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STM32L4R5ZIT6

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STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-144(20x20). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.

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STM32L4R5ZIT6

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-144(20x20)

STM32L4R5ZIT6 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 5 V-tolerant I/O (FT_l, LCD function supplied by VLCD). Alternate functions: TRACECK, TIM3_ETR, SAI1_CK1, TSC_G7_IO1, LCD_R0, FMC_A23, SAI1_MCLK_A, EVENTOUT.
2 PE3 bidirectional 5 V-tolerant I/O (FT_l, LCD function supplied by VLCD). Alternate functions: TRACED0, TIM3_CH1, OCTOSPIM_P1_DQS, TSC_G7_IO2, LCD_R1, FMC_A19, SAI1_SD_B, EVENTOUT.
3 PE4 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TRACED1, TIM3_CH2, SAI1_D2, DFSDM1_DATIN3, TSC_G7_IO3, DCMI_D4, LCD_B0, FMC_A20, SAI1_FS_A, EVENTOUT.
4 PE5 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TRACED2, TIM3_CH3, SAI1_CK2, DFSDM1_CKIN3, TSC_G7_IO4, DCMI_D6, LCD_G0, FMC_A21, SAI1_SCK_A, EVENTOUT.
5 PE6 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TRACED3, TIM3_CH4, SAI1_D1, DCMI_D7, LCD_G1, FMC_A22, SAI1_SD_A, EVENTOUT; additional functions RTC_TAMP3, WKUP3.
6 VBAT power_in Backup supply, 1.55 V to 3.6 V, for the RTC, the external 32 kHz oscillator and the backup registers when VDD is not present.
7 PC13 bidirectional 5 V-tolerant I/O supplied through the power switch, which sinks only 3 mA: output speed must not exceed 2 MHz with a 30 pF maximum load and the pin must not be used as a current source. Additional functions: RTC_TAMP1/RTC_TS/RTC_OUT, WKUP2.
8 PC14-OSC32_IN bidirectional 5 V-tolerant I/O supplied through the power switch (same limits as PC13: 3 mA sink, 2 MHz maximum speed with 30 pF load, no current-source use); also OSC32_IN for the 32 kHz crystal.
9 PC15-OSC32_OUT bidirectional 5 V-tolerant I/O supplied through the power switch (same limits as PC13: 3 mA sink, 2 MHz maximum speed with 30 pF load, no current-source use); also OSC32_OUT for the 32 kHz crystal.
10 PF0 bidirectional 5 V-tolerant I/O, Fm+ capable (FT_f). Alternate functions: I2C2_SDA, OCTOSPIM_P2_IO0, FMC_A0, EVENTOUT.
11 PF1 bidirectional 5 V-tolerant I/O, Fm+ capable (FT_f). Alternate functions: I2C2_SCL, OCTOSPIM_P2_IO1, FMC_A1, EVENTOUT.
12 PF2 bidirectional 5 V-tolerant I/O (FT). Alternate functions: I2C2_SMBA, OCTOSPIM_P2_IO2, FMC_A2, EVENTOUT.
13 PF3 bidirectional 5 V-tolerant I/O (FT). Alternate functions: OCTOSPIM_P2_IO3, FMC_A3, EVENTOUT.
14 PF4 bidirectional 5 V-tolerant I/O (FT). Alternate functions: OCTOSPIM_P2_CLK, FMC_A4, EVENTOUT.
15 PF5 bidirectional 5 V-tolerant I/O (FT). Alternate functions: FMC_A5, EVENTOUT.
16 VSS power_in Ground pin of the device; must be connected to the ground plane.
17 VDD power_in Main supply, 1.71 V to 3.6 V, for the I/Os, the internal regulator and the system analog blocks.
18 PF6 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM5_ETR, TIM5_CH1, OCTOSPIM_P1_IO3, SAI1_SD_B, EVENTOUT.
19 PF7 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM5_CH2, OCTOSPIM_P1_IO2, SAI1_MCLK_B, EVENTOUT.
20 PF8 bidirectional 5 V-tolerant I/O (FT, see note 3 on non-bonded NC GPIOs in other packages). Alternate functions: TIM5_CH3, OCTOSPIM_P1_IO0, SAI1_SCK_B, EVENTOUT.
