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APM32F051C8T6
Public Made by Adomby adom
Geehy Microcontrollers (MCU/MPU/SOC), LQFP-48(7x7). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAPM32F051C8T6
Geehy · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)
APM32F051C8T6 from Geehy, 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 (1.65-3.6 V). Powers the RTC and backup registers when VDD is absent. |
| 2 | PC13 | bidirectional | General-purpose 3.3 V I/O (TC). Additional functions: RTC_TAMP1, RTC_TS, RTC_OUT, WKUP2. Powered from the VBAT switch, so drive strength is limited (≤2 MHz at 30 pF). |
| 3 | PC14/OSC32_IN | bidirectional | Low-speed 32.768 kHz oscillator input, or standard 3.3 V I/O (TC). Limited drive strength when used as GPIO. |
| 4 | PC15/OSC32_OUT | bidirectional | Low-speed 32.768 kHz oscillator output, or standard 3.3 V I/O (TC). Limited drive strength when used as GPIO. |
| 5 | PF0/OSC_IN | bidirectional | High-speed 4-32 MHz oscillator input, or 5 V-tolerant GPIO. |
| 6 | PF1/OSC_OUT | bidirectional | High-speed oscillator output, or 5 V-tolerant GPIO. |
| 7 | NRST | bidirectional | Bidirectional device reset (active low) with internal weak pull-up. Drives low during internal reset; may be pulled low externally to reset the device. |
| 8 | VSSA | power_in | Analog ground reference for the ADC, DAC, comparators and internal reference. |
| 9 | VDDA | power_in | Analog supply (2.4-3.6 V), independent of VDD, feeding the ADC, DAC, comparators and voltage reference. |
| 10 | PA0 | bidirectional | 3.3 V I/O directly connected to ADC (TTa). Alt: USART2_CTS, TMR2_CH1_ETR, COMP1_OUT, TSC_G1_IO1. Additional: ADC_IN0, COMP1_INM6, RTC_TAMP2, WKUP1. |
| 11 | PA1 | bidirectional | 3.3 V I/O directly connected to ADC (TTa). Alt: USART2_RTS, TMR2_CH2, TSC_G1_IO2, EVENTOUT. Additional: ADC_IN1, COMP1_INP. |
| 12 | PA2 | bidirectional | 3.3 V I/O directly connected to ADC (TTa). Alt: USART2_TX, TMR2_CH3, TMR15_CH1, COMP2_OUT, TSC_G1_IO3. Additional: ADC_IN2, COMP2_INM6. |
| 13 | PA3 | bidirectional | 3.3 V I/O directly connected to ADC (TTa). Alt: USART2_RX, TMR2_CH4, TMR15_CH2, TSC_G1_IO4. Additional: ADC_IN3, COMP2_INP. |
| 14 | PA4 | bidirectional | 3.3 V I/O directly connected to ADC (TTa). Alt: SPI1_NSS, I2S1_WS, USART2_CK, TMR14_CH1, TSC_G2_IO1. Additional: ADC_IN4, COMP1/2_INM4, DAC_OUT1. |
| 15 | PA5 | bidirectional | 3.3 V I/O directly connected to ADC (TTa). Alt: SPI1_SCK, I2S1_CK, CEC, TMR2_CH1_ETR, TSC_G2_IO2. Additional: ADC_IN5, COMP1/2_INM5. |
| 16 | PA6 | bidirectional | 3.3 V I/O directly connected to ADC (TTa). Alt: SPI1_MISO, I2S1_MCK, TMR3_CH1, TMR1_BKIN, TMR16_CH1, COMP1_OUT, TSC_G2_IO3, EVENTOUT. Additional: ADC_IN6. |
| 17 | PA7 | bidirectional | 3.3 V I/O directly connected to ADC (TTa). Alt: SPI1_MOSI, I2S1_SD, TMR3_CH2, TMR14_CH1, TMR1_CH1N, TMR17_CH1, COMP2_OUT, TSC_G2_IO4, EVENTOUT. Additional: ADC_IN7. |
| 18 | PB0 | bidirectional | 3.3 V I/O directly connected to ADC (TTa). Alt: TMR3_CH3, TMR1_CH2N, TSC_G3_IO2, EVENTOUT. Additional: ADC_IN8. |
| 19 | PB1 | bidirectional | 3.3 V I/O directly connected to ADC (TTa). Alt: TMR3_CH4, TMR14_CH1, TMR1_CH3N, TSC_G3_IO3. Additional: ADC_IN9. |
| 20 | PB2 | bidirectional | 5 V-tolerant I/O (FT). Alt: TSC_G3_IO4. |
| 21 | PB10 | bidirectional | 5 V-tolerant I/O (FT). Alt: I2C2_SCL, CEC, TMR2_CH3, TSC_SYNC. |
| 22 | PB11 | bidirectional | 5 V-tolerant I/O (FT). Alt: I2C2_SDA, TMR2_CH4, TSC_G6_IO1, EVENTOUT. |
