AT32F415CBT7 from ARTERY, in a LQFP-48(7x7). 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	VBAT	power_in	Backup domain supply. Powers LEXT oscillator, ERTC and 20x 32-bit battery-backed BPR registers when VDD is absent.
2	PC13/TAMPER-RTC	bidirectional	GPIO PC13 with alternate TAMPER-RTC. Powered from backup switch; limited to ~3 mA source current so cannot drive LEDs directly.
3	PC14/LEXT_IN	bidirectional	GPIO PC14, default alternate is LEXT_IN (32 kHz low-speed external crystal input).
4	PC15/LEXT_OUT	bidirectional	GPIO PC15, default alternate is LEXT_OUT (32 kHz LSE crystal output).
5	PD0/HEXT_IN	bidirectional	Default HEXT_IN (4-25 MHz high-speed external crystal input). Can be remapped to GPIO PD0 by firmware.
6	PD1/HEXT_OUT	bidirectional	Default HEXT_OUT (HEXT crystal driver output). Can be remapped to GPIO PD1 by firmware.
7	NRST	bidirectional	Active-low bidirectional reset. External pull-up to VDD; driven low on POR/LVR/watchdog/software reset.
8	VSSA/VREF-	power_in	Analog ground / ADC negative reference. Tie to VSS with a low-impedance path.
9	VDDA/VREF+	power_in	Analog supply / ADC positive reference (2.6-3.6 V). Decouple to VSSA.
10	PA0-WKUP	bidirectional	GPIO PA0 with WKUP wake-from-standby, ADC1_IN0, CMP1 IN/OUT, USART2_CTS, TMR2/5 channels and TMR1_EXT remap.
11	PA1	bidirectional	GPIO PA1. Alt: ADC1_IN1, CMP1_INP1, USART2_RTS, TMR2_CH2, TMR5_CH2.
12	PA2	bidirectional	GPIO PA2. Alt: ADC1_IN2, CMP2 IN/OUT, USART2_TX, TMR2_CH3, TMR5_CH3, TMR9_CH1; SDIO1_CK remap.
13	PA3	bidirectional	GPIO PA3. Alt: ADC1_IN3, CMP2_INP1, USART2_RX, TMR2_CH4, TMR5_CH4, TMR9_CH2; SDIO1_CMD remap.
14	PA4	bidirectional	GPIO PA4 (5 V-tolerant? no; standard IO). Alt: ADC1_IN4, CMP1/2_INM4, USART2_CK, SPI1_CS, I2S1_WS; SDIO1_D4/D0 remap.
15	PA5	bidirectional	GPIO PA5. Alt: ADC1_IN5, CMP1_INP0, CMP1/2_INM5, SPI1_SCK, I2S1_CK; USART3_CK / SDIO1_D5/D1 remap.
16	PA6	bidirectional	GPIO PA6. Alt: ADC1_IN6, SPI1_MISO, TMR3_CH1; CMP1_OUT / USART3_RX / SDIO1_D6/D2 / TMR1_BRK / TMR10_CH1 remap.
17	PA7	bidirectional	GPIO PA7. Alt: ADC1_IN7, CMP2_INP0, SPI1_MOSI, I2S1_SD, TMR3_CH2; CMP2_OUT / USART3_TX / SDIO1_D7/D3 / TMR1_CH1C / TMR11_CH1 remap.
18	PB0	bidirectional	GPIO PB0. Alt: ADC1_IN8, I2S1_MCK, TMR3_CH3; USART3_RTS / TMR1_CH2C remap.
19	PB1	bidirectional	GPIO PB1. Alt: ADC1_IN9, TMR3_CH4; USART3_CTS / TMR1_CH3C remap.
20	PB2/BOOT1	bidirectional	GPIO PB2 (5 V-tolerant), also sampled as BOOT1 at reset for boot-mode selection.
21	PB10	bidirectional	GPIO PB10 (5 V-tolerant). Alt: I2C2_SCL, USART3_TX; TMR2_CH3 remap.
22	PB11	bidirectional	GPIO PB11 (5 V-tolerant). Alt: I2C2_SDA, USART3_RX; TMR2_CH4 remap.
23	VSS	power_in	Digital ground.
24	VDD	power_in	Digital supply, 2.6-3.6 V.
25	PB12	bidirectional	GPIO PB12 (5 V-tolerant). Alt: USART3_CK, I2C2_SMBA, SPI2_CS, I2S2_WS, TMR1_BRK.
26	PB13	bidirectional	GPIO PB13 (5 V-tolerant). Alt: TMR1_CH1C, USART3_CTS, SPI2_SCK, I2S2_CK.
27	PB14	bidirectional	GPIO PB14 (5 V-tolerant). Alt: TMR1_CH2C, USART3_RTS, SPI2_MISO; TMR9_CH1 remap.
