component
STM32F427ZIT6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-144(20x20). Pinout checked against ST's open pin data, 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
markdownSTM32F427ZIT6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-144(20x20)
STM32F427ZIT6 from STMicroelectronics, in a LQFP-144(20x20). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model, then checked against ST open pin data); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | PE2 | bidirectional | GPIO Port E pin 2; can be configured for alternate functions including SPI4_CLK, SAI1_MCLK_A, and other peripherals |
| 2 | PE3 | bidirectional | GPIO Port E pin 3; can be configured for alternate functions including SPI4_MOSI and other peripherals |
| 3 | PE4 | bidirectional | GPIO Port E pin 4; can be configured for alternate functions including SPI4_MISO and other peripherals |
| 4 | PE5 | bidirectional | GPIO Port E pin 5; can be configured for alternate functions including SPI4_NSS and other peripherals |
| 5 | PE6 | bidirectional | GPIO Port E pin 6; can be configured for alternate functions including TIM9_CH2 and other peripherals |
| 6 | VBAT | power_in | Battery voltage supply pin (1.65 V to 3.6 V); always powered independently of VDD |
| 7 | PC13 | bidirectional | GPIO Port C pin 13; typically used with 32 kHz oscillator; can be configured for RTC_AF1 and other functions |
| 8 | PC14/OSC32_IN | bidirectional | GPIO Port C pin 14 / 32 kHz oscillator input; can be used as OSC32_IN for RTC or as GPIO |
| 9 | PC15/OSC32_OUT | bidirectional | GPIO Port C pin 15 / 32 kHz oscillator output; can be used as OSC32_OUT for RTC or as GPIO |
| 10 | PF0 | bidirectional | |
| 11 | PF1 | bidirectional | |
| 12 | PF2 | bidirectional | |
| 13 | PF3 | bidirectional | |
| 14 | PF4 | bidirectional | |
| 15 | PF5 | bidirectional | |
| 16 | VSS | power_in | Ground reference; must be connected to system ground |
| 17 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
| 18 | PF6 | bidirectional | |
| 19 | PF7 | bidirectional | |
| 20 | PF8 | bidirectional | |
| 21 | PF9 | bidirectional | |
| 22 | PF10 | bidirectional | |
| 23 | PH0/OSC_IN | bidirectional | GPIO Port H pin 0 / main oscillator input; can be used as OSC_IN for system clock or as GPIO |
| 24 | PH1/OSC_OUT | bidirectional | GPIO Port H pin 1 / main oscillator output; can be used as OSC_OUT for system clock or as GPIO |
| 25 | NRST | input | External reset pin (active low); 100 nF capacitor must be connected to ground |
| 26 | PC0 | bidirectional | GPIO Port C pin 0; can be configured for alternate functions including ADC12_IN10 and other peripherals |
| 27 | PC1 | bidirectional | GPIO Port C pin 1; can be configured for alternate functions including ADC12_IN11 and other peripherals |
| 28 | PC2 | bidirectional | GPIO Port C pin 2; can be configured for alternate functions including ADC12_IN12 and other peripherals |
| 29 | PC3 | bidirectional | GPIO Port C pin 3; can be configured for alternate functions including ADC12_IN13 and other peripherals |
| 30 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
| 31 | VSSA | power_in | Analog ground reference; must be connected to VSS |
| 32 | VREF+ | power_in | |
| 33 | VDDA | power_in | Analog supply voltage (1.65 V to 3.6 V); must be filtered and decoupled separately from VDD |
| 34 | PA0/WKUP | bidirectional | |
| 35 | PA1 | bidirectional | GPIO Port A pin 1; can be configured for alternate functions including ADC123_IN1, UART4_RX, and other peripherals |
| 36 | PA2 | bidirectional | GPIO Port A pin 2; can be configured for alternate functions including ADC123_IN2, USART2_TX, and other peripherals |
| 37 | PA3 | bidirectional | GPIO Port A pin 3; can be configured for alternate functions including ADC123_IN3, USART2_RX, and other peripherals |
| 38 | VSS | power_in | Ground reference; must be connected to system ground |
| 39 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
| 40 | PA4 | bidirectional | GPIO Port A pin 4; can be configured for alternate functions including ADC12_IN4, SPI1_NSS, and other peripherals |
| 41 | PA5 | bidirectional | GPIO Port A pin 5; can be configured for alternate functions including ADC12_IN5, SPI1_CLK, and other peripherals |
