Shenzhen Hi-Link Electronic Co., Ltd. HLK-M20 specifications Version：V1.0 Revise date：2020-4-13 All rights reserved @Shenzhen Hi-link Electronic co.
CONTENTS 1.PRODUCT BRIEF.......................................................................................................................................................... 1 1.1. HLK-M20 SERIES................................................................................................................................... ...........1 1.2. WLAN FEATURES.............................................................................................................................................
HLK-M20 Specification 1.Product Brief Applications: IOT, IPTV, TV, surveillance, etc. Integration: single chip integrating BB/PMIC/RF/PA/Memory/LNA/Balun Advantages: lower power consumption, better performance, larger memory Specifications: 802.11 b/g/n 150Mbps 2.4GHz Integrated MCU, 160MHz Interface (I2C, I2S, 3*UART, 2*SPI, SDIO, 6*hard PWM, 4*ADC, 14*GPIO) Support FreeRTOS 1.1.
HLK-M20 Specification Pic 2 Pin and SMD models on the back 1.2. WLAN features Single chip integration MAC/PHY/DMAC Support 2.4GHz IEEE 802.11b/g/n 20/40MHz bandwidth, maximum 150Mbps Support (WPA)/WPA2/WPA2-Enterprise/Wi-Fi Support softAP Support A-MPDU, A-MSDU 1.3.
HLK-M20 Specification 2. Functional block diagram Pic 3 Module functional block diagram 3. Specifications 3.1.
HLK-M20 Specification 3.2. Interface Project Parameter Serial port Support up to 3 serial ports, baud rate can be configured from performance 1200bps-500000bps Support 1 channel I2S interface; BCLK of I2S host support 8/32/44.1/48/ I2S interface 88.2/96KHz; support 16/32 bit per channel, data format can be configured as performance 8/16/20/24/32bit I2C interface Support an I2C standard interface.
HLK-M20 Specification 4. Module pin definition 4.1. Pin definition diagram Pic 4 Pin definition diagram Notes： 1，The picture is defined by default, the multiplexing function is not listed。 2，Please leave the unused functions.
HLK-M20 Specification 4.2. Pin description Pin Pin name number Type Direction 1 RST I RESET signal of the chip 2 GND I/O buck ground 3 GPIO14 I/O General purpose input/output 4 GPIO15 I/O General purpose input/output 5 GPIO20 I/O General purpose input/output 6 GPIO17 I/O General purpose input/output 7 GPIO21 I/O General purpose input/output 8 3.
HLK-M20 Specification 5. Module dimension drawing unit：mm Pic 5 Dimensional drawing of the module 6.
HLK-M20 Specification Note: This is a schematic diagram of the M20 development test suite. Please obtain the schematic diagram and PCB source files from the sales. 7. Recommended reflow temperature When the module passes the furnace for the second time, please strictly follow this temperature curve. If the temperature deviation of reflow soldering is too higher, the module will be damaged!.
HLK-M20 Specification 8. Revisition Date Version Revised content 2020/4/13 1.0 initial version 2020/5/28 1.
2.2 List of applicable FCC rules FCC Part 15.247 2.6 RF exposure considerations This equipment complies with the FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and any part of your body. 2.
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: This product has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
