Mfr Part #:

W3100A-LF

Mfr Name: WIZnet

The WIZnet W3100A-LF is a fully hardwired TCP/IP chip designed for embedded networking applications. It offers line-speed data transmission and offloads MCU processing power.

✓ Total Stock: 839 pcs

W3100A-LF Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Smaxon Electronics ✓ Non-Authorised Inventory information	689 pcs On Request	689 pcs	On Request	1	On Request	On Request	04+	On Request	On Request
Optech Co.,Limited ✓ Non-Authorised Inventory information	150 pcs On Request	150 pcs	On Request	1	On Request	On Request	04+	On Request	On Request

W3100A-LF Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	WIZnet
Channels	4
Operating Temperature	0°C to 70°C
Package / Case	LQFP
Package Quantity	64-Pin
Protocol	TCP, UDP, IP, ARP, ICMP, MAC

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W3100A-LF Description

Short technical summary and product information.

The WIZnet W3100A-LF is an innovative embedded networking solution, functioning as a device server and TCP/IP chip. It is engineered for line-speed data transmission through hardwired logic, significantly saving MCU processing power by offloading TCP/IP tasks. This chip simplifies control and requires no operating system, making it a cost-effective choice for embedded systems.

Key features include support for TCP, UDP, IP, ARP, ICMP, and MAC protocols, with impressive processing speeds depending on the host MCU. It integrates a 10/100Base-T Ethernet gateway with auto-detection and supports four independent channels simultaneously with dynamic buffer allocation. The device operates on a 3.3V internal voltage with 5V tolerant I/Os and is housed in a compact 64-pin LQFP package.

Applications include acting as an Internet Controller for low-end MCUs in data collectors or as an Internet Accelerator to reduce jitter and enhance video and voice quality. The chip provides an MCU bus and I2C serial interface for MCU communication and an MII interface for the physical layer. It comes with 16KB of embedded data buffer and a simple Socket API interface. Source codes for DHCP, TELNET, FTP, HTTP, DNS, and SNMP are provided, written entirely in ANSI C and free to use.

W3100A-LF Quick Information

Product Type: TCP/IP Chip

Canonical Name: WIZnet W3100A-LF TCP/IP Chip

Subcategory: TCP/IP Chip

W3100A-LF Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

Lead Free: Yes

W3100A-LF Features

Hardwired TCP/IP chip for embedded networking.
Supports 10/100Base-T Ethernet gateway.
Features 4 independent communication channels.
Operates at 3.3V with 5V tolerant I/Os.
Compact 64-pin LQFP package.

W3100A-LF Applications

Acts as an Internet Controller for MCUs.
Functions as an Internet Accelerator.
Enhances video and voice quality.
Used in data collectors and embedded systems.

W3100A-LF FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating voltage of the W3100A-LF?

3.3V internal operation with 5V tolerant I/O.

What is the operating temperature range?

0°C to 70°C.

What package is the W3100A-LF available in?

64-pin LQFP package.

What network protocols does the W3100A-LF support?

TCP, UDP, IP, ARP, ICMP, and MAC.

How many independent channels does the W3100A-LF have?

4 independent channels with dynamic buffer allocation.

What is the size of the embedded data buffer?

16 KB.

What interfaces does it provide for MCU connection?

MCU bus interface and I2C serial interface.