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PWM Timer Pins
| Pin | PWM Timer | Channel | Generic label | HY_TINYSTM103TB |
| PA_0 (no. alternatives: 1) | TIM2 | 1 | D0/A0 | RST |
| PA_0_ALT1 | TIM2 | 1 |
| PA_1 (no. alternatives: 1) | TIM2 | 2 | D1/A1 | LED |
| PA_1_ALT1 | TIM2 | 2 |
| PA_2 (no. alternatives: 1) | TIM2 | 3 | D2/A2 | PA_2 |
| PA_2_ALT1 | TIM2 | 3 |
| PA_3 (no. alternatives: 1) | TIM2 | 4 | D3/A3 | PA_3 |
| PA_3_ALT1 | TIM2 | 4 |
| PA_6 | TIM3 | 1 | D6/A6 | PA_6 |
| PA_7 (no. alternatives: 1) | TIM1 | 1N | D7/A7 | PA_7 |
| PA_7_ALT1 | TIM3 | 2 |
| PA_8 (no. alternatives: 1) | TIM1 | 1 | D8 | PA_8 |
| PA_8_ALT1 | TIM1 | 1 |
| PA_9 (no. alternatives: 1) | TIM1 | 2 | D9 | PA_9 |
| PA_9_ALT1 | TIM1 | 2 |
| PA_10 (no. alternatives: 1) | TIM1 | 3 | D10 | PA_10 |
| PA_10_ALT1 | TIM1 | 3 |
| PA_11 (no. alternatives: 1) | TIM1 | 4 | D11 | PA_11 |
| PA_11_ALT1 | TIM1 | 4 |
| PA_15 (no. alternatives: 1) | TIM2 | 1 | D15 | 5V |
| PA_15_ALT1 | TIM2 | 1 |
| PB_0 (no. alternatives: 2) | TIM1 | 2N | D16/A8 | PB_0 |
| PB_0_ALT1 | TIM3 | 3 |
| PB_0_ALT2 | TIM3 | 3 |
| PB_1 (no. alternatives: 2) | TIM1 | 3N | D17/A9 | PB_1 |
| PB_1_ALT1 | TIM3 | 4 |
| PB_1_ALT2 | TIM3 | 4 |
| PB_3 (no. alternatives: 1) | TIM2 | 2 | D19 | PB_3 |
| PB_3_ALT1 | TIM2 | 2 |
| PB_4 | TIM3 | 1 | D20 | PB_4 |
| PB_5 | TIM3 | 2 | D21 | PB_5 |
| PB_6 | TIM4 | 1 | D22 | PB_6 |
| PB_7 | TIM4 | 2 | D23 | PB_7 |
ADC Pins
| Pin | ADC | Channel | Generic label | HY_TINYSTM103TB |
| PA_0 (no. alternatives: 1) | ADC1 | 0 | D0/A0 | RST |
| PA_0_ALT1 | ADC2 | 0 |
| PA_1 (no. alternatives: 1) | ADC1 | 1 | D1/A1 | LED |
| PA_1_ALT1 | ADC2 | 1 |
| PA_2 (no. alternatives: 1) | ADC1 | 2 | D2/A2 | PA_2 |
| PA_2_ALT1 | ADC2 | 2 |
| PA_3 (no. alternatives: 1) | ADC1 | 3 | D3/A3 | PA_3 |
| PA_3_ALT1 | ADC2 | 3 |
| PA_4 (no. alternatives: 1) | ADC1 | 4 | D4/A4 | PA_4 |
| PA_4_ALT1 | ADC2 | 4 |
| PA_5 (no. alternatives: 1) | ADC1 | 5 | D5/A5 | PA_5 |
| PA_5_ALT1 | ADC2 | 5 |
| PA_6 (no. alternatives: 1) | ADC1 | 6 | D6/A6 | PA_6 |
| PA_6_ALT1 | ADC2 | 6 |
| PA_7 (no. alternatives: 1) | ADC1 | 7 | D7/A7 | PA_7 |
| PA_7_ALT1 | ADC2 | 7 |
| PB_0 (no. alternatives: 1) | ADC1 | 8 | D16/A8 | PB_0 |
| PB_0_ALT1 | ADC2 | 8 |
| PB_1 (no. alternatives: 1) | ADC1 | 9 | D17/A9 | PB_1 |
| PB_1_ALT1 | ADC2 | 9 |
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