28	PB15	bidirectional	GPIO PB15 (5 V-tolerant). Alt: TMR1_CH3C, ERTC_REFIN, SPI2_MOSI, I2S2_SD; TMR9_CH2 remap.
29	PA8	bidirectional	GPIO PA8 (5 V-tolerant). Alt: OTGFS1_SOF, CLKOUT, USART1_CK, TMR1_CH1; I2C2_SCL remap.
30	PA9	bidirectional	GPIO PA9 (5 V-tolerant). Alt: OTGFS1_VBUS, USART1_TX, TMR1_CH2; I2C2_SMBA remap.
31	PA10	bidirectional	GPIO PA10. Alt: OTGFS1_ID, USART1_RX, TMR1_CH3.
32	PA11	bidirectional	GPIO PA11. Alt: OTGFS1_D-, USART1_CTS, CAN1_RX, TMR1_CH4; CMP1_OUT remap.
33	PA12	bidirectional	GPIO PA12. Alt: OTGFS1_D+, USART1_RTS, CAN1_TX, TMR1_EXT; CMP2_OUT remap.
34	PA13/JTMS-SWDIO	bidirectional	Default JTMS/SWDIO debug pin (5 V-tolerant). Can be freed to GPIO PA13 by remap.
35	PF6	bidirectional	GPIO PF6 (5 V-tolerant). Remap: I2C1_SCL / I2C2_SCL.
36	PF7	bidirectional	GPIO PF7 (5 V-tolerant). Remap: I2C1_SDA / I2C2_SDA.
37	PA14/JTCK-SWCLK	bidirectional	Default JTCK/SWCLK debug clock (5 V-tolerant). Can be freed to GPIO PA14 by remap.
38	PA15/JTDI	bidirectional	Default JTDI debug pin (5 V-tolerant). Remap: PA15 GPIO, SPI1/2_CS, I2S1/2_WS, TMR2_CH1, TMR2_EXT.
39	PB3/JTDO	bidirectional	Default JTDO/SWO debug pin (5 V-tolerant). Remap: PB3 GPIO, SPI1/2_SCK, I2S1/2_CK, TMR2_CH2.
40	PB4/NJTRST	bidirectional	Default NJTRST JTAG reset (5 V-tolerant, active low). Remap: PB4 GPIO, SPI1/2_MISO, I2C2_SDA, TMR3_CH1.
41	PB5	bidirectional	GPIO PB5 (5 V-tolerant). Alt: I2C1_SMBA; remap SPI1_MOSI/I2S1_SD, SPI2_MOSI/I2S2_SD, TMR3_CH2.
42	PB6	bidirectional	GPIO PB6 (5 V-tolerant). Alt: I2C1_SCL, TMR4_CH1; USART1_TX / I2S1_MCK remap.
43	PB7	bidirectional	GPIO PB7 (5 V-tolerant). Alt: I2C1_SDA, TMR4_CH2; USART1_RX remap.
44	BOOT0	input	Boot-mode select input sampled at reset (with BOOT1/PB2) to select flash, system-memory (bootloader), or SRAM boot.
45	PB8	bidirectional	GPIO PB8 (5 V-tolerant). Alt: SDIO1_D4, TMR4_CH3, TMR10_CH1; I2C1_SCL / CAN1_RX remap.
46	PB9	bidirectional	GPIO PB9 (5 V-tolerant). Alt: SDIO1_D5, TMR4_CH4, TMR11_CH1; I2C1_SDA / CAN1_TX remap.
47	VSS	power_in	Digital ground.
48	VDD	power_in	Digital supply, 2.6-3.6 V.

Key specifications

Parameter	Value
Manufacturer	ARTERY
Package	LQFP-48(7x7)
Category	MCU
Pins	48

Ordering variants

AT32F415CBT7
AT32F415CBT7CCT7
AT32F415CBT7C8T7
AT32F415CBT7CBU7
AT32F415CBT7CCU7
AT32F415CBT7RBT7
AT32F415CBT7RBT7-7
AT32F415CBT7RCT7
AT32F415CBT7RCT7-7
AT32F415CBT7R8T7
AT32F415CBT7R8T7-7
AT32F415CBT7KBU7-4
AT32F415CBT7KCU7-4
AT32F415CBT7K8U7-4

CAD (KiCad official)

Symbol: AT32F415CBT7
Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
3D model: LQFP-48(7x7) (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`at32f415cbt7.step`	617 KB	You want the bare part, or you mark your own boards.
`at32f415cbt7-etched.step`	4.1 MB	You want the part with `AT32F415CBT7` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 1059 faces against 747 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: ARTERY datasheet (75 pp, sha256 7bd001051ee57bd1, 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