CC3235S

• Multiple-core architecture, system-on-chip (SoC)
• 802.11 a/b/g/n: 2.4 GHz and 5 GHz
• FIPS 140-2 Level 1 Certification
• Multilayered security features, help developers protect identities, data, and software IP
• Low-Power Modes for battery powered application
• Coexistence with 2.4 GHz Radios
• Industrial temperature: –40°C to +85°C
• Wi-Fi CERTIFIED by the Wi-Fi Alliance
• Application microcontroller subsystem:
  • Arm Cortex-M4 core at 80 MHz
  • User-dedicated memory
    • 256KB RAM
    • Optional 1MB executable Flash
  • Rich set of peripherals and timers
  • 27 I/O pins with flexible multiplexing options
    • UART, I2S, I2C, SPI, SD, ADC, 8-bit parallel interface
    • Timers and PWM
• Wi-Fi network processor subsystem:
  • Wi-Fi core:
    • 802.11 a/b/g/n 2.4 GHz and 5 GHz
    • Modes:
      • Access Point (AP)
      • Station (STA)
      • Wi-Fi Direct (only supported on 2.4 GHz)
    • Security:
      • WEP
      • WPA™/ WPA2™ PSK
      • WPA2 Enterprise
      • WPA3™ Personal
  • Internet and application protocols:
    • HTTPs server, mDNS, DNS-SD, DHCP
    • IPv4 and IPv6 TCP/IP stack
    • 16 BSD sockets (fully secured TLS v1.2 and SSL 3.0)
  • Built-in power management subsystem:
    • Configurable low-power profiles (always, intermittent, tag)
    • Advanced low-power modes
    • Integrated DC/DC regulators
• Multilayered security features:
  • Separate execution environments
  • Networking security
  • Device identity and key
  • Hardware accelerator cryptographic engines (AES, DES, SHA/MD5, CRC)
  • Application-level security (encryption, authentication, access control)
  • Initial secure programming
  • Software tamper detection
  • Secure boot
  • Certificate signing request (CSR)
  • Unique per device key pair
• Application throughput:
  • UDP: 16 Mbps, TCP: 13 Mbps
  • Peak: 72 Mbps
• Power-Management Subsystem:
  • Integrated DC/DC converters support a wide range of supply voltage:
    • VBAT wide-voltage mode: 2.1 V to 3.6 V
    • VIO is always tied with VBAT
  • Advanced low-power modes:
    • Shutdown: 1 µA, hibernate: 4.5 µA
    • Low-power deep sleep (LPDS): 120 µA
    • Idle connected (MCU in LPDS): 710 µA
    • RX traffic (MCU active): 59 mA
    • TX traffic (MCU active): 223 mA
• Wi-Fi TX power:
  • 2.4 GHz: 18.0 dBm at 1 DSSS
  • 5 GHz: 18.1 dBm at 6 OFDM
• Wi-Fi RX sensitivity:
  • 2.4 GHz: –96 dBm at 1 DSSS
  • 5 GHz: –92 dBm at 6 OFDM
• Clock source:
  • 40.0-MHz crystal with internal oscillator
  • 32.768-kHz crystal or external RTC
• RGK package
  • 64-Pin, 9-mm × 9-mm very thin quad flat nonleaded (VQFN) package, 0.5-mm pitch
• Device supports SimpleLink™ MCU Platform Developer’s Ecosystem

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The dual-band wireless MCU CC3235x device comes in two variants, CC3235S and C3235SF.

• The CC3235S includes 256KB of RAM, IoT networking security, device identity/keys, as well as, MCU level security features such as file system encryption, user IP (MCU image) encryption, secure boot and debug security.
• The CC3235SF builds on the CC3235S and integrates a user-dedicated 1MB of executable flash in addition to the 256KB of RAM.

Simplify your IoT design with a Wi-Fi CERTIFIED™ wireless microcontroller (MCU). The SimpleLink™ Wi-Fi^® CC3235x device family is a dual-band system-on-chip (SoC) solution that integrates two processors within a single chip, including:

• Application processor: Arm^® Cortex^®-M4 MCU with a user-dedicated 256KB of RAM and an optional 1MB of executable flash
• Network processor to run all Wi-Fi and internet logical layers. This ROM-based subsystem completely offloads the host MCU and includes an 802.11 a/b/g/n dual-band 2.4 GHz and 5 GHz radio, baseband, and MAC with a powerful hardware cryptography engine

These devices introduce new capabilities that further simplify the connectivity of things to the Internet. The main new features include:

• 802.11a (5 GHz) support
• BLE/2.4 GHz radio coexistence
• Antenna selection
• Enhanced security with FIPS 140-2 Level 1 certification and more ⁽¹⁾
• Up to 16 concurrent secure sockets
• Certificate sign request (CSR)
• Online certificate status protocol (OCSP)
• Wi-Fi^® Alliance certified IoT power-saving features (such as DMS, proxy ARP, and so forth)
• Hostless mode for offloading template packet transmissions
• Improved fast scan

The CC3235x device family is part of the SimpleLink™ MCU platform—a common, easy-to-use development environment based on a single-core software development kit (SDK) with a rich tool set and reference designs. The E2E™ community supports Wi-Fi^®, Bluetooth low energy, Sub-1 GHz, and host MCUs. For more information, visit www.ti.com/simplelink or www.ti.com/simplelinkwifi.

⁽¹⁾For exact status of FIPS certification for a specific part number, please refer to https://csrc.nist.gov/publications/fips.