SWRS205A March 2017  – June 2017 CC3120MOD


  1. Module Overview
    1. 1.1Features
    2. 1.2Applications
    3. 1.3Description
    4. 1.4Functional Block Diagrams
  2. Revision History
  3. Device Comparison
    1. 3.1Related Products
  4. Terminal Configuration and Functions
    1. 4.1CC3120MOD Pin Diagram
    2. 4.2Pin Attributes
    3. 4.3Connections for Unused Pins
  5. Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Current Consumption Summary
    5. 5.5 TX Power and IBAT versus TX Power Level Settings
    6. 5.6 Brownout and Blackout Conditions
    7. 5.7 Electrical Characteristics
    8. 5.8 WLAN Receiver Characteristics
    9. 5.9 WLAN Transmitter Characteristics
    10. 5.10Reset Requirement
    11. 5.11Thermal Resistance Characteristics for MOB Package
    12. 5.12Timing and Switching Characteristics
      1. 5.12.1Power-Up Sequencing
      2. 5.12.2Power-Down Sequencing
      3. 5.12.3Device Reset
      4. 5.12.4Wakeup From HIBERNATE Mode Timing
    13. 5.13External Interfaces
      1. 5.13.1SPI Host Interface
      2. 5.13.2Host UART Interface
        1. UART Topology
        2. UART Topology
        3. UART Topology
      3. 5.13.3External Flash Interface
  6. Detailed Description
    1. 6.1Overview
    2. 6.2Module Features
      1. 6.2.1WLAN
      2. 6.2.2Network Stack
      3. 6.2.3Host Interface and Driver
      4. 6.2.4System
    3. 6.3Power-Management Subsystem
      1. 6.3.1VBAT Wide-Voltage Connection
    4. 6.4Low-Power Operating Modes
      1. 6.4.1Low-Power Deep Sleep
      2. 6.4.2Hibernate
      3. 6.4.3Shutdown
    5. 6.5Restoring Factory Default Configuration
    6. 6.6Device Certification and Qualification
      1. 6.6.1FCC Certification and Statement
      2. 6.6.2Industry Canada (IC) Certification and Statement
      3. 6.6.3ETSI/CE Certification
      4. 6.6.4Japan MIC Certification
      5. 6.6.5SRRC Certification and Statement
    7. 6.7Module Markings
    8. 6.8End Product Labeling
    9. 6.9Manual Information to the End User
  7. Applications, Implementation, and Layout
    1. 7.1Application Information
      1. 7.1.1Typical Application
      2. 7.1.2Power Supply Decoupling and Bulk Capacitors
      3. 7.1.3Reset
      4. 7.1.4Unused Pins
    2. 7.2PCB Layout Guidelines
      1. 7.2.1General Layout Recommendations
      2. 7.2.2RF Layout Recommendations
      3. 7.2.3Antenna Placement and Routing
      4. 7.2.4Transmission Line Considerations
  8. Environmental Requirements and Specifications
    1. 8.1Temperature
      1. 8.1.1PCB Bending
    2. 8.2Handling Environment
      1. 8.2.1Terminals
      2. 8.2.2Falling
    3. 8.3Storage Condition
      1. 8.3.1Moisture Barrier Bag Before Opened
      2. 8.3.2Moisture Barrier Bag Open
    4. 8.4Baking Conditions
    5. 8.5Soldering and Reflow Condition
  9. Device and Documentation Support
    1. 9.1Device Nomenclature
    2. 9.2Development Tools and Software
    3. 9.3Firmware Updates
    4. 9.4Documentation Support
      1. 9.4.1Community Resources
    5. 9.5Trademarks
    6. 9.6Electrostatic Discharge Caution
    7. 9.7Export Control Notice
    8. 9.8Glossary
  10. 10Mechanical, Packaging, and Orderable Information
    1. 10.1Mechanical, Land, and Solder Paste Drawings
    2. 10.2Package Option Addendum
      1. 10.2.1Packaging Information
    3. 10.3Tape and Reel Information
      1. 10.3.1Tape and Reel Specification