21 PF9 bidirectional 5 V-tolerant I/O (FT, see note 3 on non-bonded NC GPIOs in other packages). Alternate functions: TIM5_CH4, OCTOSPIM_P1_IO1, SAI1_FS_B, TIM15_CH1, EVENTOUT.
22 PF10 bidirectional 5 V-tolerant I/O (FT). Alternate functions: OCTOSPIM_P1_CLK, DFSDM1_CKOUT, DCMI_D11, SAI1_D3, TIM15_CH2, EVENTOUT.
23 PH0-OSC_IN bidirectional 5 V-tolerant I/O (FT); also OSC_IN, the high-speed oscillator input. Alternate function: EVENTOUT.
24 PH1-OSC_OUT bidirectional 5 V-tolerant I/O (FT); also OSC_OUT, the high-speed oscillator output. Alternate function: EVENTOUT.
25 NRST bidirectional Bidirectional reset pin with embedded weak pull-up resistor.
26 PC0 bidirectional 5 V-tolerant I/O (FT_fla: Fm+ capable, LCD function supplied by VLCD, analog switch supplied by VDDA). Alternate functions: LPTIM1_IN1, I2C3_SCL, DFSDM1_DATIN4, LPUART1_RX, SAI2_FS_A, LPTIM2_IN1, EVENTOUT; additional function ADC1_IN1.
27 PC1 bidirectional 5 V-tolerant I/O (FT_fla: Fm+ capable, LCD function supplied by VLCD, analog switch supplied by VDDA). Alternate functions: TRACED0, LPTIM1_OUT, SPI2_MOSI, I2C3_SDA, DFSDM1_CKIN4, LPUART1_TX, OCTOSPIM_P1_IO4, SAI1_SD_A, EVENTOUT; additional function ADC1_IN2.
28 PC2 bidirectional 5 V-tolerant I/O (FT_la: LCD function supplied by VLCD, analog switch supplied by VDDA). Alternate functions: LPTIM1_IN2, SPI2_MISO, DFSDM1_CKOUT, OCTOSPIM_P1_IO5, EVENTOUT; additional function ADC1_IN3.
29 PC3 bidirectional 5 V-tolerant I/O (FT_a: analog switch supplied by VDDA). Alternate functions: LPTIM1_ETR, SAI1_D1, SPI2_MOSI, OCTOSPIM_P1_IO6, SAI1_SD_A, LPTIM2_ETR, EVENTOUT; additional function ADC1_IN4.
30 VSSA power_in Analog ground pin for the ADCs, DACs, OPAMPs, COMPs and voltage reference buffer.
31 VREF- power_in Negative reference voltage for the ADC and DAC; VREF- must always be equal to VSSA.
32 VREF+ power_in Positive reference voltage for the ADC and DAC: must be between 2 V and VDDA when VDDA is 2 V or higher, and equal to VDDA when VDDA is below 2 V; it is also the output of the internal voltage reference buffer (VREFBUF_OUT) when enabled.
33 VDDA power_in Analog supply: 1.62 V (ADC/COMP) or 1.8 V (DAC/OPAMP) to 3.6 V, with 2.4 V minimum when the voltage reference buffer is used.
34 PA0 bidirectional 5 V-tolerant I/O (FT_a: analog switch supplied by VDDA). Alternate functions: TIM2_CH1, TIM5_CH1, TIM8_ETR, USART2_CTS_NSS, UART4_TX, SAI1_EXTCLK, TIM2_ETR, EVENTOUT; additional functions OPAMP1_VINP, ADC1_IN5, RTC_TAMP2, WKUP1.
