32 Network Interfaces 343

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Part RoHS Manufacturer Telecom IC Type Temperature Grade Terminal Form No. of Terminals Package Code Package Shape Total Dose (V) Package Body Material Surface Mount No. of Functions No. of Channels Technology Screening Level Nominal Negative Supply Voltage No. of Transceivers Maximum Supply Current Nominal Supply Voltage Power Supplies (V) Package Style (Meter) Package Equivalence Code Sub-Category Terminal Pitch Maximum Operating Temperature Minimum Operating Temperature Terminal Finish Terminal Position Data Rate JESD-30 Code Moisture Sensitivity Level (MSL) Maximum Seated Height Width Qualification Additional Features JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Length

78Q2123/F

Analog Devices

ETHERNET TRANSCEIVER

COMMERCIAL

NO LEAD

32

HVQCCN

SQUARE

UNSPECIFIED

YES

1

1

.11 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC32,.2SQ,20

Network Interfaces

.5 mm

70 Cel

0 Cel

TIN

QUAD

100 Mbps

S-XQCC-N32

1

.9 mm

5 mm

Not Qualified

e3

5 mm

78Q2123R/F

Analog Devices

ETHERNET TRANSCEIVER

COMMERCIAL

NO LEAD

32

HVQCCN

SQUARE

UNSPECIFIED

YES

1

1

.11 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC32,.2SQ,20

Network Interfaces

.5 mm

70 Cel

0 Cel

MATTE TIN

QUAD

100 Mbps

S-XQCC-N32

1

.9 mm

5 mm

Not Qualified

e3

30

260

5 mm

78Q2133/F

Analog Devices

ETHERNET TRANSCEIVER

INDUSTRIAL

NO LEAD

32

HVQCCN

SQUARE

UNSPECIFIED

YES

1

1

.11 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC32,.2SQ,20

Network Interfaces

.5 mm

85 Cel

-40 Cel

MATTE TIN

QUAD

100 Mbps

S-XQCC-N32

1

.9 mm

5 mm

Not Qualified

e3

5 mm

78Q2133R/F

Analog Devices

ETHERNET TRANSCEIVER

INDUSTRIAL

NO LEAD

32

HVQCCN

SQUARE

UNSPECIFIED

YES

1

1

.11 mA

3.3 V

3.3

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC32,.2SQ,20

Network Interfaces

.5 mm

85 Cel

-40 Cel

MATTE TIN

QUAD

100 Mbps

S-XQCC-N32

1

.9 mm

5 mm

Not Qualified

e3

5 mm

935285408512

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281289518

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285409518

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281537518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285435518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281535518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281538518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285406512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285404512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285404518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285408518

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281537512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285407518

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281292518

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281539512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285409512

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285435512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281539518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285405518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285405512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281541518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935276198118

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281289512

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281292512

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281291512

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935276198112

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935276198512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285411518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281536512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285411512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285407512

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281536518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281291518

NXP Semiconductors

INTERFACE CIRCUIT

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285436518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285436512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281541512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935285406518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281535512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

935281538512

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

DUAL

R-PDSO-G32

1.1 mm

6.1 mm

11 mm

MC34903CP5EK

NXP Semiconductors

SUPPORT CIRCUIT

AUTOMOTIVE

GULL WING

32

HSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

CMOS

1

.008 mA

5 V

5.5/28

SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH

SSOP32,.4

Network Interfaces

.65 mm

125 Cel

-40 Cel

TIN

DUAL

1 Mbps

R-PDSO-G32

3

2.45 mm

7.5 mm

Not Qualified

e3

40

260

11 mm

935288872518

NXP Semiconductors

ETHERNET TRANSCEIVER

AUTOMOTIVE

GULL WING

32

HTSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

AEC-Q100

SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

.65 mm

125 Cel

-40 Cel

NICKEL PALLADIUM GOLD SILVER

DUAL

R-PDSO-G32

3

1.1 mm

6.1 mm

e4

30

260

11 mm

MC34903CP3EK/R2

NXP Semiconductors

SUPPORT CIRCUIT

AUTOMOTIVE

GULL WING

32

HSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

CMOS

1

.008 mA

3.3 V

5.5/28

SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH

SSOP32,.4

Network Interfaces

.65 mm

125 Cel

-40 Cel

Matte Tin (Sn)

DUAL

1 Mbps

R-PDSO-G32

3

2.45 mm

7.5 mm

Not Qualified

e3

40

260

11 mm

MC34904C3EK/R2

NXP Semiconductors

SUPPORT CIRCUIT

AUTOMOTIVE

GULL WING

32

HSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

CMOS

1

.008 mA

3.3 V

5.5/28

SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH

SSOP32,.4

Network Interfaces

.65 mm

125 Cel

-40 Cel

Matte Tin (Sn)

DUAL

1 Mbps

R-PDSO-G32

3

2.45 mm

7.5 mm

Not Qualified

e3

40

260

11 mm

MC34905CS3EK/R2

NXP Semiconductors

SUPPORT CIRCUIT

AUTOMOTIVE

GULL WING

32

HSSOP

RECTANGULAR

PLASTIC/EPOXY

YES

1

CMOS

1

.008 mA

3.3 V

5.5/28

SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH

SSOP32,.4

Network Interfaces

.65 mm

125 Cel

-40 Cel

Matte Tin (Sn)

DUAL

1 Mbps

R-PDSO-G32

3

2.45 mm

7.5 mm

Not Qualified

e3

40

260

11 mm

Network Interfaces

A network interface is an electronic component that connects a device to a network, enabling it to communicate with other devices and access shared resources. Network interfaces are essential for modern communication systems, providing a means of transmitting and receiving data over a variety of communication channels and protocols.

Some common types of network interfaces include Ethernet, Wi-Fi, Bluetooth, and cellular network interfaces. Ethernet is a wired network interface that uses twisted-pair cables to transmit data over local area networks (LANs). Wi-Fi is a wireless network interface that uses radio waves to transmit data over wireless local area networks (WLANs). Bluetooth is a short-range wireless network interface that is used for connecting peripheral devices such as keyboards and headphones to computers and mobile devices. Cellular network interfaces are used for mobile communications over cellular networks, providing internet connectivity and voice communication.

Network interfaces use various protocols and standards to ensure reliable and efficient data transmission. These protocols include TCP/IP, which is used for internet communication, and IEEE 802.11, which is used for wireless LANs. Network interfaces also use techniques such as packet framing, error correction, and flow control to ensure that data is transmitted accurately and efficiently.

In addition to providing a means of data transmission, network interfaces also enable devices to access shared resources such as printers and file servers. They also enable devices to communicate with each other, allowing for collaboration and information sharing.