Features
Includes ST state-of-the-art patented
technology
• Core: Arm® 32-bit Cortex®-M4 CPU with FPU,
Adaptive real-time accelerator (ART
Accelerator) allowing 0-wait-state execution
from Flash memory, frequency up to 170 MHz
with 213 DMIPS, MPU, DSP instructions
• Operating conditions:
– VDD, VDDA voltage range:
1.71 V to 3.6 V
• Mathematical hardware accelerators
– CORDIC for trigonometric functions
acceleration
– FMAC: filter mathematical accelerator
• Memories
– 128 Kbytes of Flash memory with ECC
support, proprietary code readout
protection (PCROP), securable memory
area, 1 Kbyte OTP
– 22 Kbytes of SRAM, with hardware parity
check implemented on the first 16 Kbytes
– Routine booster: 10 Kbytes of SRAM on
instruction and data bus, with hardware
parity check (CCM SRAM)
• Reset and supply management
– Power-on/power-down reset
(POR/PDR/BOR)
– Programmable voltage detector (PVD)
– Low-power modes: sleep, stop, standby
and shutdown
– VBAT supply for RTC and backup registers
• Clock management
– 4 to 48 MHz crystal oscillator
– 32 kHz oscillator with calibration
– Internal 16 MHz RC with PLL option (± 1%)
– Internal 32 kHz RC oscillator (± 5%)
• Up to 86 fast I/Os
– All mappable on external interrupt vectors
– Several I/Os with 5 V tolerant capability
• Interconnect matrix
• 12-channel DMA controller
• 2 x ADCs 0.25 μs (up to 23 channels).
Resolution up to 16-bit with hardware
oversampling, 0 to 3.6 V conversion range
• 4 x 12-bit DAC channels
– 2 x buffered external channels 1 MSPS
– 2 x unbuffered internal channels 15 MSPS
• 4 x ultra-fast rail-to-rail analog comparators
• 3 x operational amplifiers that can be used in
PGA mode, all terminals accessible
• Internal voltage reference buffer (VREFBUF)
supporting three output voltages (2.048 V,
2.5 V, 2.9 V)
• 14 timers:
– 1 x 32-bit timer and 2 x 16-bit timers with up
to four IC/OC/PWM or pulse counter and
quadrature (incremental) encoder input
– 2 x 16-bit 8-channel advanced motor
control timers, with up to 8 x PWM
channels, dead time generation and
emergency stop
– 1 x 16-bit timer with 2 x IC/OCs, one
OCN/PWM, dead time generation and
emergency stop
– 2 x 16-bit timers with IC/OC/OCN/PWM,
dead time generation and emergency stop
– 2 x watchdog timers (independent, window)
– 1 x SysTick timer: 24-bit downcounter
– 2 x 16-bit basic timers
– 1 x low-power timer
• Calendar RTC with alarm, periodic wakeup
from stop/standby
• Communication interfaces
– 1 x FDCAN controller supporting flexible
data rate
– 3 x I2C Fast mode plus (1 Mbit/s) with
20 mA current sink, SMBus/PMBus,
wakeup from stop
– 4 x USART/UARTs (ISO 7816 interface,
LIN, IrDA, modem control)
– 1 x LPUART
– 3 x SPIs, 4 to 16 programmable bit frames,
2 x with multiplexed half duplex I2S
interface
– 1 x SAI (serial audio interface)
– USB 2.0 full-speed interface with LPM and
BCD support
– IRTIM (infrared interface)
– USB Type-C™ /USB power delivery
controller (UCPD)
• True random number generator (RNG)
• CRC calculation unit, 96-bit unique ID
• Development support: serial wire debug
(SWD), JTAG, Embedded Trace Macrocell™