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ATWINC3400
  • ATWINC3400
  • ATWINC3400

ATWINC3400

In Production

Microchip's ATWINC3400 is an IEEE 802.11 b/g/n plus Bluetooth 5 Core Specification, Internet of Things (IoT) network controller module. 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(r) 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 coexisten...

Microchip Technology ATWINC3400 Product Info

16 April 2026 0

Parameters

Antenna Type

Chip, U.FL

Concurrent Mode (STA / AP)

No

Enterprise Security

Yes

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

Power Down Mode Current Consumption (uA)

10.5

RX Current Consumption (mA)

87

TX Current Consumption (mA)

256

RX Sensitivity (dBm)

-90

Sleep Mode Current Consumption (μA)

1

SoftAP Client Count

1

Supported Host OS

Non-OS

Downlink Throughput (Mbps)

7

Uplink Throughput (Mbps)

8

Wi-Fi Security

WPA, WPA2, WEP, Enterprise

Regulatory

FCC, CE, ISED

Encryption

WEP, WPA-TKIP, WPA2, CCMP-AES

Features

  • IEEE 802.11 b/g/n 20MHz (1x1) Wi-Fi plus Bluetooth 5
  • Compatible with Wi-Fi 6/7 2.4 GHz band
  • Network features: TCP, UDP, DHCP, ARP, HTTP, SSL, and DNS
  • Supported Security Protocols: WPA/WPA2 Personal, WPA2 Enterprise (firmware v. 1.31 or later), TLS, SSL
  • Bluetooth 5 Certified
  • Agency Certified in the US, Canada, Europe, Japan, Korea, China, India and Taiwan
  • 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
  • Integrated Network IP stack to minimize host CPU requirements
  • On-Chip Network Stack to offload MCU
  • Class 2 transmission and Adaptive Frequency Hopping

    • Description

    Microchip's ATWINC3400 is an IEEE 802.11 b/g/n plus Bluetooth 5 Core Specification, Internet of Things (IoT) network controller module. 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(r) 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 36-pin module with dimensions of 22.4 x 14.7 mm.

    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

    Latest module firmware available:

    ATWINC3400-MR210CA143

    ATWINC3400-MR210UA143

    Looking for a chip level solution? Check out the IC solution here ATWINC3400-IC

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