User's Manual

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XR-31B WIFI module

XR-31B User manual

Version V1

Summary of content (15 pages)

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XR-31B WIFI module This device is intended only for OEM integrators under the following conditions: 1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) This device and its antenna(s) must not be co‐located with any other transmitters except in accordance with FCC multi‐transmitter product procedures. Referring to the multi‐transmitter policy, multiple‐transmitter(s) and module(s) can be operated simultaneously without C2P.
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XR-31B WIFI module 1.
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XR-31B WIFI module 1.2 Features ◼ EEE 802.11b/g/n, 1x1 SISO 2.4GHz ◼ Built-in ARM Cortex-M4F 32bit MCU with main frequency from 32KHz to 160MHz, support RTOS ◼ Built-in 256KB SRAM and 160KB ROM ◼ Support external Flash and eXecute In Place(XIP) ◼ 8 shared universal DMA channels ◼ Built-in 6 ways 12bit SAR type A/D converter ◼ Built-in Wi-Fi MAC/ BB/RF/PA/LNA ◼ Support WEP, WPA/WPA2, WPS2.
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XR-31B WIFI module 1.3 Key parameter Table 1.1 Description of the main parameters Module model XR-31B Mounting SMD16 Size(mm) 22*15*3(±0.2) Cert. FCC、CE、IC、REACH、RoHS SPI Flash 32Mbit(default) Interface UART/GPIO/ADC/PWM/I2C /SPI Number of GPIO 11 UART baud. 9600/19200/38400/115200/921600 bps Freq. 2400 ~2483.5MHz Antenna Onboard PCB antenna 802.11b: 17±2 dBm (@11Mbps) 802.11g: 15±2 dBm (@54Mbps) Tx Power 802.
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XR-31B WIFI module 54 Mbps (3/4 64-QAM): -75dBm HT20, MCS7 (65 Mbps, 72.2 Mbps): -73dBm RX Active(MCU active, DC-DC mode):31mA TX Active(MCU active, DC-DC mode): 164mA@11n MCS7 14dBm Power dissipation 192mA@11b CCK 19dBm (Typical) Standby: ~26.5uA Hibernation: ~4uA Shutdown: ~0.5uA Security WEP/WPA-PSK/WPA2-PSK/WPS2.0 Power Supply DC 2.7V ~ 5.5V，Imax >300mA Temperature -40 ℃ ~ 85 ℃ Storage Condition -55 ℃ ~ 150℃ ,< 90%RH Copyright © 2019 Shenzhen JiXinInteligence Co.
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XR-31B WIFI module 2. Pin definition XR-31B module has 16 pins，features are shown in Figure 2.1 and Table 2.2. Figure 2.1 XR-31B Pin diagram Table 2.2 Pin description Number Name Function description 1 GND ground 2 TX0 UART0_TX;JTAG_TMS；PWM4/ECT4；SWD_TMS；EINTB0 3 RX0 UART0_RX；JTAG_TCK；PWM5/ECT5；SWD_TCK；EINTB1 4 PB3 SWD_TCK；JTAG_TDI；PWM7/ECT7；EINTB3; download mode :pull-down, Run mode :do not handle or pull-up Copyright © 2019 Shenzhen JiXinInteligence Co.
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XR-31B WIFI module 5 PB2 SWD_TMS；JTAG_TD0；PWM6/ECT6；EINTB2； download mode: pull-down，work mode: do not handle or pull-up 6 PA23 EXT_DCDC_PUP ； WUPIO9(wake up IO) ； EINTA23 ； default cannot be high 7 PA22 UART2_TX；PWM3/ECT3；SPI1_CS0；WUPIO8；EINTA22 8 GND ground 9 PA21 UART2_RX; PWM2/ECT2；SPI1_CLK；WUPIO7；EINTA21 10 PA20 UART2_CTS;TWI0_SDA;PWM1/ECT1;SPI1_MISO; WUPIO6; EINTA20 11 PA19 UART2_RTS;TWI0_SCL;PWM0/ECT0;SPI1_MOSI; WUPIO5; EINTA19 12 PA13 LXTAL2; ADC_CH3;PWM5/ECT5;UART1_TX;EINTA1
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XR-31B WIFI module Table 2.3 mode RST rising Download edge rising Run edge Start mode PB2 PB3 low low low high high low high high Notice:PB2 and PB3 had beenpulled up in module,module has self-reset function 3. Electrical parameters 3.1 Electrical characteristics parameter test condition min typ max unit Storage - -55 normal 150 ℃ Work temp. - -40 20 85 ℃ Max welding IPC/JEDEC J-STD-020 - - 260 ℃ VCC 2.7 3.3/5 5.5 V VIL VCC_IO=3.3V -0.3 - 1.
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XR-31B WIFI module VOL VOH VCC_IO=3.3V, -0.3 - 0.4 V 2.9 - 3.4 V - - 12 mA Typ. Max |IOL|=7.5~50 mA VCC_IO=3.3V, |IOL|=7.5~50 mA IMAX - 3.2 Wi-Fi RF characteristic Description Min Unit Frequency 2400 - 2483.5 MHz Enter reflection value - - -10 dB Transmit Power CCK, 1 Mbps 17.20 17.72 - dBm CCK, 11Mbps 17.14 17.86 - dBm 6 Mbps OFDM 15.73 16.12 - dBm 54Mbps OFDM 15.02 15.96 - dBm HT20, MCS0 14.77 15.34 - dBm HT20, MCS7 14.28 15.11 - dBm -19.
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XR-31B WIFI module CCK, 11 Mbps -20.70 -21.58 - dB 6 Mbps OFDM -19.82 -20.39 - dB 54Mbps OFDM -31.32 -31.81 - dB HT20, MCS0 -25.21 -25.93 - dB HT20, MCS7 -31.36 -32.03 - dB Receiver Sensitivity CCK, 1 Mbps - -96 - dBm CCK, 11 Mbps - -91 - dBm 6 Mbps OFDM - -91 - dBm 54 Mbps OFDM - -75 - dBm HT20, MCS0 - -91 - dBm HT20, MCS7 - -73 - dBm 3.3 Power dissipation XR808, 25℃, VCC=3.3V,VDD_ANA=1.
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XR-31B WIFI module - 204.0 - mA - 39.0 40.0 46.0 42.0 49.0 217.0 - mA mA mA mA mA mA RX RX listen 1M DSSS DTIM1 - - mA mA uA - DTIM3 DTIM8 DTIM10 - - 40.5 33.3 1074. 0 435.0 200.0 167.0 47.0 3.5 0.5 - uA uA uA uA uA uA RX STANDBY Sleep Active TX RX PS Mode HIBERNATION SHUTDOWN OFF OFF OFF OFF OFF CS0 HT20,M 15dBm CS7 1M DSSS 11M CCK 54M OFDM HT20,MCS0 HT20,MCS7 1M 17dBm DSSS,nu ll frame Notice： ◼ ◼ ACTIVE mode， the power dissipation value is tested in MCU and WLAN activing.
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XR-31B WIFI module 6. Contact Us Address：A505 Room,Business Building,Suojia Science Park,Xixiang,Baoan District,Shenzhen Telephone：0755-23220940 Website：www.aimachip.com Copyright © 2019 Shenzhen JiXinInteligence Co.