| 42 | PA6 | bidirectional | GPIO Port A pin 6; can be configured for alternate functions including ADC12_IN6, SPI1_MISO, and other peripherals |
| 43 | PA7 | bidirectional | GPIO Port A pin 7; can be configured for alternate functions including ADC12_IN7, SPI1_MOSI, and other peripherals |
| 44 | PC4 | bidirectional | GPIO Port C pin 4; can be configured for alternate functions including ADC12_IN14 and other peripherals |
| 45 | PC5 | bidirectional | GPIO Port C pin 5; can be configured for alternate functions including ADC12_IN15 and other peripherals |
| 46 | PB0 | bidirectional | GPIO Port B pin 0; can be configured for alternate functions including ADC12_IN8 and other peripherals |
| 47 | PB1 | bidirectional | GPIO Port B pin 1; can be configured for alternate functions including ADC12_IN9 and other peripherals |
| 48 | PB2/BOOT1 | bidirectional | |
| 49 | PF11 | bidirectional | |
| 50 | PF12 | bidirectional | |
| 51 | VSS | power_in | Ground reference; must be connected to system ground |
| 52 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
| 53 | PF13 | bidirectional | |
| 54 | PF14 | bidirectional | |
| 55 | PF15 | bidirectional | |
| 56 | PG0 | bidirectional | GPIO Port G pin 0; can be configured for alternate functions and other peripherals |
| 57 | PG1 | bidirectional | GPIO Port G pin 1; can be configured for alternate functions and other peripherals |
| 58 | PE7 | bidirectional | GPIO Port E pin 7; can be configured for alternate functions including TIM1_ETR and other peripherals |
| 59 | PE8 | bidirectional | GPIO Port E pin 8; can be configured for alternate functions including TIM1_CH1N and other peripherals |
| 60 | PE9 | bidirectional | GPIO Port E pin 9; can be configured for alternate functions including TIM1_CH1 and other peripherals |
| 61 | VSS | power_in | Ground reference; must be connected to system ground |
| 62 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
| 63 | PE10 | bidirectional | GPIO Port E pin 10; can be configured for alternate functions including TIM1_CH2N and other peripherals |
| 64 | PE11 | bidirectional | GPIO Port E pin 11; can be configured for alternate functions including TIM1_CH2 and other peripherals |
| 65 | PE12 | bidirectional | GPIO Port E pin 12; can be configured for alternate functions including SPI4_CLK and other peripherals |
| 66 | PE13 | bidirectional | GPIO Port E pin 13; can be configured for alternate functions including SPI4_MOSI and other peripherals |
| 67 | PE14 | bidirectional | GPIO Port E pin 14; can be configured for alternate functions including SPI4_MISO and other peripherals |
| 68 | PE15 | bidirectional | GPIO Port E pin 15; can be configured for alternate functions including SPI4_NSS and other peripherals |
| 69 | PB10 | bidirectional | GPIO Port B pin 10; can be configured for alternate functions including I2C2_SCL, USART3_TX, and other peripherals |
| 70 | PB11 | bidirectional | GPIO Port B pin 11; can be configured for alternate functions including I2C2_SDA, USART3_RX, and other peripherals |
| 71 | VCAP_1 | power_in | Supply voltage capacitor for internal voltage regulator; 1-10 µF capacitor to ground required |
| 72 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
| 73 | PB12 | bidirectional | GPIO Port B pin 12; can be configured for alternate functions including SPI2_NSS, I2C2_SMBA, and other peripherals |
| 74 | PB13 | bidirectional | GPIO Port B pin 13; can be configured for alternate functions including SPI2_CLK and other peripherals |
| 75 | PB14 | bidirectional | GPIO Port B pin 14; can be configured for alternate functions including SPI2_MISO and other peripherals |
| 76 | PB15 | bidirectional | GPIO Port B pin 15; can be configured for alternate functions including SPI2_MOSI and other peripherals |
| 77 | PD8 | bidirectional | GPIO Port D pin 8; can be configured for alternate functions including USART3_TX and other peripherals |
| 78 | PD9 | bidirectional | GPIO Port D pin 9; can be configured for alternate functions including USART3_RX and other peripherals |
| 79 | PD10 | bidirectional | GPIO Port D pin 10; can be configured for alternate functions including USART3_CK and other peripherals |
