Name: XCC3550ENJARSHR
Brand: Texas Instruments
SKU: XCC3550ENJARSHR

The SimpleLink™ Wi-Fi system-on-chip CC35xx family is where affordability meets reliability, enabling engineers to connect more applications with confidence. CC35xx are single-chip Wi-Fi 6 and Bluetooth Low Energy 5.4 wireless microcontrollers (MCUs). The CC3550E and CC3551E are the first dual-band devices in this pin-to-pin compatible family.

CC3550E: 2.4GHz and 5GHz Wi-Fi 6 wireless MCU
CC3551E: 2.4GHz and 5GHz Wi-Fi 6 and Bluetooth low energy 5.4 wireless MCU

The CC355xE offers the latest standards from Wi-Fi and BLE while maintaining compatibility with Wi-Fi 4 (802.11 b/g/n) and Wi-Fi 5 (802.11 ac). These CC355xE are the 10th-generation connectivity combo chip from Texas Instruments. As such, the CC355xE is based on proven technology. These devices are an excellent choice to use in cost-sensitive embedded applications with RTOS software. CC355xE brings the efficiency of Wi-Fi 6 to embedded device applications for the Internet of Things (IoT), with a small PCB footprint and highly optimized bill of materials.

Microcontroller

Powerful 160MHz Arm Cortex-M33 processor with FPU, TrustZone, and AI acceleration
High-speed quad-SPI and octal-SPI for XiP flash with on-the-fly decryption
Flexible configuration of low-latency TCM (up to 32KB) and Cache (32KB or 64KB) for improved code execution performance
Over 1MB embedded SRAM including 128KB TCM for Wi-Fi, BLE, networking, and application data

Peripherals

Up to 38 I/Os with flexible multiplexing options
8 × general-purpose timers and pulse-width modulation (PWM)
2 × universal asynchronous receiver-transmitter (UART)
2 × Serial Peripheral Interface (SPI)
2 × inter-integrated circuit (I2C)
Inter-IC sound (I2S)
Pulse density modulation (PDM)
Secure digital and multimedia card (SD/MMC)
Secure digital input output (SDIO) 2.0
Controller area network (CAN) 2.0
8-channel, 12-bit analog-to-digital converter (ADC)

System Services

Direct memory access (DMA)
One-time-programmable memory (OTP)
Real-time clock (RTC) and watchdog timer (WDT)

Radio

Wi-Fi 6 (802.11ax)
- 2.4GHz and 5GHz, single-stream 20MHz channels with application throughput up to 20Mbps (UDP)
- Compatible with IEEE 802.11 b/g/n/ax
  - Orthogonal frequency-division multiple access (OFDMA)
  - Target wake time (TWT)
  - Trigger frames
  - Basic service set (BSS) color
- Integrated PA for a complete WLAN system with up to 20dBm output power at 1 DSSS
- Role support: STA, softAP with up to four stations, Wi-Fi direct, multi-role AP + STA
- Support for personal and enterprise Wi-Fi security: WPA and WPA2 PSK, WPA2 Enterprise, WPA3 personal or enterprise
- Wi-Fi TX Power:
- - 20dBm at 1 DSSS
  - 16dBm at 54 OFDM
- Wi-Fi RX Sensitivity:
  - –98.6dBm at 1 DSSS
  - –77.2dBm at 54 OFDM
Bluetooth low energy
- Bluetooth low energy 5.4 certified stack
- Supports long-range and high-speed PHYs (up to 2Mbps)

Security Features

ARM TrustZone
Hardware security module supporting all of the following:
- ECC, RSA, AES, SHA2/3, MD5, CRC 16/32, and TRNG
- Secure key storage
Initial secure programming
Secure boot
Software IP and cloning protection
Debug security through JTAG and debug port lock
OTP with the ability to program root-of-trust public key
Secure over-the-air (OTA) updates
Anti-rollback protection

Clock Source

52MHz crystal
Internal 32.768kHz low-frequency oscillator, external XTAL, or slow clock options

Power Management

Support for 3.3V and 1.8V on multiple I/O domains
Supplies: VPA: 3.3V, VMAIN: 1.8V, VIO: 1.8/3.3V

Key Benefits

Complete software development kit with open-source TCP/IP and TLS stacks
Operating temperature: –40°C to +105°C
Support for 3-wire PTA coexistence interface for use with external 2.4GHz radios (for example Thread or Zigbee)
Antenna selection capability

Package