STM32U083RCI6

The STM32U083xC devices are ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M0+ 32-bit RISC core, operating at frequencies up to 56 MHz. The devices incorporate high-speed memory (256 KB Flash and 40 KB SRAM with hardware parity), plus an extensive range of enhanced I/Os and peripherals connected to APB and AHB buses and a 32-bit multi-AHB bus matrix. They also integrate protection mechanisms for the embedded Flash and SRAM, such as readout protection and write protection. The STM32U083xC devices offer a 12-bit ADC, a 12-bit DAC, two embedded rail-to-rail analog comparators, one operational amplifier, one low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, three general-purpose 16-bit timers, and three 16-bit low-power timers. The devices also integrate up to 21 capacitive sensing channels and an embedded LCD controller capable of driving 8×48 or 4×52 segments with an internal step-up converter. They also feature standard and advanced communication interfaces: four I2C, three SPI, four USART, and three low-power UART, plus one crystal-less USB full-speed device. In addition, the STM32U083xC devices integrate an AES hardware accelerator. The STM32U083xC operates over the temperature ranges of -40 to +85°C (junction temperature up to +105°C) and -40 to +125°C (junction temperature up to +130°C), with a supply voltage ranging from 1.71 to 3.6 V using an internal LDO regulator. Comprehensive power-saving modes enable the design of low-power applications. Independent power supplies are supported: an analog independent power supply input for the ADC, DAC, operational amplifier, and comparators, as well as a VBAT input allowing backup of the RTC and backup registers. The STM32U083xC is available in eight packages ranging from 32 to 81 pins.

Key features

• Incorporates ST's advanced proprietary technology.
• Ultra-low-power features: 1.71 V to 3.6 V supply voltage, -40°C to 85/125°C temperature range, VBAT mode: 130 nA (with RTC and 9×32-bit backup registers), shutdown mode (6 wakeup pins): 16 nA, standby mode (6 wakeup 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, wakeup time from Stop mode 4 μs, brown-out reset.
• 32-bit Arm® Cortex®-M0+ CPU, up to 56 MHz.
• ART Accelerator: 1 KB instruction cache for zero-wait-state execution from Flash.
• Benchmarks: 1.13 DMIPS/MHz, 134 CoreMark®, 407 ULPMark™-CP, 143 ULPMark™-PP, 19.7 ULPMark™-CM.
• Memory: 256 KB single-bank Flash with proprietary code readout protection; 40 KB SRAM with hardware parity.
• Rich analog peripherals: 1×12-bit ADC, 1×12-bit DAC output channel, 1×general-purpose op-amp with built-in PGA, 2×ultra-low-power comparators.
• LCD driver: 8×48 or 4×52 segments with boost converter.
• GPIO: up to 69 fast I/Os, most 5 V-tolerant.
• 20 communication interfaces: USB 2.0 full-speed crystal-less solution, 7× USART/LPUART, 4× I2C, 3× SPI, IRTIM.
• Security: customer code protection, robust readout protection, password-based regression, hardware protection features, secure boot, AES hardware accelerator, true random number generation, 5 passive anti-tamper pins, 96-bit ID.
• Clock management: 4 to 48 MHz crystal oscillator, 32 kHz crystal oscillator, internal 16 MHz RC, internal low-power 32 kHz RC, internal multi-speed 100 kHz to 48 MHz oscillator, internal 48 MHz with clock recovery, PLL.
• 10 timers, RTC, and 2 watchdogs: 1×16-bit advanced motor control timer, 1×32-bit and 3×16-bit general-purpose timers, 2×16-bit basic timers, 3×low-power 16-bit timers, 2×watchdogs, SysTick timer, RTC with hardware calendar.
• Up to 21 capacitive sensing channels supporting touch keys, linear and rotary touch sensors.
• 12-channel DMA controller with flexible mapping.
• Debug support: Serial Wire Debug.
• All packages ECOPACK2 compliant.