| 80 | PD11 | bidirectional | GPIO Port D pin 11; can be configured for alternate functions including USART3_CTS and other peripherals |
| 81 | PD12 | bidirectional | GPIO Port D pin 12; can be configured for alternate functions including USART3_RTS and other peripherals |
| 82 | PD13 | bidirectional | GPIO Port D pin 13; can be configured for alternate functions including TIM4_CH1 and other peripherals |
| 83 | VSS | power_in | Ground reference; must be connected to system ground |
| 84 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
| 85 | PD14 | bidirectional | GPIO Port D pin 14; can be configured for alternate functions including TIM4_CH2 and other peripherals |
| 86 | PD15 | bidirectional | GPIO Port D pin 15; can be configured for alternate functions including TIM4_CH3 and other peripherals |
| 87 | PG2 | bidirectional | GPIO Port G pin 2; can be configured for alternate functions including SPI4_MOSI and other peripherals |
| 88 | PG3 | bidirectional | GPIO Port G pin 3; can be configured for alternate functions including SPI4_MISO and other peripherals |
| 89 | PG4 | bidirectional | GPIO Port G pin 4; can be configured for alternate functions including SPI4_NSS and other peripherals |
| 90 | PG5 | bidirectional | GPIO Port G pin 5; can be configured for alternate functions and other peripherals |
| 91 | PG6 | bidirectional | GPIO Port G pin 6; can be configured for alternate functions and other peripherals |
| 92 | PG7 | bidirectional | GPIO Port G pin 7; can be configured for alternate functions and other peripherals |
| 93 | PG8 | bidirectional | GPIO Port G pin 8; can be configured for alternate functions and other peripherals |
| 94 | VSS | power_in | Ground reference; must be connected to system ground |
| 95 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
| 96 | PC6 | bidirectional | GPIO Port C pin 6; can be configured for alternate functions including TIM8_CH1 and other peripherals |
| 97 | PC7 | bidirectional | GPIO Port C pin 7; can be configured for alternate functions including TIM8_CH2 and other peripherals |
| 98 | PC8 | bidirectional | GPIO Port C pin 8; can be configured for alternate functions including TIM8_CH3 and other peripherals |
| 99 | PC9 | bidirectional | GPIO Port C pin 9; can be configured for alternate functions including TIM8_CH4 and other peripherals |
| 100 | PA8 | bidirectional | GPIO Port A pin 8; can be configured for alternate functions including USART1_CK, MCO1, and other peripherals |
| 101 | PA9 | bidirectional | GPIO Port A pin 9; can be configured for alternate functions including USART1_TX and other peripherals |
| 102 | PA10 | bidirectional | GPIO Port A pin 10; can be configured for alternate functions including USART1_RX and other peripherals |
| 103 | PA11 | bidirectional | GPIO Port A pin 11; can be configured for alternate functions including USB_DM and other peripherals |
| 104 | PA12 | bidirectional | GPIO Port A pin 12; can be configured for alternate functions including USB_DP and other peripherals |
| 105 | PA13 | bidirectional | GPIO Port A pin 13; can be configured for alternate functions including JTAG_TMS, SWDIO, and other peripherals |
| 106 | VCAP_2 | power_in | |
| 107 | VSS | power_in | Ground reference; must be connected to system ground |
| 108 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
| 109 | PA14 | bidirectional | GPIO Port A pin 14; can be configured for alternate functions including JTAG_TCO, SWCLK, and other peripherals |
| 110 | PA15 | bidirectional | GPIO Port A pin 15; can be configured for alternate functions including JTAG_TDI and other peripherals |
| 111 | PC10 | bidirectional | GPIO Port C pin 10; can be configured for alternate functions including USART3_TX and other peripherals |
| 112 | PC11 | bidirectional | GPIO Port C pin 11; can be configured for alternate functions including USART3_RX and other peripherals |
| 113 | PC12 | bidirectional | GPIO Port C pin 12; can be configured for alternate functions including USART3_CK and other peripherals |
| 114 | PD0 | bidirectional | GPIO Port D pin 0; can be configured for alternate functions including CAN1_RX and other peripherals |
