- Fully integrated and green and RoHS modules include all required clocks, SPI flash, and passives

- 802.11b/g/n: 2.4 GHz

- FIPS 140-2 Level 1 validated IC inside

- Multilayered security features help developers protect identities, data, and software IP

- Low-power modes for battery-powered applications

- Coexistence with 2.4-GHz radios

- Industrial temperature: –40°C to +85°C

- WF3220 module includes a chip antenna for easy integration into the host system

- 1.27-mm pitch QFM package for easy assembly and low-cost PCB design

- Transferrable Wi-Fi Alliance® certification

- Application microcontroller subsystem:

- Arm® Cortex®-M4 core at 80 MHz

- User-dedicated memory:

- 256KB of RAM

- Optional 1MB of executable flash

- Rich set of peripherals and timers:

- McASP supports two I2S channels

- SD, SPI, I2C, UART, ADC

- 8-bit parallel interface

- Timers and PWM

- Watchdog timer

- Up to 21 GPIO pins

- Debug interfaces: JTAG, cJTAG, SWD

- Wi-Fi network processor subsystem:

- Wi-Fi® core:

- 802.11 b/g/n

- Modes:

- 802.11b/g/n Station

- 802.11b/g/n Access Point Supports up to Four Stations

- Wi-Fi Direct® Client and Group Owner

- Security:

- WEP

- WPA™/ WPA2™ PSK

- WPA2 Enterprise

- WPA3™ Personal

- Internet and application protocols:

- HTTPs server, mDNS, DNS-SD, DHCP

- IPv4 and IPv6 TCP/IP stack

- 16 BSD sockets (fully secured TLS v1.2 and SSL 3.0)

- Built-in power management subsystem:

- Configurable low-power profiles (always on, intermittently connected, tag)

- Advanced low-power modes

- Integrated DC/DC regulators

- Multilayered security features:

- Separate execution environments

- Networking security

- Device identity and key

- Hardware accelerator cryptographic engines(AES, DES, SHA/MD5, CRC)

- File system security (encryption, authentication, access control)

- Initial secure programming

- Software tamper detection

- Secure boot

- Certificate signing request (CSR)

- Unique per device key pair

- Application throughput

- UDP: 16 Mbps

- TCP: 13 Mbps

- Power-Management Subsystem:

- Integrated DC/DC converters support a wide range of supply voltage:

- Single wide-voltage supply

- VBAT: 2.3 V to 3.6 V

- Advanced low-power modes:

- Shutdown: 1 μA, Hibernate: 5 μA

- Low-power deep sleep (LPDS):

- 135 μA

- Idle connected (MCU in LPDS):

- 710 μA

- RX traffic (MCU active): 59 mA

- TX traffic (MCU active): 223 mA

- Wi-Fi TX power

- 17 dBm at 1 DSSS

- 13.5dBm at 54 OFDM

- Wi-Fi RX sensitivity

–95 dBm at 1 DSSS

-73.5 dBm at 54 OFDM

- Additional integrated components

- 40.0-MHz crystal

- 32.768-kHz crystal (RTC)

- 32Mbit SPI serial flash(see Device Family)

- RF filters, diplexer and passive components

- Footprint-compatible QFM package

- 1.27-mm pitch, 63-pin, 23mm × 20.5mm × 2.4mm

- Module supports the TI SimpleLink Developer's Ecosystem