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APM32F103RCT7

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Geehy Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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APM32F103RCT7

Geehy · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)

APM32F103RCT7 from Geehy, in a LQFP-64(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VBAT power_in Backup domain power supply pin, 1.8V to 3.6V.
2 PC13-TAMPER-RTC bidirectional STD I/O (PC13) with default function TAMPER_RTC; powered via the power switch, so in output mode limited to 2MHz at 30PF load and not for current-source use.
3 PC14-OSC32_IN bidirectional STD I/O (PC14) with default function OSC32_IN; powered via the power switch, so in output mode limited to 2MHz at 30PF load and not for current-source use.
4 PC15-OSC32_OUT bidirectional STD I/O (PC15) with default function OSC32_OUT; powered via the power switch, so in output mode limited to 2MHz at 30PF load and not for current-source use.
5 OSC_IN input Input-only STD pin, oscillator input after reset, remappable by software to PD0.
6 OSC_OUT output Output STD pin, oscillator output after reset, remappable by software to PD1.
7 NRST bidirectional Bidirectional reset pin with built-in pull-up resistor.
8 PC0 bidirectional STDA I/O with default function ADC123_IN10.
9 PC1 bidirectional STDA I/O with default function ADC123_IN11.
10 PC2 bidirectional STDA I/O with default function ADC123_IN12.
11 PC3 bidirectional STDA I/O with default function ADC123_IN13.
12 VSSA power_in Analog ground pin.
13 VDDA power_in Analog power supply pin, 2.0V to 3.6V.
14 PA0-WKUP bidirectional STDA I/O (PA0) with functions WKUP, USART2_CTS, ADC123_IN0, TMR2_CH1_ETR, TMR5_CH1, TMR8_ETR.
15 PA1 bidirectional STDA I/O with functions USART2_RTS, ADC123_IN1, TMR5_CH2, TMR2_CH2.
16 PA2 bidirectional STDA I/O with functions USART2_TX, TMR5_CH3, ADC123_IN2, TMR2_CH3.
17 PA3 bidirectional STDA I/O with functions USART2_RX, TMR5_CH4, ADC123_IN3, TMR2_CH4.
18 VSS_4 power_in Digital ground pin.
19 VDD_4 power_in Digital power supply pin, 2.0V to 3.6V.
20 PA4 bidirectional STDA I/O with functions SPI1_NSS, USART2_CK, DAC_OUT1, ADC12_IN4.
21 PA5 bidirectional STDA I/O with functions SPI1_SCK, DAC_OUT2, ADC12_IN5.
22 PA6 bidirectional STDA I/O with functions SPI1_MISO, TMR8_BKIN, ADC12_IN6, TMR3_CH1; remap TMR1_BKIN.
23 PA7 bidirectional STDA I/O with functions SPI1_MOSI, TMR8_CH1N, ADC12_IN7, TMR3_CH2; remap TMR1_CH1N.
24 PC4 bidirectional STDA I/O with default function ADC12_IN14.
25 PC5 bidirectional STDA I/O with default function ADC12_IN15.
26 PB0 bidirectional STDA I/O with functions ADC12_IN8, TMR3_CH3, TMR8_CH2N; remap TMR1_CH2N.
27 PB1 bidirectional STDA I/O with functions ADC12_IN9, TMR3_CH4, TMR8_CH3N; remap TMR1_CH3N.
28 PB2 bidirectional 5V-tolerant I/O (PB2, BOOT1 after reset).
29 PB10 bidirectional 5V-tolerant I/O with functions I2C2_SCL, I2C4_SCL, USART3_TX; remap TMR2_CH3.
30 PB11 bidirectional 5V-tolerant I/O with functions I2C2_SDA, I2C4_SDA, USART3_RX; remap TMR2_CH4.
31 VSS_1 power_in Digital ground pin.
32 VDD_1 power_in Digital power supply pin, 2.0V to 3.6V.
33 PB12 bidirectional 5V-tolerant I/O with functions SPI2_NSS, I2S2_WS, I2C2_SMBAI, USART3_CK, TMR1_BKIN, CAN2_RX.