| 23 | VSS | power_in | Digital ground. |
| 24 | VDD | power_in | Digital supply (2.0-3.6 V). |
| 25 | PB12 | bidirectional | 5 V-tolerant I/O (FT). Alt: SPI2_NSS, TMR1_BKIN, TSC_G6_IO2, EVENTOUT. |
| 26 | PB13 | bidirectional | 5 V-tolerant I/O (FT). Alt: SPI2_SCK, TMR1_CH1N, TSC_G6_IO3. |
| 27 | PB14 | bidirectional | 5 V-tolerant I/O (FT). Alt: SPI2_MISO, TMR1_CH2N, TMR15_CH1, TSC_G6_IO4. |
| 28 | PB15 | bidirectional | 5 V-tolerant I/O (FT). Alt: SPI2_MOSI, TMR1_CH3N, TMR15_CH1N, TMR15_CH2. Additional: RTC_REFIN. |
| 29 | PA8 | bidirectional | 5 V-tolerant I/O (FT). Alt: USART1_CK, TMR1_CH1, EVENTOUT, MCO. |
| 30 | PA9 | bidirectional | 5 V-tolerant I/O (FT). Alt: USART1_TX, TMR1_CH2, TMR15_BKIN, TSC_G4_IO1. |
| 31 | PA10 | bidirectional | 5 V-tolerant I/O (FT). Alt: USART1_RX, TMR1_CH3, TMR17_BKIN, TSC_G4_IO2. |
| 32 | PA11 | bidirectional | 5 V-tolerant I/O (FT). Alt: USART1_CTS, TMR1_CH4, COMP1_OUT, TSC_G4_IO3, EVENTOUT. |
| 33 | PA12 | bidirectional | 5 V-tolerant I/O (FT). Alt: USART1_RTS, TMR1_ETR, COMP2_OUT, TSC_G4_IO4, EVENTOUT. |
| 34 | PA13/SWDIO | bidirectional | 5 V-tolerant I/O (FT). Default after reset: SWDIO with internal pull-up. Alt: IR_OUT, SWDIO. |
| 35 | PF6 | bidirectional | 5 V-tolerant I/O (FT). Alt: I2C2_SCL. |
| 36 | PF7 | bidirectional | 5 V-tolerant I/O (FT). Alt: I2C2_SDA. |
| 37 | PA14/SWCLK | bidirectional | 5 V-tolerant I/O (FT). Default after reset: SWCLK with internal pull-down. Alt: USART2_TX, SWCLK. |
| 38 | PA15 | bidirectional | 5 V-tolerant I/O (FT). Alt: SPI1_NSS, I2S1_WS, USART2_RX, TMR2_CH1_ETR, EVENTOUT. |
| 39 | PB3 | bidirectional | 5 V-tolerant I/O (FT). Alt: SPI1_SCK, I2S1_CK, TMR2_CH2, TSC_G5_IO1, EVENTOUT. |
| 40 | PB4 | bidirectional | 5 V-tolerant I/O (FT). Alt: SPI1_MISO, I2S1_MCK, TMR3_CH1, TSC_G5_IO2, EVENTOUT. |
| 41 | PB5 | bidirectional | 5 V-tolerant I/O (FT). Alt: SPI1_MOSI, I2S1_SD, I2C1_SMBA, TMR16_BKIN, TMR3_CH2. |
| 42 | PB6 | bidirectional | 5 V-tolerant Fast-Mode+ I/O (FTf). Alt: I2C1_SCL, USART1_TX, TMR16_CH1N, TSC_G5_IO3. Supports FM+ 1 Mbit/s I2C. |
| 43 | PB7 | bidirectional | 5 V-tolerant Fast-Mode+ I/O (FTf). Alt: I2C1_SDA, USART1_RX, TMR17_CH1N, TSC_G5_IO4. Supports FM+ 1 Mbit/s I2C. |
| 44 | BOOT0 | input | Boot mode selection input. Sampled at reset to choose boot-from-flash, system memory (bootloader) or SRAM. |
| 45 | PB8 | bidirectional | 5 V-tolerant Fast-Mode+ I/O (FTf). Alt: I2C1_SCL, CEC, TMR16_CH1, TSC_SYNC. |
| 46 | PB9 | bidirectional | 5 V-tolerant Fast-Mode+ I/O (FTf). Alt: I2C1_SDA, IR_OUT, TMR17_CH1, EVENTOUT. |
| 47 | VSS | power_in | Digital ground. |
| 48 | VDD | power_in | Digital supply (2.0-3.6 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Geehy |
| Package | LQFP-48(7x7) |
| Category | MCU |
| Pins | 48 |
Ordering variants
Same part, different packaging or reel option.
APM32F051C8T6C6T6APM32F051C8T6APM32F051C8T6C6U6APM32F051C8T6C8U6APM32F051C8T6R6T6APM32F051C8T6R8T6APM32F051C8T6K6T6APM32F051C8T6K8T6APM32F051C8T6K6U6APM32F051C8T6K8U6
CAD (KiCad official)
- Symbol:
APM32F051C8T6 - Footprint:
Package_QFP:LQFP-48_7x7mm_P0.5mm - 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
- 3D model files:
apm32f051c8t6-etched.step/apm32f051c8t6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);apm32f051c8t6.step/apm32f051c8t6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Geehy datasheet (72 pp, sha256
4c3e595c7482399e, 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).