| 115 | PD1 | bidirectional | GPIO Port D pin 1; can be configured for alternate functions including CAN1_TX and other peripherals |
| 116 | PD2 | bidirectional | GPIO Port D pin 2; can be configured for alternate functions including USART5_RX and other peripherals |
| 117 | PD3 | bidirectional | GPIO Port D pin 3; can be configured for alternate functions including USART2_CTS and other peripherals |
| 118 | PD4 | bidirectional | GPIO Port D pin 4; can be configured for alternate functions including USART2_RTS and other peripherals |
| 119 | PD5 | bidirectional | GPIO Port D pin 5; can be configured for alternate functions including USART2_TX and other peripherals |
| 120 | VSS | power_in | Ground reference; must be connected to system ground |
| 121 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
| 122 | PD6 | bidirectional | GPIO Port D pin 6; can be configured for alternate functions including USART2_RX and other peripherals |
| 123 | PD7 | bidirectional | GPIO Port D pin 7; can be configured for alternate functions including USART2_CK and other peripherals |
| 124 | PG9 | bidirectional | GPIO Port G pin 9; can be configured for alternate functions and other peripherals |
| 125 | PG10 | bidirectional | GPIO Port G pin 10; can be configured for alternate functions and other peripherals |
| 126 | PG11 | bidirectional | GPIO Port G pin 11; can be configured for alternate functions and other peripherals |
| 127 | PG12 | bidirectional | GPIO Port G pin 12; can be configured for alternate functions and other peripherals |
| 128 | PG13 | bidirectional | GPIO Port G pin 13; can be configured for alternate functions and other peripherals |
| 129 | PG14 | bidirectional | GPIO Port G pin 14; can be configured for alternate functions and other peripherals |
| 130 | VSS | power_in | Ground reference; must be connected to system ground |
| 131 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
| 132 | PG15 | bidirectional | GPIO Port G pin 15; can be configured for alternate functions and other peripherals |
| 133 | PB3 | bidirectional | GPIO Port B pin 3; can be configured for alternate functions including SPI1_CLK, JTAG_TDO, and other peripherals |
| 134 | PB4 | bidirectional | GPIO Port B pin 4; can be configured for alternate functions including SPI1_MISO, JTAG_TRST, and other peripherals |
| 135 | PB5 | bidirectional | GPIO Port B pin 5; can be configured for alternate functions including SPI1_MOSI and other peripherals |
| 136 | PB6 | bidirectional | GPIO Port B pin 6; can be configured for alternate functions including I2C1_SCL, USART1_TX, and other peripherals |
| 137 | PB7 | bidirectional | GPIO Port B pin 7; can be configured for alternate functions including I2C1_SDA, USART1_RX, and other peripherals |
| 138 | BOOT0 | input | Boot mode selection pin; sampled at device startup to determine boot source |
| 139 | PB8 | bidirectional | GPIO Port B pin 8; can be configured for alternate functions including I2C1_SCL, TIM4_CH3, and other peripherals |
| 140 | PB9 | bidirectional | GPIO Port B pin 9; can be configured for alternate functions including I2C1_SDA, TIM4_CH4, and other peripherals |
| 141 | PE0 | bidirectional | GPIO Port E pin 0; can be configured for alternate functions including TIM4_ETR and other peripherals |
| 142 | PE1 | bidirectional | GPIO Port E pin 1; can be configured for alternate functions including TIM1_CH1N and other peripherals |
| 143 | PDR_ON | input | |
| 144 | VDD | power_in | Main supply voltage (1.65 V to 3.6 V); primary power supply for the device |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-144(20x20) |
| Category | Embedded Processors & Controllers |
| Pins | 144 |
CAD (KiCad official)
- Symbol:
STM32F427ZIT6 - Footprint:
Package_QFP:LQFP-144_20x20mm_P0.5mm - 3D model: LQFP-144(20x20) (KiCad packages3D, STEP)
- 3D model files:
stm32f427zit6-etched.step/stm32f427zit6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f427zit6.step/stm32f427zit6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (226 pp, sha256
9eccb942b0df757c, retrieved 2026-09-29, 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).