SmartConnect WINC3400
Wireless Network Controller
The Atmel® SmartConnect ATWINC3400 is a single-chip IEEE 802.11 b/g/n RF/Baseband/MAC network controller and Bluetooth®
4.0 Low Energy (BLE) compliant module optimized for low-power mobile applications. It supports single stream 1x1 802.11n mode,
providing up to 72 Mbps throughput. The ATWINC3400 device features a fully integrated power amplifier, LNA, switch and power
management, as well as an on-chip microcontroller (MCU) and integrated Flash memory for system software. Implemented in 65nm
CMOS technology, it offers very low power consumption while simultaneously providing high performance and a minimal bill of materials.
The ATWINC3400 wireless network controller utilizes highly optimized coexistence protocols. It provides multiple peripheral interfaces,
including UART, SPI, I2C, and SDIO. For simplicity, both Wi-Fi and BLE can run on a single peripheral interface (SPI).
The only external clock sources required is a high-speed crystal or oscillator with a wide range of reference clock frequencies supported
(14-40 MHz) and a 32.768 kHz clock for sleep operation. The device is available in QFN packaging.
Key Features
IEEE 802.11
Bluetooth Low Energy
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IEEE 802.11 b/g/n RF/PHY/MAC SoC
IEEE 802.11 b/g/n (1x1) for up to 72 Mbps
Single spatial stream in 2.4GHz ISM band
Integrated PA and T/R switch
Superior sensitivity & range via advanced PHY signal processing
Advanced equalization and channel estimation
Advanced carrier and timing synchronization
Wi-Fi Direct and Soft-AP support
Supports IEEE 802.11 WEP, WPA, WPA2 security
Superior MAC throughput via hardware accelerated
two-level A-MSDU/A-MPDU frame aggregation and block
acknowledgement
On-chip memory management engine to reduce host load
SPI, SDIO, I2C, and UART host interfaces
Operating temperature range of -30°C to +85°C
Fast boot options:
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Bluetooth 4.0 low energy (BLE) technology
Class 1 & 2 transmission
Adaptive frequency hopping
HCI (Host Control Interface) via SPI (or UART)
Integrated PA and T/R switch
Superior sensitivity and range
Target Applications
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IoT applications
Smart appliances
Healthcare
Home automation
Consumer electronics
Industrial automation
Mobile applications
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- On-chip boot ROM (firmware instant boot)
- SPI flash boot (firmware patches and state variables)
- Low-leakage on-chip memory for state variables
- Fast AP re-association (150ms)
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On-chip network stack to offload MCU:
- Integrated Nnetwork IP stack to minimize host
CPU requirements
- Network features: TCP, UDP, DHCP, ARP, HTTP, SSL,
and DNS