HC32L170FAUA-QFN32TR

The HC32L170/HC32L176 series is an ultra-low-power, wide-voltage MCU designed to extend battery life in portable measurement systems. It integrates a 12-bit 1Msps high-precision SAR ADC, one 12-bit DAC, along with comparators, op-amps, built-in high-performance PWM timers, LCD display, and multiple communication peripherals including UART, SPI, and I2C. It also incorporates security modules such as AES and TRNG, featuring high integration, strong noise immunity, high reliability, and ultra-low power consumption. The product uses a Cortex-M0+ core, compatible with the established Keil & IAR development and debugging toolchains, supporting both C language and assembly language.

Applications

• Sensor applications, IoT applications
• Smart meters, wireless modules, thermostats, shelf labels
• Intelligent transportation, alarm systems
• Smart home, medical devices

Key features

• 48MHz Cortex-M0+ 32-bit CPU platform
• Flexible power management system with ultra-low power performance:
• 0.6μA@3V Deep Sleep mode: all clocks off, POR active, IO state retained, IO interrupt active, all registers, RAM and CPU data saved
• 1.0μA@3V Deep Sleep mode + RTC active
• 8μA@32.768kHz Low-speed active mode: CPU running, peripherals off, executing from Flash
• 30μA/MHz@3V@24MHz Sleep mode: CPU halted, peripherals off, main clock running
• 130μA/MHz@3V@24MHz Active mode: CPU running, peripherals off, executing from Flash
• 4μs ultra-low power wake-up time for flexible and efficient mode switching with fast system response
• 128K bytes Flash with write protection, supports ISP, ICP, IAP
• 16K bytes RAM with parity check for enhanced system stability
• General-purpose I/O pins (88IO/100PIN, 72IO/80PIN, 56IO/64PIN, 40IO/48PIN, 26IO/32PIN)
• External HSE 4–32MHz, external LSE 32.768kHz, internal HSI 4/8/16/22.12/24MHz, internal LSI 32.8/38.4kHz, PLL clock 8–48MHz; hardware-supported internal/external clock calibration and monitoring
• Timers/Counters:
• 3 × 1-channel complementary output general-purpose 16-bit timers
• 1 × 3-channel complementary output general-purpose 16-bit timer
• 2 × low-power 16-bit timers with cascade support
• 3 × high-performance 16-bit timers/counters with PWM complementary output and dead-band protection
• 1 × 20-bit programmable watchdog with dedicated built-in 10kHz oscillator for WDT counting
• 1 × ultra-low power pulse counter PCNT with auto timed wake-up in low-power mode, maximum timing up to 1024 seconds
• 1 × programmable 16-bit timer PCA with 5-channel capture/compare and 5-channel PWM output
• Communication interfaces:
• 4 × UART standard communication interfaces
• 2 × LPUART low-power communication interfaces, operational in Deep Sleep mode
• 2 × SPI standard communication interfaces
• 2 × I2C standard communication interfaces
• Buzzer frequency generator with complementary output support
• Hardware perpetual calendar RTC module
• Hardware CRC16/CRC32 module
• AES128/192/256 hardware coprocessor
• TRNG true random number generator
• 2-channel DMAC
• 4×52 / 6×50 / 8×48 LCD driver
• Globally unique 10-byte ID
• 12-bit 1Msps high-speed high-precision SAR ADC with built-in input buffer for high-output-impedance signal measurement
• 1 × 12-bit 500Ksps DAC
• Integrated 1 × multi-function op-amp, usable as DAC output buffer
• Integrated 3 × voltage comparators with 6-bit DAC and programmable reference
• Integrated LVD with 16-level configurable threshold voltage, supports port voltage and supply voltage monitoring
• SWD debug solution with full-featured debugger
• Operating conditions: -40–85°C, 1.8–5.5V
• Packages: LQFP100/80/64/48, QFN32