碧德（BDE）是美国德州仪器（TI）第三方合作伙伴

BDE-WF3235SFA(U)是一款基于CC3235S(或CC3235SF) SoC的802.11a/b/g/n, 2.4GHz和5GHz双频，IPv4和IPv6, 256KB RAM(或1MB可执行flash/256KB RAM)的低能量MCU模块。该模块提供了一个独特的组合，更低的功率，集成所有外部组件，包括双频芯片天线，成本非常低廉。

BDE-WFM20B模块为物联网而创建，是一个无线模块，集成了两个物理上分离的片上mcu，一个CM4应用处理器和一个网络处理器。BDE-WFM20B引入了新的功能，进一步简化了事物到互联网的连接。BDE-WFM20B的主要功能包括:

•802.11 a/b/g/n:支持2.4 GHz和5ghz

•2.4 GHz与蓝牙®低能量无线电共存

•集成双频芯片天线或外置天线UFL连接器

•更多的并发安全套接字，多达16个

•具有生成证书签名请求(CSR)能力的唯一设备标识符

•在线证书状态协议(OCSP)

•Wi-Fi Alliance®通过物联网低功耗能力认证

•卸载模板包的无主机模式

•改进的快速扫描。

•应用处理器- Arm®Cortex®- m4 MCU，配有用户专用256KB RAM和可选1MB

可执行的闪光。

•网络处理器，运行所有Wi-Fi和互联网逻辑层。

这个基于rom的子系统完全

卸载主机MCU，并包括一个802.11 a/b/g/n双频2.4 ghz和5 ghz无线电、基带和

MAC具有强大的硬件加密引擎。

•32Mbit SPI串行flash。

Key Features

- 802.11a/b/g/n: 2.4 GHz and 5 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

- Antenna: Integrated Dual-band chip antenna or UFL connector

- 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

- 1MB of executable flash (BDE-WFM20BSF)

- Rich set of peripherals and timers:

- McASP supports two I2S channels

- SD, SPI, I2C, UART

- 8-bit synchronous imager interface

- 4-channel 12-bit ADCs

- 4 general-purpose timers (GPT) with 16-bit PWM mode

- Watchdog timer

- Up to 27 GPIO pins

- Debug interfaces: JTAG, cJTAG, SWD

- Wi-Fi network processor subsystem:

- Wi-Fi® core:

- 802.11 a/b/g/n 2.4 GHz and 5 GHz

- Modes:

- Access point (AP)

- Station (STA)

- Wi-Fi Direct® (only supported on 2.4GHz)

- 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: 5.5 μA

- Low-power deep sleep (LPDS):120 μA

- Idle connected (MCU in LPDS):710 μA

- RX traffic (MCU active): 59 mA

- TX traffic (MCU active): 223 mA

- Wi-Fi TX power

- 2.4 GHz: 16 dBm at 1 DSSS

- 5 GHz: 15.1 dBm at 6 OFDM

- Wi-Fi RX sensitivity

- 2.4 GHz: –94.5 dBm at 1 DSSS

- 5 GHz: –89 dBm at 6 OFDM

- Additional integrated components

- 40.0-MHz crystal

- 32.768-kHz crystal (RTC)

- 32Mbit SPI serial flash

- RF filters, diplexer and passive components

- Footprint-compatible QFM package

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

- Module supports the TI SimpleLink Developer's Ecosystem

-Certifications

- FCC ID: 2ABRU-WFM20B

- IC: 25657-WFM20B

- CE-RED