HC32L072FAUA-QN32TR from XHSC, in a QFN-32-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	PC14/XTLI	bidirectional	GPIO PC14; low-speed 32.768 kHz crystal oscillator input (XTLI) when RTC LSE is used.
2	PC15/XTLO	bidirectional	GPIO PC15; low-speed 32.768 kHz crystal oscillator output (XTLO) when RTC LSE is used.
3	RESETB	input	Active-low external reset input. Internal pull-up; drive low to reset the MCU.
4	AVSS	power_in	Analog ground reference for the ADC, DAC, comparators and analog blocks. Tie to system ground.
5	AVCC	power_in	Analog supply (2.0-5.5 V typical) for ADC/DAC/comparators. Decouple with 100 nF close to the pin.
6	PA00	bidirectional	GPIO PA0 with alt-functions: UART1_CTS, LPUART1_TXD, TIM0/1/3 channels, VC0/VC1 comparator inputs, AIN0 ADC input, SEG23 LCD.
7	PA01	bidirectional	GPIO PA1 with alt-functions: UART1_RTS, LPUART1_RXD, TIM0/1 channels, HCLK_OUT, SPI1_MOSI, AIN1, VC0/VC1 comp, SEG22 LCD.
8	PA02	bidirectional	GPIO PA2 with alt-functions: UART1_TXD, TIM0/1/2 channels, VC1_OUT, PCLK_OUT, SPI1_MISO, AIN2, VC0/VC1 comp, SEG21 LCD.
9	PA03	bidirectional	GPIO PA3 with alt-functions: UART1_RXD, TIM0_GATE, TIM1/2/3/5 channels, SPI1_CS, AIN3, VC0/VC1 comp, SEG20 LCD.
10	PA04	bidirectional	GPIO PA4 with alt-functions: SPI0_CS, UART1_TXD, PCA_CH4, TIM2_ETR/TIM3/TIM5, LVD_OUT, AIN4, VC0/VC1 comp, OP3_OUT, DAC0_OUT, SEG19.
11	PA05	bidirectional	GPIO PA5 with alt-functions: SPI0_SCK, TIM0_ETR, PCA_ECI, TIM0/5 channels, XTL_OUT/XTH_OUT, AIN5, VC0/VC1/VC2 comp, OP4_OUT, DAC1_OUT, SEG18.
12	PA06	bidirectional	GPIO PA6 with alt-functions: SPI0_MISO, PCA_CH0, TIM1/3, VC0_OUT, TIM3_GATE, LPUART0_CTS, AIN6, VC0 comp, OP4_INN, SEG17.
13	PA07	bidirectional	GPIO PA7 with alt-functions: SPI0_MOSI, PCA_CH1, HCLK_OUT, TIM2/3/4, VC1_OUT, AIN7, VC0 comp, OP4_INP, SEG16.
14	PB00	bidirectional	GPIO PB0 with alt-functions: PCA_CH2, TIM3/5, LPUART0_TXD, RCH/RCL/PLL_OUT, AIN8, VC1 comp, OP3_INP, SEG13.
15	PB01	bidirectional	GPIO PB1 with alt-functions: PCA_CH3, PCLK_OUT, TIM3/6, LPUART0_RTS, VC2_OUT, TCLK_OUT, AIN9/EXVREF external reference input, VC1/VC2 comp, SEG12.
16	DVSS	power_in	Digital ground return for the MCU core and digital I/O. Tie to system ground plane.
17	DVCC	power_in	Digital supply input (2.0-5.5 V). Decouple with 100 nF close to the pin.
18	PA08	bidirectional	GPIO PA8 with alt-functions: UART0_TXD, TIM3_CH0A, CRS_SYNC, CAN_STBY, TIM1_GATE, TIM4_CHA, TIM3_BK, SEG0 LCD.
19	PA09	bidirectional	GPIO PA9 with alt-functions: UART0_TXD, TIM3_CH1A, TIM0_BK, I2C0_SCL, HCLK_OUT, TIM5_CHA, COM0 LCD backplane.
20	PA10	bidirectional	GPIO PA10 with alt-functions: UART0_RXD, TIM3_CH2A, TIM2_BK, I2C0_SDA, TIM2_GATE, PCLK_OUT, TIM6_CHA, COM1 LCD backplane.
21	USBDM	bidirectional	USB 2.0 full-speed D− data line (HC32L072 variants only). Requires ~22 Ω series termination per USB spec.
22	USBDP	bidirectional	USB 2.0 full-speed D+ data line (HC32L072 variants only). Requires ~22 Ω series termination per USB spec.
23	PA13	bidirectional	GPIO PA13; SWDIO SWD debug data (default after reset). Alt: IR_OUT, UART0_RXD, LVD_OUT, TIM3_ETR, RTC_1HZ, PCNT_S1, VC2_OUT.
24	AVCC_USB	power_in	USB analog supply (3.3 V nominal for USB PHY). Decouple close to the pin; required for USB functionality on HC32L072.
25	PA14	bidirectional	GPIO PA14; SWCLK SWD debug clock (default after reset). Alt: UART1_TXD, UART0_TXD, TIM3_CH2A, LVD_OUT, RCH/RCL/PLL_OUT.
26	PB04	bidirectional	GPIO PB4 with alt-functions: SPI0_MISO, PCA_CH0, TIM2_BK, UART0_CTS, TIM2_GATE, TIM3_CH0B, LPTIM0_EXT, AIN input, SEG34/VLCD3 for LCD driver.
27	PB05	bidirectional	GPIO PB5 with alt-functions: SPI0_MOSI, TIM1_BK, PCA_CH1, LPTIM0_GATE, PCNT_S0, UART0_RTS, AIN input, SEG33/VLCD2 for LCD driver.
28	BOOT0/PF11	input	BOOT0 selection input at reset (also PF11 GPIO, SEG30). Sample on reset to choose boot mode; usually tied via pull-down for main-flash boot.
29	PB08	bidirectional	GPIO PB8 with alt-functions: I2C0_SCL, TIM1_CHA, CAN_RX, TIM2_CHA, TIM0_GATE, TIM3_CH2A, UART0_TXD, LVD1 analog, SEG29 LCD.
30	PB09	bidirectional	GPIO PB9 with alt-functions: I2C0_SDA, IR_OUT, SPI1_CS, TIM2_CHA/CHB, CAN_TX, UART0_RXD, SEG28 LCD.
31	DVSS	power_in	Second digital ground return. Tie to system ground plane.
32	VCAP	passive	Internal LDO decoupling / core-supply capacitor pin. Connect a low-ESR ceramic capacitor (typ. 2.2 µF) to VSS. Do NOT drive.

Key specifications

Parameter	Value
Manufacturer	XHSC
Package	QFN-32-EP(5x5)
Category	MCU
Pins	32

Ordering variants

Same part, different packaging or reel option.

HC32L072FAUA-QN32TR
HC32L072FAUA-QN32TRJATA-LQ48
HC32L072FAUA-QN32TRJATA-LQFP48
HC32L072FAUA-QN32TRKATA-LQFP64
HC32L072FAUA-QN32TRPATA-LQFP100

CAD (KiCad official)

Symbol: HC32L072FAUA-QN32TR
Footprint: Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
3D model: QFN-32-EP(5x5) (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: XHSC datasheet (102 pp, sha256 d7134b3d9cd4f117, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF