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STM32U073CBU6

STM32U073CBU6

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STM32U073CBT6

Ultra-low-power Arm Cortex-M0+ MCU with 128 Kbytes of Flash memory, LCD, USB, 56 MHz CPU

Supply Voltage Min Volt1.65
Supply Voltage Max Volt3.6
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
CoreArm Cortex-M0+
ECCN US3A991.a.2
ECCN EUNEC
Packing TypeTray
RoHs compliantEcopack2
GradeIndustrial
Package NameLQFP 48 7x7x1.4 mm

The STM32U073x8/B/C devices are ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M0+ 32-bit RISC core operating at a frequency of up to 56 MHz.The STM32U073x8/B/C devices embed high-speed memories (up to 256-Kbyte flash memory and 40-Kbyte SRAM with hardware parity...
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Key features
  • Includes ST state-of-the-art patented technology.
  • Ultra-low-power features (ultra-low-power devices)
    • 1.71 V to 3.6 V power supply
    • -40 °C to 85/125 °C temperature range
    • VBAT mode: 130 nA (with RTC and 9 x 32-bit backup registers)
    • Shutdown mode (6 wake-up pins): 16 nA
    • Standby mode (6 wake-up pins): 160 nA with RTC, 30 nA without RTC
    • Stop 2 mode: 825 nA with RTC, 695 nA without RTC
    • Run mode (LDO mode): 52 μA/MHz
    • Batch acquisition mode (BAM)
    • 4 μs wake-up from Stop mode
    • Brownout reset (BOR)
  • Core
    • 32-bit Arm®
      Cortex®-M0+ CPU, frequency up to 56 MHz
  • ART Accelerator
    • 1-Kbyte instruction cache allowing 0-wait-state execution from flash memory
  • Benchmarks
    • 1.13 DMIPS/MHz (Drystone 2.1)
    • 134 CoreMark® (2.4 CoreMark/MHz at 56 MHz)
    • 407 ULPMark™-CP
    • 143 ULPMark™-PP
    • 19.7 ULPMark™-CM
  • Memories
    • Up to 256-Kbyte single bank flash memory, proprietary code readout protection
    • 40-Kbyte SRAM with hardware parity check
  • Rich analog peripherals (independent supply)
    • 1x 12-bit ADC (0.4 µs conversion time), up to 16-bit with hardware oversampling
    • 1x 12-bit DAC output channel, low-power sample and hold
    • 1x general-purpose operational amplifier with built-in PGA (variable gain up to 16)
    • 2x ultra-low-power comparators
  • LCD driver
    • 8×48 or 4×52 segments, with step-up converter
  • General-purpose inputs/outputs
    • Up to 69 fast I/Os, most of them 5 V‑tolerant
  • 20 communication interfaces
    • USB 2.0 full-speed crystal-less solution with LPM and BCD
    • 7x USARTs/LPUARTs (SPI, ISO 7816, LIN, IrDA, modem)
    • 4x I2C interfaces supporting Fast-mode and Fast-mode Plus (up to 1 Mbit/s)
    • 3x SPIs, plus 4x USARTs in SPI mode
    • IRTIM (Infrared interface)
  • Security
    • Customer code protection

    • Robust read out protection (RDP): 3 protection level states and password-based regression (128-bit PSWD)
    • Hardware protection feature (HDP)
    • Secure boot
    • True random number generation, candidate for NIST SP 800-90B certification
    • Candidate for Arm® PSA level 1 and SESIP level 3 certifications
    • 5 passive anti-tamper pins
    • 96-bit unique ID
  • Clock management
    • 4 to 48 MHz crystal oscillator
    • 32 kHz crystal oscillator for RTC (LSE)
    • Internal 16 MHz factory-trimmed RC (±1%)
    • Internal low-power 32 kHz RC (±5%)
    • Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy)
    • Internal 48 MHz with clock recovery
    • PLL for system clock, USB, ADC
  • 10 timers, RTC, and 2 watchdogs
    • 1x 16-bit advanced motor-control, 1x 32-bit and 3x 16-bit general purpose, 2x 16-bit basic, 3x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
    • RTC with hardware calendar, alarms and calibration
  • CRC calculation unit
  • Up to 21 capacitive sensing channels
    • Supporting touchkey, linear and rotary touch sensors
  • 12-channel DMA controller
    • Flexible mapping (DMAMUX)
  • Debug
    • Development support: serial wire debug (SWD)
  • All packages are ECOPACK2 compliant.
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Quantity $ per unit Savings
1-9$2.800%
10-99$2.5210%
100-249$2.0726%
250-499$1.9630%
500$1.7637%
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$2.80
Supply Voltage Min Volt1.65
Supply Voltage Max Volt3.6
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius85.0
CoreArm Cortex-M0+
ECCN US3A991.a.2
ECCN EUNEC
Packing TypeTray
RoHs compliantEcopack2
GradeIndustrial
Package NameLQFP 48 7x7x1.4 mm