Module Overview


  • The CC3120MOD is a Wi-Fi® Module Which Includes the CC3120RNMARGK Wi-Fi Network Processor (NWP). The Fully Integrated, Industrial Temperature Grade, Green Module Includes All Required Clocks, Serial Peripheral Interface (SPI) Flash, and Passives.
  • FCC, IC, CE, MIC, and SRRC Certified
  • Wi-Fi CERTIFIED™ Modules, With Ability to Request Certificate Transfer for Wi-Fi Alliance Members
  • Featuring a Dedicated Internet-on-a chip™ Wi-Fi NWP Which Completely Offloads Wi-Fi and Internet Protocols from the Application MCU
  • Wi-Fi Modes
    • 802.11b/g/n Station
    • 802.11b/g/n Access Point (AP) Supporting up to Four Stations
    • Wi-Fi Direct® Client/Group Owner
  • WPA2 Personal and Enterprise Security: WEP, WPA/WPA2 PSK, WPA2 Enterprise (802.1x)
  • IPv4 and IPv6 TCP/IP Stack
    • Industry-Standard BSD Socket Application Programming Interfaces (APIs)
      • 16 Simultaneous TCP or UDP Sockets
      • 6 Simultaneous TLS and SSL Sockets
  • IP Addressing: Static IP, LLA, DHCPv4, and DHCPv6 With Duplicate Address Detection (DAD)
  • SimpleLink™ Connection Manager for Autonomous and Fast Wi-Fi Connections
  • Flexible Wi-Fi Provisioning With SmartConfig™ Technology, AP Mode, and WPS2 Options
  • RESTful API Support Using Internal HTTP Server
  • Wide Set of Security Features
    • Hardware Features
      • Separate Execution Environments
      • Device Identity
    • Networking Security
      • Personal and Enterprise Wi-Fi Security
      • Secure Sockets (SSLv3, TLS1.0/1.1/TLS1.2)
      • HTTPS Server
      • Trusted Root-Certificate Catalog
      • TI Root-of-Trust Public key
    • Software IP Protection
      • Secure Key Storage
      • File System Security
      • Software Tamper Detection
      • Cloning Protection
  • Embedded Network Applications Running on a Dedicated NWP
    • HTTP/HTTPS Web Server With Dynamic User Callbacks
    • mDNS, DNS-SD, DHCP Server
    • Ping
  • Recovery Mechanism – Ability to Recover to Factory Defaults
  • Wi-Fi TX Power
    • 17.0 dBm at 1 DSSS
    • 13.5 dBm at 54 OFDM
  • Wi-Fi RX Sensitivity
    • –95.0 dBm at 1 DSSS
    • –73.5 dBm at 54 OFDM
  • Application Throughput
    • UDP: 16 Mbps
    • TCP: 13 Mbps
  • Power-Management Subsystem
    • Integrated DC-DC Converters Support a Wide Range of Supply Voltage:
      • VBAT Wide-Voltage Mode: 2.3 V to 3.6 V
      • Advanced Low-Power Modes
        • Shutdown: 1 μA
        • Hibernate: 5 μA
        • Low-Power Deep Sleep (LPDS): 115 μA
        • RX Traffic: 59 mA at 54 OFDM
        • TX Traffic: 229 mA at 54 OFDM, Maximum Power
        • Idle Connected (MCU in LPDS): 690 μA at DTIM = 1
    • Additional Integrated Components on Module
      • 40.0-MHz Crystal With Internal Oscillator
      • 32.768-kHz Crystal (RTC)
      • 32-Mbit SPI Serial Flash
      • RF Filter and Passive Components
    • LGA Package
      • 1.27-mm Pitch, 63-Pin, 20.5-mm × 17.5-mm LGA Package for Easy Assembly and Low-Cost PCB Design
    • Operating Temperature
      • Ambient Temperature Range:40°C to +85°C
    • Module Supports SimpleLink Developers Ecosystem


    • For Internet-of-Things (IoT) applications, such as:
      • Cloud Connectivity
      • Internet Gateway
      • Home and Building Automation
      • Appliances
      • Access Control
      • Security Systems
      • Smart Energy
      • Industrial Control
      • Smart Plug and Metering
      • Wireless Audio
      • IP Network Sensor Nodes
      • Asset Tracking
      • Medical Devices


