HC32L072FAUA-QN32TR

The HC32L072 / HC32L073 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, two 12-bit DACs, comparators, op-amps, built-in high-performance PWM timers, LCD display, and a rich set of communication peripherals including multiple UART, SPI, I2C, I2S, USB, and CAN interfaces. It also incorporates information security modules such as AES and TRNG, featuring high integration, strong noise immunity, high reliability, and ultra-low power consumption. The product is based on a Cortex-M0+ core, supported by the mature Keil & IAR development toolchains, and is compatible with C language and assembly language programming.

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
• 1.2μA@3V Deep Sleep mode: all clocks off, POR active, IO state retained, IO interrupt active, power consumption with all registers, RAM, and CPU data preserved
• 1.6μA@3V Deep Sleep mode + RTC active
• 9μA@32.768kHz Low-speed operating mode: CPU running, peripherals off, executing from FLASH
• 40μA/MHz@3V@24MHz Sleep mode: CPU halted, peripherals off, main clock running
• 140μA/MHz@3V@24MHz Active mode: CPU running, peripherals off, executing from FLASH
• 4μs wake-up time for flexible and efficient mode switching with faster system response
• 128K-byte FLASH with erase/write protection, supports ISP, ICP, IAP
• 2 low-power 16-bit timers with cascade support
• 1 20-bit programmable watchdog with dedicated built-in 10kHz oscillator for WDT counting
• 4-channel UART interface
• 2-channel LPUART low-power interface, operable in Deep Sleep mode
• 2-channel SPI interface
• 2-channel I2C interface
• 2-channel I2S audio interface
• 1-channel Crystal-less USB Full Speed Device
• 1-channel CAN 2.0B interface
• Buzzer frequency generator with complementary output support
• External high-speed crystal: 4 ~ 32MHz
• External low-speed crystal: 32.768kHz
• Internal high-speed clock: 4/8/16/22.12/24MHz
• Internal low-speed clock: 32.8/38.4kHz
• PLL clock: 8 ~ 48MHz
• Internal high-speed USB clock: 48MHz
• Hardware internal/external clock calibration and monitoring
• 3 general-purpose 16-bit timers: 1 group complementary PWM output, 2x CPU frequency PWM output, up to 96MHz PWM output
• 1 advanced 16-bit timer: 3-phase complementary PWM output, 2x CPU frequency PWM output, up to 96MHz PWM output
• 3 high-performance 16-bit timer/counters with complementary PWM and dead-band protection
• 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: 5-channel capture/compare, 5-channel PWM output
• Hardware perpetual calendar RTC module
• Hardware CRC-16/32 module
• Hardware 32-bit divider
• AES-128/192/256 hardware co-processor
• TRNG true random number generator
• 2-channel DMAC
• 4×52 / 6×50 / 8×48 LCD driver (073 series only)
• Globally unique 10-byte ID
• 12-bit 1Msps high-speed, high-precision SAR ADC with built-in op-amp, capable of measuring high output impedance signals
• 2-channel 12-bit 500Ksps DAC
• 5 integrated multi-function op-amps, two of which can serve as output buffers for the 2-channel DAC
• 3 integrated voltage comparators with 6-bit DAC and programmable reference
• Integrated LVD with 16-level configurable threshold voltage, supports port and supply voltage monitoring
• SWD debug solution with full-featured debugger
• Operating conditions: -40~85°C, 1.8~5.5V
• Package: LQFP100/64/48, QFN32