EMW3238 is a low-power embedded Wi-Fi and Bluetooth module integrates a wireless LAN MAC/baseband /radio, Bluetooth 4.1，and a Cortex-M4 microcontroller STM32F411CE that runs a unique \"self-hosted\" Wi-Fi networking library and software application stack. EMW3238 has 2M bytes of on-board flash besides 512K bytes of in-chip flash, 128K bytes RAM and rich peripherals for user embedded Wi-Fi applications. The wireless module complies with 2.4 GHz WLAN IEEE 802.11 b/g/n MAC/baseband/radio,Bluetooth 4.1 standard and it can achieve up to a speed of 72.2Mbps with single stream in 802.11n draft 7.0, 54Mbps as specified in IEEE 802.11g, or 11Mbps for IEEE 802.11b to connect to the wireless LAN. This compact module is a total solution for a combination of Wi-Fi 802.11b/g/n technologies with Microcontroller Processor. The module is specifically developed for embedded system devices.
特性：
Consists of a Cortex-M4 microcontroller and an IEEE 802.11 b/g/n chip.
Cortex-M4 core at 100MHz.
2M bytes on-board SPI flash and 512K bytes on-chip flash.
128K bytes RAM.
Single-band 2.4 GHz IEEE 802.11b/g/n.
Support for TurboQAM® (MCS-8 86 Mbps and MCS-9 96 Mbps) HT20, 20 MHz channel bandwidth.
Complies with Bluetooth Core. Specification Version 4.1 with provisions for supporting future specifications.
Bluetooth Class 1 or Class 2 transmitter operation.
Integrated iTR switch supports a single 2.4 GHz antenna shared between WLAN and Bluetooth.
Integrated ARM Cortex-M4 CPU with on-chip memory enables running IEEE802.11 firmware that can be field-upgraded with future features.
Lead-Free / RoHS.
Single power supply voltage 3.3V.
Security:
Hardware WAPI acceleration engine.
AES in WLAN hardware for faster data encryption and IEEE 802.11i compatibility.
WPA–and WPA2-(Personal) support for powerful encryption and authentication.
Reference WLAN subsystem provides Cisco® Compatible Extensions (CCX, CCX 2.0, CCX3.0, CCX 4.0, CCX 5.0).
Reference WLAN subsystem provides Wi–Fi Protected Setup (WPS).
Operating Temperature: -20°C to 70°C.
