LA66701 Reset & Teardown (FCC ID 2AB2Q-LA66701)

LA66701 Module User Manual 
1. Introduction 

1.1 Overview 

The LA66701 is a Le edarson-developed universal Wi-Fi and Bluetooth SMART (BLE) combo module. It use s the 
Espressif Inc. ESP32-C3 System in Package that integrates an embedded 4MB flash. 

Figure 1.1. LA02301 Module 

The LA02301 module is designed for a variety of IOT products such as Power Drivers, Sensors, Plugs, Lighting, 
Switches, etc. 

 Plug Switch Sensor Down Light Power Driver 

Figure 1.2. Product Application 

1.2 Key features 

 Embedded a RISC-V 32 bit MCU, with clock up to 160MHz 
 Data Memory: 4MB internal Flash and 384KB internal ROM 
 Power supply voltage: 3.0V～3.6V 
 Operating temperature: -40～105 Deg-C 
 Frequency of crystal oscillator: 40MHz 
 Operating frequency: 2400～2483.5MHz 
 Support WIFI 802.11b/g/n up to 150Mbps 
Compliant with Bluetooth LE specifications 
Wi-Fi 802.11 b/g/n and BLE can’t transmission simultaneous 

1.3 Block Diagram 

The LA02301 module is a highly-integrated, high-performance system with all the hardware components needed 
to enable 2.4GHz wireless connectivity and support Wi-Fi and BLE protocols. 

Built around the ESP32 -U4WDH Wireless SoC, the LA02301 includes a built -in PCB trace antenna, supply 
decoupling and filtering components, a 40MHz reference crystal, a 32.768KHz crystal, and an RF shield. A general 
block diagram of the module is shown as below. 

 Figure 1.3. LA66701 Block Diagram 

1.4 Power Supply 

The LA66701 requires a single nominal supply level of 3.3V. All the necessary decoupling and filtering components 
are included in the module. The supply voltage noise tolerance of the module should be less than 100mVpp and 
the supply current should be more than 500mA. 

1.5 Module Certification Information 

Table 1.1. Module Certification Information 

Module Certification Type Certification Information 
LA66701 
FCC 2AB2Q-LA66701 
IC 10256A-LA66701 

2. Electrical characteristics 2.1 Absolute maximum ratings 

Stresses above those listed below may cause permanent damage to the device. This is a stress rating only and 
functional operation of the devices at those or any conditions above those indicated in the operation listing of 
this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device 
reliability. 
Table 2.1. Absolute maximum ratings 

Symbol Parameter Min. Max. Units 
VCC Power Supply -0.3 +3.6 V 

GND Ground of Module 

0 V 
VIO Voltage of Module IO -0.3 +3.6 V 
Storage temperature 

-40 +105 Deg-C 
MSL Moisture Sensitivity Level 3 

ESD HBM Human Body Mode 

±2 KV 
ESD CDM Charge Device Mode 

±1 V 

2.2 General Operating Conditions 

This table specifies the general operating temperature range and supply voltage range for all supplies, the 
minimum and maximum values of all other tables are specified over this operating range, unless otherwise noted. 

Table 2.2. General Operating Conditions 

Symbol Parameter Min. Typ. Max. Units 
VCC Supply voltage, normal 3.0 ...