) and its footprint (EasyEDA_Cloud:SSOP-48_L15.9-W7.5-P0.64-LS10.3-BL, from EasyEDA), ready for a KiCad board. 10 are in stock at JLCPCB (part C636780).

Symbol

MDIO1MDC2R3D3/PHYAD13RXD2/PHYAD24RXD1/PHYAD35RXD0/PHYAD46VDDIO7GND8RXDV/PCS_LPBK9RXC10RXER/ISO11GND12VDDC13TXER14TXC/REF_CLK15TXEN16TXD017TXD118TXD219TXD320COL/RMII21CRS/RMII_BTB22GND23VDDIO24INT#/PHYAD025LED0/TEST26LED1/SPD10027LED2/DUPLEX28LED3/NWAYEN29PD#30VDDRX31RX-32RX+33FXSD/FXEN34GND35GND36REXT37VDDRCV38GND39TX-40TX+41VDDTX42GND43GND44XO45XI46VDDPLL47RST#48
EasyEDA_Cloud:KSZ8721SLFrom EasyEDA

Footprint

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EasyEDA_Cloud:SSOP-48_L15.9-W7.5-P0.64-LS10.3-BLFrom EasyEDA

Parameters

10
Application Function
Transceiver
Data Rate
100Mbit/s
Ethernet Speed Standards
100BASE-FX
Features
Error detection and recovery
MAC Interface
MII
Number of ports
1
Operating Temperature
0℃~+70℃
Supply Voltage
2.375V~2.625V
Type
Ethernet Transceiver
Voltage - Supply
3.3V

Order codes

1

Pinout

48
The pins of the KSZ8721B
PinNameType
1MDIOUnspecified
2MDCUnspecified
3R3D3/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
45XOUnspecified
46XIUnspecified
47VDDPLLUnspecified
48RST#Unspecified

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Questions

Is there a KiCad symbol and footprint for the KSZ8721B?

Yes. The symbol is EasyEDA_Cloud:KSZ8721SL and the footprint EasyEDA_Cloud:SSOP-48_L15.9-W7.5-P0.64-LS10.3-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the KSZ8721B?

SSOP-48-300mil, with 48 pins. Its footprint is drawn on this page.

Where is the KSZ8721B datasheet?

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

Where can I order the KSZ8721B?

JLCPCB lists it as part C636780, with 10 in stock; the sellers' links on this page open their listings.

What can replace the KSZ8721B?

Parts like it in the library: the KSZ8721BI-TR by Microchip Technology, the KSZ8721SL by Microchip Technology, the KSZ8721SL-TR by Microchip Technology and the KSZ8721SLI-TR by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8