APM32F051C8T6

@@ -0,0 +1,97 @@+# APM32F051C8T6++**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++- `APM32F051C8T6C6T6`+- `APM32F051C8T6`+- `APM32F051C8T6C6U6`+- `APM32F051C8T6C8U6`+- `APM32F051C8T6R6T6`+- `APM32F051C8T6R8T6`+- `APM32F051C8T6K6T6`+- `APM32F051C8T6K8T6`+- `APM32F051C8T6K6U6`+- `APM32F051C8T6K8U6`++## CAD (KiCad official)++- Symbol: `APM32F051C8T6`+- Footprint: `Package_QFP:LQFP-48_7x7mm_P0.5mm`+- 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Geehy datasheet](docs/apm32f051c8t6-datasheet.pdf) (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).++[Datasheet PDF](docs/apm32f051c8t6-datasheet.pdf)