34 PB13 bidirectional 5V-tolerant I/O with functions SPI2_SCK, I2S2_CK, USART3_CTS, TMR1_CH1N, CAN2_TX.
35 PB14 bidirectional 5V-tolerant I/O with functions SPI2_MISO, TMR1_CH2N, USART3_RTS.
36 PB15 bidirectional 5V-tolerant I/O with functions SPI2_MOSI, I2S2_SD, TMR1_CH3N.
37 PC6 bidirectional 5V-tolerant I/O with functions I2S2_MCK, TMR8_CH1, SDIO_D6; remap TMR3_CH1.
38 PC7 bidirectional 5V-tolerant I/O with functions I2S3_MCK, TMR8_CH2, SDIO_D7; remap TMR3_CH2.
39 PC8 bidirectional 5V-tolerant I/O with functions TMR8_CH3, SDIO_D0; remap TMR3_CH3.
40 PC9 bidirectional 5V-tolerant I/O with functions TMR8_CH4, SDIO_D1; remap TMR3_CH4.
41 PA8 bidirectional 5V-tolerant I/O with functions USART1_CK, TMR1_CH1, MCO.
42 PA9 bidirectional 5V-tolerant I/O with functions USART1_TX, TMR1_CH2.
43 PA10 bidirectional 5V-tolerant I/O with functions USART1_RX, TMR1_CH3.
44 PA11 bidirectional 5V-tolerant I/O with functions USART1_CTS, USBDDM, USBD2DM, CAN1_RX, TMR1_CH4.
45 PA12 bidirectional 5V-tolerant I/O with functions USART1_RTS, USBDDP, USBD2DP, CAN1_TX, TMR1_ETR.
46 PA13 bidirectional 5V-tolerant I/O, JTMS/SWDIO after reset; remap PA13.
47 VSS_2 power_in Digital ground pin.
48 VDD_2 power_in Digital power supply pin, 2.0V to 3.6V.
49 PA14 bidirectional 5V-tolerant I/O, JTCK/SWCLK after reset; remap PA14.
50 PA15 bidirectional 5V-tolerant I/O, JTDI after reset, with SPI3_NSS, I2S3_WS; remap TMR2_CH1_ETR, PA15, SPI1_NSS.
51 PC10 bidirectional 5V-tolerant I/O with functions UART4_TX, SDIO_D2; remap USART3_TX.
52 PC11 bidirectional 5V-tolerant I/O with functions UART4_RX, SDIO_D3; remap USART3_RX.
53 PC12 bidirectional 5V-tolerant I/O with functions UART5_TX, SDIO_CK; remap USART3_CK.
54 PD2 bidirectional 5V-tolerant I/O with functions TMR3_ETR, UART5_RX, SDIO_CMD.
55 PB3 bidirectional 5V-tolerant I/O, JTDO after reset, with SPI3_SCK, I2S3_CK; remap PB3, TRACESWO, TMR2_CH2, SPI1_SCK.
56 PB4 bidirectional 5V-tolerant I/O, NJTRST after reset, with SPI3_MISO; remap PB4, TMR3_CH1, SPI1_MISO.
57 PB5 bidirectional STD I/O with functions I2C1_SMBAI, SPI3_MOSI, I2S3_SD; remap TMR3_CH2, SPI1_MOSI, CAN2_RX.
58 PB6 bidirectional 5V-tolerant I/O with functions I2C1_SCL, I2C3_SCL, TMR4_CH1; remap USART1_TX, CAN2_TX.
59 PB7 bidirectional 5V-tolerant I/O with functions I2C1_SDA, I2C3_SDA, TMR4_CH2; remap USART1_RX.
60 BOOT0 input Dedicated Boot0 input pin.
61 PB8 bidirectional 5V-tolerant I/O with functions TMR4_CH3, SDIO_D4; remap I2C1_SCL, I2C3_SCL, CAN1_RX.
62 PB9 bidirectional 5V-tolerant I/O with functions TMR4_CH4, SDIO_D5; remap I2C1_SDA, I2C3_SDA, CAN1_TX.
63 VSS_3 power_in Digital ground pin.
64 VDD_3 power_in Digital power supply pin, 2.0V to 3.6V.

Key specifications

Parameter Value
Manufacturer Geehy
Package LQFP-64(10x10)
Category Embedded Processors & Controllers
Pins 64

CAD (KiCad official)

  • Symbol: APM32F103RCT7
  • Footprint: Package_QFP:LQFP-64_10x10mm_P0.5mm
  • 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: apm32f103rct7-etched.step / apm32f103rct7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); apm32f103rct7.step / apm32f103rct7.glb are the bare package body.

Provenance

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

  • Datasheet: Geehy datasheet (53 pp, sha256 d27deda4cd99176d, retrieved 2026-10-18, 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: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF