32-bit microcontroller CC2640R2F

for wireless transmissioncommunicationlow-power

Overview
The CC2640R2F is a 2.4 GHz wireless microcontroller (MCU) optimized for low‑power Bluetooth® Low Energy 5.1 and proprietary 2.4 GHz protocols. It is designed for advanced sensing and energy‑constrained wireless applications such as building security, HVAC, asset tracking, medical and industrial sensors requiring long battery life and reliable RF performance.

Key features

• Bluetooth® 5.1 support: LE Coded PHY (Long Range), LE 2‑Mbit PHY, Advertising Extensions, multiple advertisement sets; backward compatible with earlier LE specs
• SimpleLink™ CC2640R2F SDK with fully qualified Bluetooth® 5.1 stack
• Ultra‑low standby current: 1.1 µA with full RAM retention
• Autonomous ultra‑low‑power Sensor Controller CPU for ultra low‑power sampling and event handling
• Dedicated radio controller (Arm® Cortex®‑M0) for low‑power RF control and multiple PHY operation
• High receiver sensitivity and RF robustness (down to −103 dBm for 125‑kbps LE Coded PHY)

Microcontroller

• CPU core: Arm® Cortex®‑M3, up to 48 MHz
• Flash: 128 kB in‑system programmable (device family includes larger nonvolatile totals)
• RAM: 28 kB (including 20 kB ultra‑low leakage SRAM)
• Debug: 2‑pin cJTAG and JTAG; OTA firmware upgrade supported
• EEMBC CoreMark: 142

Peripherals

• 1 × UART; 2 × SPI (SSI); I2C and I2S
• 12‑bit ADC, 200 ksps, 8‑channel analog MUX
• Continuous‑time and ultra‑low‑power analog comparators; programmable current source
• Real‑Time Clock (RTC); AES‑128 accelerator and TRNG
• Support for up to eight capacitive‑sensing buttons; integrated temperature sensor

GPIO and packages

• GPIO options by package: 10, 14, 15 or 31
• All digital peripheral pins can be routed to any GPIO for flexible hardware design

Package | Pins | Size
DSBGA (YFV) — 34 pins — 2.59 × 2.59 mm (≈ 6.7081 mm²)
VQFN (RGZ) — 48 pins — 7 × 7 mm (≈ 49 mm²)
VQFN (RHB) — 32 pins — 5 × 5 mm (≈ 25 mm²)
VQFN (RSM) — 32 pins — 4 × 4 mm (≈ 16 mm²)

Security

• Cryptographic acceleration and AES‑128 hardware module
• True Random Number Generator (TRNG)
• Device attestation/anti‑counterfeit and secure debug/IP protection

Power and low‑power modes

• Supply voltage: normal operation 1.8–3.8 V; external regulator mode 1.7–1.95 V
• Active RX: ~5.9 mA; TX @0 dBm: ~6.1 mA; TX @+5 dBm: ~9.1 mA
• Active MCU: ~61 µA/MHz; sensor controller: 0.4 mA + 8.2 µA/MHz
• Standby with RTC and RAM/CPU retention: 1.1 µA; Shutdown: 100 nA (wake on external events)

RF section

• 2.4 GHz RF transceiver compatible with Bluetooth® Low Energy 5.1 and earlier
• Receiver sensitivity: typically −97 dBm (BLE), down to −103 dBm for 125‑kbps LE Coded PHY
• Link budget up to 102 dB; programmable TX power up to +5 dBm; single‑ended or differential RF interface
• Designed for global RF regulatory compliance (ETSI, FCC, ARIB)

Development tools and ecosystem

• Full development kits and reference designs available
• Software: SimpleLink™ CC2640R2F SDK with royalty‑free BLE stack
• Tools: SmartRF™ Studio, Sensor Controller Studio, IAR Embedded Workbench, Code Composer Studio (IDE & Cloud)

Technical specifications

• Model: CC2640R2F
• CPU: Arm® Cortex®‑M3 up to 48 MHz
• Flash: 128 kB; RAM: 28 kB (20 kB ultra‑low leakage)
• ADC: 12‑bit, 200 ksps, 8 channels
• Peripherals: UART, SPI (2×), I2C, I2S, 4 timers, RTC, Sensor Controller
• GPIO options: 10 / 14 / 15 / 31
• RF: 2.4 GHz BLE 5.1, TX up to +5 dBm, sensitivity down to −103 dBm
• Power: 1.8–3.8 V (normal); standby 1.1 µA; shutdown 100 nA
• Operating temperature: −40 to +85 °C
• Security: AES‑128, TRNG, device attestation