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W5B03A-1720DFV1 Module

1 Product Description

W5B03A-1720DFV1-1624 (hereinafter referred to as W5B03A) is a module based on the Realtek highly integrated chip RTL8720DF, which supports WLAN dual-band (2.4GHz and 5GHz) and low-power Bluetooth 5.0. The chip integrates the Real-M300 (or KM4) high-performance MCU (Armv8-M, compatible with Cortex-M33 instruction set), Real-M200 (or KM0) low-power MCU (Armv8-M, Cortex-M23 instruction set compatible), WLAN (802.11a/b/g/n) MAC, supports 1T1R WLAN baseband, radio frequency, and Bluetooth. It provides a set of configurable GPIOs for controlling different peripheral devices and integrates internal storage, supporting simple application development, and enabling complete Wi-Fi and BT 5.0 protocol functionalities.

1.1 Product Features

  • Integrated low-power KM4 MCU, also can function as an application processor.
  • Supports a main frequency of 200MHz.
  • Operating voltage: 3.0V~3.6V.
  • Supports 802.11 a/b/g/n, 2.4GHz, and 5GHz.
  • Supports HT20/HT40 modes.
  • Supports BLE 5.0.
  • Supports low-power Beacon listening mode.
  • WiFi/BT shared antenna.
  • Built-in AES/DES/FSHA hardware engine.
  • Supports TrustZone-M secure boot.
  • Supports STA/AP/STA+AP operating modes.
  • Operating temperature: -20°C to 85°C or -40°C to 105°C (depending on ordering information).

1.2 Specification Description

Item Description
Product Name W5B03A-1720DF
Product Description Wi-Fi 2.4GHz/5GHz and BLE 5.0 dual-mode dual-band module
Interface Type SMT type
Environmental Protection All hardware components fully comply with EU RoHS directive

1.3 Absolute Electrical Parameters

Parameter Description Minimum Value Maximum Value Unit
Ts Storage Temperature -40 125 °C
VBAT Supply Voltage 3.0 3.6 V
Electrostatic Discharge Voltage (Human Model) TAMB -25°C -2 2 KV
Electrostatic Discharge Voltage (Device Model) TAMB -25°C -500 500 V

1.4 Normal Operating Conditions

Parameter Description Minimum Standard Maximum Unit
Ta Operating Temperature -20 - 85 °C
Ta Operating Temperature -40 - 105 °C
VD33 Supply Voltage 3.0 3.3 3.6 V
V-OL IO Output Low Voltage - - 0.4 V
V-OH IO Output High Voltage 2.4 - - V
V-IL IO Input Low Voltage - - 0.8 V
V-IH IO Input High Voltage 2.0 - - V
I-IL Input Leakage Current -10 ±1 10 uA

3 Product Technical Documentation

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