1.1 Features 1

• Microcontroller

– Powerful ARM® Cortex®-M3 With Code Prefetch

– Up to 32-MHz Clock Speed

– 512KB, 256KB or 128KB of In-System-

Programmable Flash

– Supports On-Chip Over-the-Air Upgrade (OTA)

– Supports Dual ZigBee Application Profiles

– Up to 32KB of RAM (16KB With Retention in All

Power Modes)

– cJTAG and JTAG Debugging

• RF

– 2.4-GHz IEEE 802.15.4 Compliant RF

Transceiver

– Excellent Receiver Sensitivity of –97 dBm

– Robustness to Interference With ACR of 44 dB

– Programmable Output Power up to 7 dBm

• Security Hardware Acceleration

– Future Proof AES-128/256, SHA2 Hardware

Encryption Engine

– Optional – ECC-128/256, RSA Hardware

Acceleration Engine for Secure Key Exchange

– Radio Command Strobe Processor and Packet

Handling Processor for Low-Level MAC

Functionality

• Low Power

– Active-Mode RX (CPU Idle): 20 mA

– Active-Mode TX at 0 dBm (CPU Idle): 24 mA

– Power Mode 1 (4-μs Wake-Up, 32-KB RAM

Retention, Full Register Retention): 0.6 mA

– Power Mode 2 (Sleep Timer Running, 16-KB

RAM Retention, Configuration Register

Retention): 1.3 μA

– Power Mode 3 (External Interrupts, 16-KB RAM

Retention, Configuration Register Retention):

0.4 μA

– Wide Supply-Voltage Range (2 V to 3.6 V)

• Peripherals

– μDMA

– 4 × General-Purpose Timers

(Each 32-Bit or 2 × 16-Bit)

– 32-Bit 32-kHz Sleep Timer

– 12-Bit ADC With 8 Channels and Configurable

Resolution

– Battery Monitor and Temperature Sensor

– USB 2.0 Full-Speed Device (12 Mbps)

– 2 × SPI

– 2 × UART

– I2C

– 32 General-Purpose I/O Pins

(28 × 4 mA, 4 × 20 mA)

– Watchdog Timer

• Layout

– 8-mm × 8-mm QFN56 Package

– Robust Device for Industrial Operation up to

125°C

– Few External Components

– Only a Single Crystal Needed for Asynchronous

Networks

• Development Tools

– CC2538 Development Kit

– Reference Design Certified Under FCC and

ETSI Regulations

– Full Software Support for Contiki/6LoWPAN,

Smart Grid, Lighting, and ZigBee Home

Automation With Sample Applications and

Reference Designs Available

– Code Composer Studio™

– IAR Embedded Workbench® for ARM

– SmartRF™ Studio

– SmartRF Flash Programmer

1.2 Applications

• Smart Grid and Home Area Network

• Home and Building Automation

• Intelligent Lighting Systems

• Wireless Sensor Networks

• Internet of Things

1.3 Description

The CC2538xFnn is the ideal wireless microcontroller System-on-Chip (SoC) for high-performance ZigBee

applications. The device combines a powerful ARM Cortex-M3-based MCU system with up to 32KB onchip

RAM and up to 512KB on-chip flash with a robust IEEE 802.15.4 radio. This enables the device to

handle complex network stacks with security, demanding applications, and over-the-air download. Thirtytwo

GPIOs and serial peripherals enable simple connections to the rest of the board. The powerful

hardware security accelerators enable quick and efficient authentication and encryption while leaving the

CPU free to handle application tasks. The multiple low-power modes with retention enable quick startup

from sleep and minimum energy spent to perform periodic tasks. For a smooth development, the

CC2538xFnn includes a powerful debugging system and a comprehensive driver library. To reduce the

application flash footprint, CC2538xFnn ROM includes a utility function library and a serial boot loader.

Combined with the robust and comprehensive Z-Stack software solutions from TI, the CC2538 provides

the most capable and proven ZigBee solution in the market.