The STM32U073x8/B/C devices are ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M0+ 32-bit RISC core operating at a frequency of up to 56 MHz.The STM32U073x8/B/C devices embed high-speed memories (up to 256-Kbyte flash memory and 40-Kbyte SRAM with hardware parity...
Read More

Key features
  • Includes ST state-of-the-art patented technology.
  • Ultra-low-power features (ultra-low-power devices)
    • 1.71 V to 3.6 V power supply
    • -40 °C to 85/125 °C temperature range
    • VBAT mode: 130 nA (with RTC and 9 x 32-bit backup registers)
    • Shutdown mode (6 wake-up pins): 16 nA
    • Standby mode (6 wake-up pins): 160 nA with RTC, 30 nA without RTC
    • Stop 2 mode: 825 nA with RTC, 695 nA without RTC
    • Run mode (LDO mode): 52 μA/MHz
    • Batch acquisition mode (BAM)
    • 4 μs wake-up from Stop mode
    • Brownout reset (BOR)
  • Core
    • 32-bit Arm®
      Cortex®-M0+ CPU, frequency up to 56 MHz
  • ART Accelerator
    • 1-Kbyte instruction cache allowing 0-wait-state execution from flash memory
  • Benchmarks
    • 1.13 DMIPS/MHz (Drystone 2.1)
    • 134 CoreMark® (2.4 CoreMark/MHz at 56 MHz)
    • 407 ULPMark™-CP
    • 143 ULPMark™-PP
    • 19.7 ULPMark™-CM
  • Memories
    • Up to 256-Kbyte single bank flash memory, proprietary code readout protection
    • 40-Kbyte SRAM with hardware parity check
  • Rich analog peripherals (independent supply)
    • 1x 12-bit ADC (0.4 µs conversion time), up to 16-bit with hardware oversampling
    • 1x 12-bit DAC output channel, low-power sample and hold
    • 1x general-purpose operational amplifier with built-in PGA (variable gain up to 16)
    • 2x ultra-low-power comparators
  • LCD driver
    • 8×48 or 4×52 segments, with step-up converter
  • General-purpose inputs/outputs
    • Up to 69 fast I/Os, most of them 5 V‑tolerant
  • 20 communication interfaces
    • USB 2.0 full-speed crystal-less solution with LPM and BCD
    • 7x USARTs/LPUARTs (SPI, ISO 7816, LIN, IrDA, modem)
    • 4x I2C interfaces supporting Fast-mode and Fast-mode Plus (up to 1 Mbit/s)
    • 3x SPIs, plus 4x USARTs in SPI mode
    • IRTIM (Infrared interface)
  • Security
    • Customer code protection

    • Robust read out protection (RDP): 3 protection level states and password-based regression (128-bit PSWD)
    • Hardware protection feature (HDP)
    • Secure boot
    • True random number generation, candidate for NIST SP 800-90B certification
    • Candidate for Arm® PSA level 1 and SESIP level 3 certifications
    • 5 passive anti-tamper pins
    • 96-bit unique ID
  • Clock management
    • 4 to 48 MHz crystal oscillator
    • 32 kHz crystal oscillator for RTC (LSE)
    • Internal 16 MHz factory-trimmed RC (±1%)
    • Internal low-power 32 kHz RC (±5%)
    • Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy)
    • Internal 48 MHz with clock recovery
    • PLL for system clock, USB, ADC
  • 10 timers, RTC, and 2 watchdogs
    • 1x 16-bit advanced motor-control, 1x 32-bit and 3x 16-bit general purpose, 2x 16-bit basic, 3x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer
    • RTC with hardware calendar, alarms and calibration
  • CRC calculation unit
  • Up to 21 capacitive sensing channels
    • Supporting touchkey, linear and rotary touch sensors
  • 12-channel DMA controller
    • Flexible mapping (DMAMUX)
  • Debug
    • Development support: serial wire debug (SWD)
  • All packages are ECOPACK2 compliant.