· Microcontroller
§ Powerful 48-MHz Arm Cortex-M4F processor
§ EEMBC CoreMark score: 148
§ 352KB of in-system programmable flash
§ 256KB of ROM for protocols and library functions
§ 8KB of cache SRAM (alternatively available as general-purpose RAM)
§ 80KB of ultra-low leakage SRAM. The SRAM is protected by parity to ensure high reliability of operation.
§ 2-pin cJTAG and JTAG debugging
§ Supports over-the-air (OTA) update
· Ultra-low power sensor controller with 4KB of SRAM
§ Sample, store, and process sensor data
§ Operation independent from system CPU
§ Fast wake-up for low-power operation
· TI-RTOS, drivers, bootloader, Bluetooth 5.2 low energy controller, and IEEE 802.15.4 MAC in ROM for optimized application size
· RoHS-compliant package
§ 7-mm × 7-mm RGZ VQFN48 (26 GPIOs)
· Peripherals
§ Digital peripherals can be routed to any GPIO
§ 4× 32-bit or 8× 16-bit general-purpose timers
§ 12-bit ADC, 200 kSamples/s, 8 channels
§ 2× comparators with internal reference DAC (1× continuous time, 1× ultra-low power)
§ Programmable current source
§ 2× UART
§ 2× SSI (SPI, MICROWIRE, TI)
§ I2C and I2S
§ Real-time clock (RTC)
§ AES 128- and 256-bit cryptographic accelerator
§ ECC and RSA public key hardware accelerator
§ SHA2 accelerator (full suite up to SHA-512)
§ True random number generator (TRNG)
§ Capacitive sensing, up to 8 channels
§ Integrated temperature and battery monitor
· External system
§ On-chip buck DC/DC converter
· Low power
§ Active mode RX: 6.9 mA
§ Active mode TX 0 dBm: 7.3 mA
§ Active mode TX 5 dBm: 9.6 mA
§ Active mode TX at +10 dBm: 22 mA
§ Active mode TX at +20 dBm: 85 mA
§ Active mode MCU 48 MHz (CoreMark): 3.4 mA (71 µA/MHz)
§ Sensor controller, low power-mode, 2 MHz, running infinite loop: 30.1 µA
§ Sensor controller, active mode, 24 MHz, running infinite loop: 808 µA
§ Standby: 0.94 µA (RTC on, 80KB RAM and CPU retention)
§ Shutdown: 150 nA (wakeup on external events)
· Radio section
§ EN 300 328, (Europe)
§ EN 300 440 Category 2
§ FCC CFR47 Part 15
§ ARIB STD-T66 (Japan)
§ 2.4 GHz RF transceiver compatible with Bluetooth 5.2 Low Energy and earlier LE specifications and IEEE 802.15.4 PHY and MAC
§ 3-wire, 2-wire, 1-wire PTA coexistence mechanisms
§ Excellent receiver sensitivity: -100 dBm for 802.15.4 (2.4 GHz), -105 dBm for Bluetooth 125-kbps (LE Coded PHY)
§ Output power up to +20 dBm with temperature compensation
§ Suitable for systems targeting compliance with worldwide radio frequency regulations
· Wireless protocols
§ Thread, Zigbee , Bluetooth 5.2 Low Energy, IEEE 802.15.4, IPv6-enabled smart objects (6LoWPAN), proprietary systems, SimpleLink™ TI 15.4 stack (2.4 GHz), and dynamic multiprotocol manager (DMM) driver.
