Application Scenario: Smart Home Appliances


Input Voltage: 2.7V ~ 3.3V



Dual-core CPU with ARM v8-M architecture.

Performance core KM4:Cortex-M33 with main frequency up to 200MHz.

Energy Efficiency Core KM0:Cortex-M23 with main frequency up to 20MHz.

Deep Sleep、Deep Standby and Sleep mode.

SWD/JTAG simulation debugging interface.



512K bytes SRAM for KM4 core

64K bytes SRAM for KM0 core

XIP flash memory from 2M to 8M bytes

Selection of Large Capacity PSRAM Storage



IEEE 802.11 b/g/n 1T1R 2.4GHz Single frequency

802.11 a/b/g/n 1T1R 2.4/5GHz dual frequency.

Processing Wi-Fi messages using independent Microcontrollers.

Support low power TX/RX mode in short distance applications.

Support narrow-band mode: 10MHz bandwidth.

Support Antenna diversity.

Support IEEE Power Save Model


BT 5.0 Low Energy:

Comply with Low Power Bluetooth 5.0 Standard.

Support high power mode (10dbm).

Wi-Fi and BLE time division multiplexing and share the same PA and antenna.

Support Bluetooth Master-Slave Mode and BLE Mesh



16 x GPIO (6 x Wakeup Pins, 3 x ADC channel)

1 x SPI

1 x I2C

8 x PWM

5 x Timer

2 x UART,Supporting Hardware Flow Control.)

1 x USI,can be set as UART、SPI or I2C


Infrared Transceiver

DMIC Digital Microphone Interface

SGPIO Single Line Communication

4x2/3x3 Matrix Keyboard

USB Host/Device


Operating Temperature:-30℃ to +85℃


Antenna Type:

On-Board PCB Antenna,or IPEX Connector


Applications and Functions:

Support AliOS Operating System and MXOS Development Platform

Provide access to major cloud platforms and Bluetooth Mesh networking protocol stack

Bluetooth/Wi-Fi Gateway Device for Internet of Things Applications


Interfaces and Dimensions:

Maintain pin compatibility with similar packaging modules

EMC3280:18mm x 33mm, stamp hole or pin

Support external antenna or board antenna



ARM Trust Zone-M Technology.

AES/SHA Hardware Accelerator, Random Number Generator

Security boot Safe Start


Anti-reading mechanism: JTAG interface protection, flash encryption technology.


Hardware Architecture:


Document Download:



EMC328x series modules are mainly used in high performance modules of Wi-Fi/BLE gateway applications in the Internet of Things. It has a dual-core microcontroller with ultra-high integration, supports 2.4 GHz Wi-Fi and BLE 5.0 wireless communication technology, and contains large capacity Flash, RAM to meet the data transmission, storage and protocol of various Internet of Things gateway.