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2181R-IA
Features
CMOS MAC, Baseband PHY, and RF in the module for 802.11b/g/n compatible WLAN
Complete 802.11n solution for 2.4G band
150Mbps receive PHY rate and 150Mbps transmit PHY rate using 40MHz bandwidth
802.11b/g/n compatible WLAN
802.11e QoS Enhancement(WMM)
802.11i(WPA,WP2). Open, shared key, and pair-wise key authentication services
WiFi Direct support
Light Weight TCP/IP protocol
802.11n OFDM
One Transmit and one Receive path(1T1R)
20MHz and 40MHz bandwidth transmission
Short Guard Interval(400ns)
Maximum data rate 54Mbps in 802.11g and 150Mbps in 802.11n
Host Interface：
2 X UART/2 X I2S1 X I2C
4 X SPI
8 X PWM
1 X SDMMC
1 X USB2.0
Applications
Smart Home/Smart City/Smart Transportation System/Smart Watch/Smart Lighting/Smart Wearable/Shared Devices
Block Diagram
Parameters
| Model No | 2181R-IA | Main Chipset | RDA5981 |
| Interface | Uart/SPI | WiFi Standard | IEEE802.11 b/g/n |
| Data Rate | 150Mbps | Certification | RoHS,REACH |
| RF Antenna | PCB Antenna | OS Supported | With MCU |
| Operating Frequency | 2.4G: 2.400 GHz～2.497 GHz | Operating Voltage | 3.3V |
| Storage | 8Mbit SPI flash | RAM | 128K Bytes SRAM |
| Demnsion | L22.5 * W13.0 * T2.1mm | RF Chain | 1T1R |
| Operating Temperature | -30°C to 85°C | Storage Tempeature | -40°C to 125°C |
Demensions
Download
Please download the specification from Download Center