    Add Wi-Fi® to low-cost, low-power MCU for IoT applications. The CC3120MOD is an FCC, IC, CE, MIC, SRRC, and Wi-Fi CERTIFIED™ module that is part of the new SimpleLink Wi-Fi family, which dramatically simplifies the implementation of Internet connectivity. The CC3120MOD integrates all protocols for Wi-Fi and Internet, which greatly minimize host MCU software requirements. With built-in security protocols, the CC3120MOD solution provides a robust and simple security experience. Additionally, the CC3120MOD is a complete platform solution including various tools and software, sample applications, user and programming guides, reference designs, and the TI E2E™ support community. The CC3120MOD is available in an LGA package that is easy to lay out with all required components including serial Flash, RF filter, crystal, and passive components that are fully integrated.

    The Wi-Fi network processor subsystem features a Wi-Fi Internet-on-a-chip and contains an additional dedicated ARM® MCU that off-loads many of the networking activities from the host MCU. This subsystem includes an 802.11 b/g/n radio, baseband, and MAC with a powerful crypto engine for fast, secure Internet connections with 256-bit encryption. The CC3120MOD module supports station, access point, and Wi-Fi direct modes. The module supports WPA2 personal and enterprise security. This subsystem includes embedded TCP/IP, TLS/SSL stacks, an HTTP server, and multiple Internet protocols. The CC3120MOD module supports a variety of Wi-Fi provisioning methods, including HTTP based on AP mode, SmartConfig™ technology, and WPS2.0.

    As part of TI’s SimpleLink Wi-Fi family second generation, the CC3120MOD module introduces the new features and enhanced capabilities, such as the following:

    • IPv6
    • Enhanced Wi-Fi provisioning
    • Optimized low-power management
    • Wi-Fi AP connection with up to four stations
    • More concurrently opened BSD sockets and up to 16 BSD sockets, of which 6 are secure
    • HTTPS support
    • RESTful API support
    • Asymmetric keys
    • Crypto library

    The power-management subsystem includes an integrated DC-DC converter with support for a wide range of supply voltages. This subsystem enables low-power consumption modes such as hibernate with RTC and shutdown, which requires approximately 5 µA and 1 μA of current, respectively.The CC3120MOD module is delivered with a slim and user-friendly host driver to simplify the integration and development of network applications. The host driver can easily be ported to most platforms and operating systems (OS). It is written in strict ANSI-C (C99) and requires minimal platform adaptation layer (porting layer). The CC3120MOD module can connect to any 8-, 16-, or 32-bit MCU over the SPI or UART Interface. The device driver minimizes the host memory footprint requirements of less than 7KB of code memory and 700B of RAM for a TCP client application.

    The CC3120MOD module is part of the SimpleLink™ microcontroller (MCU) platform which consists of Wi-Fi, Bluetooth® low energy, Sub-1 GHz and host MCUs, which all share a common, easy-to-use development environment with a single core software development kit (SDK) and rich tool set. A one-time integration of the SimpleLink platform enables you to add any combination of the portfolio’s devices into your design, allowing 100 percent code reuse when your design requirements change.

    The CC3120MOD modules comes in an easy-to-layout LGA package and is delivered as a complete platform solution including various tools and software, sample applications, user and programming guides, reference designs, and the TI E2E™ support community. The module family is also part of the SimpleLink MCU portfolio and supports the SimpleLink developers ecosystem. For more information, visit www.ti.com/SimpleLink.

    Table 1-1 Module Information(1)

    CC3120MODRNMMOBRMOB (63)20.5 mm × 17.5 mm
    For more information, see Section 10.

    Functional Block Diagrams

    Figure 1-1 shows the functional block diagram of the CC3120MOD module.

    CC3120MOD fig1-1.gif Figure 1-1 CC3120MOD Module Functional Block Diagram

    Figure 1-2 shows the CC3120 hardware overview.

    CC3120MOD hd_fbd_SWRS205.gif Figure 1-2 CC3120 Hardware Overview

    Figure 1-3 shows an overview of the CC3120 embedded software.

    CC3120MOD CC31x0_SW_FBD.gif Figure 1-3 CC3120 Embedded Software Overview