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ATWINC3400-IC
  • ATWINC3400-IC

ATWINC3400-IC

In Production

Microchip's ATWINC3400-IC is an IEEE 802.11 b/g/n plus Bluetooth 5 Core Specification, Internet of Things (IoT) network controller IC. It is the ideal add-on to existing microcontroller (MCU) solutions, offering Wi-Fi® and Bluetooth® Low Energy (BLE) network capabilities through a SPI-to-Wi-Fi interface. The ATWINC3400 connects to any Microchip PIC® or SAM MCU with minimal resource requirements. A MCU host driver can be found in the Advanced Software Framework (ASF) and in MPLAB Harmony v3. The ATWINC3400’s most advanced mode is a single-stream 1 x 1 802.11n mode. The ATWINC3400 features a fully integrated power amplifier, LNA, switch and power management. The ATWINC3400 also features an on-chip processor and integrated Flash memory for system software with built-in coexistence m...

Microchip Technology ATWINC3400-IC Product Info

16 April 2026 0

Parameters

Frequency Range

2.4

Operating Temp (°C) Min

-40

Operating Temp (°C) Max

85

Operating Voltage (V) Min

2.7

Operating Voltage (V) Max

3.6

Packages

VQFN

Pin Count

48

Power Down Mode Current Consumption (uA)

10.5

RX Current Consumption (mA)

87

TX Current Consumption (mA)

256

RX Sensitivity (dBm)

-90

Wi-Fi Spec

802.11 b/g/n

SRAM (KB)

548

Sleep Mode Current Consumption (μA)

1

SoftAP Client Count

1

TX Output Power (dBm)

17.5

Downlink Throughput (Mbps)

7

Uplink Throughput (Mbps)

8

Wi-Fi Security

WPA, WPA2, WEP

Encryption

WEP, WPA-TKIP, WPA2, CCMP-AES

Bluetooth Spec

5.0

Features

  • IEEE 802.11 b/g/n 20MHz (1x1) solution
  • Compatible with Wi-Fi 6/7 2.4 GHz band
  • Single spatial stream in 2.4GHz ISM band
  • Integrated PA and T/R Switch
  • Superior Sensitivity and Range via advanced PHY signal processing
  • Operating temperature range of -40C to +85C
  • On-Chip Network Stack to offload MCU: Integrated Network IP stack to minimize host CPU requirements Network features: TCP, UDP, DHCP, ARP, HTTP, SSL, and DNS
  • Integrated Network IP stack to minimize host CPU requirements
  • Network features: TCP, UDP, DHCP, ARP, HTTP, SSL, and DNS
  • On-Chip Network Stack to offload MCU
  • BLE 5.0
  • Class 2 transmission and Adaptive Frequency Hopping
  • Integrated PA and T/R Switch
  • Superior Sensitivity and Range

    • Description

    Microchip's ATWINC3400-IC is an IEEE 802.11 b/g/n plus Bluetooth 5 Core Specification, Internet of Things (IoT) network controller IC. It is the ideal add-on to existing microcontroller (MCU) solutions, offering Wi-Fi® and Bluetooth® Low Energy (BLE) network capabilities through a SPI-to-Wi-Fi interface. The ATWINC3400 connects to any Microchip PIC® or SAM MCU with minimal resource requirements. 

    A MCU host driver can be found in the Advanced Software Framework (ASF) and in MPLAB Harmony v3. 

    The ATWINC3400’s most advanced mode is a single-stream 1 x 1 802.11n mode. The ATWINC3400 features a fully integrated power amplifier, LNA, switch and power management. The ATWINC3400 also features an on-chip processor and integrated Flash memory for system software with built-in coexistence mechanism for concurrent Wi-Fi and BLE functionality. The only external clock source needed for the ATWINC3400 is a high-speed crystal or oscillator. The ATWINC3400 is available in a 48-pin VQFN package with dimensions of 6x6mm.

    Microchip's complimentary and confidential Wireless Check online design review service is available for customers who have selected our products for their application design-in*.

    *The online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

    Click here for our Firmware Release Summary

    Available in a fully-certified modules with u.FL connector or PCB antenna. 

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