World's leading smart home solution provider BL3372-P_1V1 Version：1.6 WiFi/BT Module Product Release date：27/2/2023 Features Applications 100MHz 32bits MCU 256KB SRAM/4MB pSRAM External 2MB/4MB FLASH Support AES，MD5，SHA1 Support XIP Working voltage: DC 3.3V Support BLE (BT4.2) Wi-Fi related features Support 802.
-2- Content 1. Overview ........................................................................................................................... - 3 2. Basic Specifications ......................................................................................................... - 3 2.1. Power Consumption .................................................................................................- 3 2.2. Working Environment ............................................................................
-3- 1. Overview BL3372-P_1V1 is a cost-effective embedded Wi-Fi module designed by BroadLink, highly integrated with 32-bit MCU speed up to 100MHz, 256KB SRAM, 4MB pSRAM and 2MB or 4MB flash, with 3.3V power supply. The module integrates radio transceiver, MAC, baseband, all Wi-Fi protocols, BroadLink configurations, and network stack. It can be widely used in applications like smart home devices, remote monitoring devices and medical care instruments. 2. Basic Specifications 2.1.
-411n @16dBm 65Mbps BLE @5.5dBm 160 mA 2.2. Working Environment Please refer to Table 2 for working environment data. BroadLink Table 2 Symbol Description Ts BL3372-P_1V1 Working Environment Data Min. Max. Units Storage temperature -40 125 ℃ TA Ambient operating temperature 0 85 ℃ Vdd Supply voltage 3.0 3.6 V Vio Voltage on IO pin 0 3.6 V 3. Radio Specifications 3.1. Basic Radio Specification Please refer to Table 3 for radio specification.
-5802.11g≦-76dBm@54Mbps 802.11n/HT20≦-73dBm@MCS7 BLE ≦- 98dBm Stack IPv4, TCP/UDP/FTP/HTTP/HTTPS/TLS/mDNS Data rate (max) 11M@802.11b, 54M@802.11g, MCS7@802.11n Encryption standard: Open/WEP-Open/WPA/WPA2 Security BroadLink Encryption algorithm: WEP64/WEP128/TKIP/AES Network types STA/AP 3.2. Radio Performance 3.2.1 IEEE802.11b Table 4 Basic specifications under IEEE802.
-6Table 6 Receiving performance under IEEE802.11b RX Characteristics Min Typical Max. Unit -90 dBm . 11Mbps Input Level Sensitivity Minimum Input Level (FER≦ 8%) BroadLink 3.2.2. IEEE 802.11g Table 7 Basic specifications under IEEE802.11g ITEM Specification Modulation Type OFDM Frequency range 2412 MHz~ 2462 MHz Channel CH1 to CH11 Data rate 6, 9, 12, 18, 24, 36, 48, 54Mbps Table 8 Transmitting performance under IEEE802.11g TX Characteristics Min.
-7- 3.2.3 IEEE802.11n IEEE802.11n 20MHz bandwidth mode Table 10Basic specifications under IEEE802.11n with 20MHz ITEM Specification Modulation Type OFDM Frequency range BroadLink 2412 MHz~ 2462 MHz Channel CH1 to CH11 Data rate MCS0/1/2/3/4/5/6/7 Table 11 Transmitting performance under IEEE802.11n with 20MHz TX Characteristics Min. Power@HT20, MCS7 Frequency Error Typical Max. Unit 14.5 17.
-8- 4. BL3372-P_1V1 Hardware Information 4.1. PIN Sequence Please refer to Fig 1 for the pin sequence. BroadLink Fig 1 BL3372-P_1V1 pin sequence 4.2. PIN Definitions Please refer to Table 13 for pin definitions.
-911 12 13 14 15 16 17 18 Note: GPIO19 GPIO20 VDD GND GPIO4 GPIO1 GPIO3 GPIO2 PWM7 PWM0 TX1 RX1 Table PWM4 PWM1 PWM2 PWM3 SPI-MOSI SPI-MISO I2C-SDA I2C-SCL 13 BL3372-P_1V1 pin definitions SD_D0 SD_D1 SPI-SCL SPI-CS BroadLink 1. In default, UART0 (pin4 and pin5) are used for bypass communication and UART2 (pin6 and pin7) are used for output of debugging information and burning firmware. Please refer to the description in DC Characteristics for UART output current level. 2.
- 10 - BroadLink Fig 2 BL3372-P_1V1 Recommended PCB layout 4.4. Mechanical Dimensions Please refer to Fig 3 for the dimensions of module. Fig 3 BL3372-P_1V1 Module Dimensions Note: Dimensions (17.7±0.2) mm * (30±0.2) mm * (3.
- 11 - 4.5. Recommended Pad Size Please refer to Fig 4 for the recommended pad size BroadLink Fig 4 BL3372-P_1V1 Recommended pad size 4.6. Certifications 1. Certified for SRRC standard 2. Compliant with requirement of RoHS 2.0. 3. Compliant with requirement of REACH.
- 12 - 4.7. Label BroadLink Fig 5 BL3372-P_1V1 label content Please refer to Fig 8 for the content description on label. Model: *******: Module model SN: 00ACA3FE75D7: Module unique MAC address QR code: Model No. BL3372-P_1V1, MAC, CMIIT ID and other info 4.7. Shielding Case Dimensions Please refer to Fig 6 for the dimensions of shielding case.
- 13 - 4.8. Packaging Please refer to Fig 7 and Fig 8 for the details of packaging. BroadLink Fig 7 Packaging Fig 8 Carton BL3372-P_1V1 is packed in reel with 850 pcs/reel.
- 14 - 5. Reference Design 5.1. UART Interface Design For devices with 3.3V power supply, you can directly connect the device UART port with module UART port according to the illustration in Fig 12. BroadLink Fig 9 Circuit diagram (3.3V) If your device is powered by 5V, you can refer to the circuit shown in Fig 10 or design your own circuit for power conversion. The value of resistor can be adjusted according to actual circuit design.
- 15 - BroadLink Fig 10 Circuit diagram (5V) 5.2. Power Supply Requirement If an LDO is used to supply the module with 3.3V power, C1 capacitor can be used with 10uF-22uF; If a DCDC is used to supply 3.3V power, C1 capacitor can be used with 22uF. It is recommended to supply the module with power higher than 400mA to ensure enough power supply to the module and avoid power down during data. The module is designed with 2x 3.3V pins. You can power the module with either pin or both pins.
- 16 FCC Warning This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE 1: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
- 17 - Note 5: To ensure compliance with all non-transmitter functions the host manufacturer is responsible for ensuring compliance with the module(s) installed and fully operational.
- 18 Cet appareil et son antenne (s) ne doit pas être co-localisés ou fonctionnement en association avec une autre antenne ou transmetteur. This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un environnement non contrôlé.
- 19 - Revision History Date Version Updated Content 1/7/2021 1.0 Preliminary version 3/1/2022 1.1 Added some electrical parameters 6/28/2022 1.2 7/1/2022 1.3 8/25/2022 1.4 BroadLink Added IO multiplexing SDIO definition Added IO multiplexingSPI definition Add 4MB Flash spec option, modify pins’ definition 2/8/2023 1.5 Typesetting optimization 2/27/2023 1.
- 20 For more information of BroadLink Wi-Fi modules, please visit our website: www.broadlink.com.
