User's Manual

Proprietary & Confidential Information
iotTech Corporation, Taiwan
Doc. NO:
ITM-FCC3F1 User Manual
1. General Description
iTM-FCCF31 module features a fully integrated 2.4GHz radio transceiver and baseband
processor for Wi-Fi 802.11b and Bluetooth® Smart applications. It can be used as a standalone
application-specific communication processor or as a wireless data link in hosted MCU systems
where ultra-low power is critical. It supports flexible memory architecture for storing profiles,
stacks and custom application codes, and can be updated using Over-The-Air (OTA)
technology. Qualified Bluetooth Smart protocol stack and Wi-Fi TCP/IP stack are stored in a
dedicated ROM.
iTM-FCC3F1 module uses OPULINKS OPL1000 SoC. It is equipped with dual processors,
ARM® Cortex® -M0 and M3, for handling different processes. All software runs on the ARM®
Cortex® -M0 processor while more intensive application-specific activities run on the ARM®
Cortex®-M3 processor. iTM-FCC3F1 can be connected to any external MCU through SPI, I2C or
UART interfaces and sensors or other devices through GPIOs. The transceiver interfaces directly
to the antenna and is fully compliant with the Wi-Fi 802.11b and Bluetooth 5.0 BLE standards.
With integrated antenna switch, RF balun, power amplifier (PA) and low noise amplifier (LNA),
the OPL1000 allows both Wi-Fi and Bluetooth Smart to minimize PCB design area and external
component requirement. The block diagram for OPL1000 is shown as below.