35 PA1 bidirectional 5 V-tolerant I/O (FT_la: LCD function supplied by VLCD, analog switch supplied by VDDA). Alternate functions: TIM2_CH2, TIM5_CH2, I2C1_SMBA, SPI1_SCK, USART2_RTS_DE, UART4_RX, OCTOSPIM_P1_DQS, TIM15_CH1N, EVENTOUT; additional functions OPAMP1_VINM, ADC1_IN6.
36 PA2 bidirectional 5 V-tolerant I/O (FT_la: LCD function supplied by VLCD, analog switch supplied by VDDA). Alternate functions: TIM2_CH3, TIM5_CH3, USART2_TX, LPUART1_TX, OCTOSPIM_P1_NCS, SAI2_EXTCLK, TIM15_CH1, EVENTOUT; additional functions ADC1_IN7, WKUP4/LSCO.
37 PA3 bidirectional 3.6 V-tolerant I/O (TT_a: analog switch supplied by VDDA). Alternate functions: TIM2_CH4, TIM5_CH4, SAI1_CK1, USART2_RX, LPUART1_RX, OCTOSPIM_P1_CLK, SAI1_MCLK_A, TIM15_CH2, EVENTOUT; additional functions OPAMP1_VOUT, ADC1_IN8.
38 VSS power_in Ground pin of the device; must be connected to the ground plane.
39 VDD power_in Main supply, 1.71 V to 3.6 V, for the I/Os, the internal regulator and the system analog blocks.
40 PA4 bidirectional 3.6 V-tolerant I/O (TT_a: analog switch supplied by VDDA). Alternate functions: OCTOSPIM_P1_NCS, SPI1_NSS, SPI3_NSS, USART2_CK, DCMI_HSYNC, SAI1_FS_B, LPTIM2_OUT, EVENTOUT; additional functions ADC1_IN9, DAC1_OUT1.
41 PA5 bidirectional 3.6 V-tolerant I/O (TT_a: analog switch supplied by VDDA). Alternate functions: TIM2_CH1, TIM2_ETR, TIM8_CH1N, SPI1_SCK, LPTIM2_ETR, EVENTOUT; additional functions ADC1_IN10, DAC1_OUT2.
42 PA6 bidirectional 5 V-tolerant I/O (FT_a: analog switch supplied by VDDA). Alternate functions: TIM1_BKIN, TIM3_CH1, TIM8_BKIN, DCMI_PIXCLK, SPI1_MISO, USART3_CTS_NSS, LPUART1_CTS, OCTOSPIM_P1_IO3, TIM16_CH1, EVENTOUT; additional functions OPAMP2_VINP, ADC1_IN11.
43 PA7 bidirectional 5 V-tolerant I/O (FT_fla: Fm+ capable, LCD function supplied by VLCD, analog switch supplied by VDDA). Alternate functions: TIM1_CH1N, TIM3_CH2, TIM8_CH1N, I2C3_SCL, SPI1_MOSI, OCTOSPIM_P1_IO2, TIM17_CH1, EVENTOUT; additional functions OPAMP2_VINM, ADC1_IN12.
44 PC4 bidirectional 5 V-tolerant I/O (FT_a: analog switch supplied by VDDA). Alternate functions: USART3_TX, OCTOSPIM_P1_IO7, EVENTOUT; additional functions COMP1_INM, ADC1_IN13.
45 PC5 bidirectional 5 V-tolerant I/O (FT_a: analog switch supplied by VDDA). Alternate functions: SAI1_D3, USART3_RX, EVENTOUT; additional functions COMP1_INP, ADC1_IN14, WKUP5.
46 PB0 bidirectional 3.6 V-tolerant I/O (TT_la: LCD function supplied by VLCD, analog switch supplied by VDDA). Alternate functions: TIM1_CH2N, TIM3_CH3, TIM8_CH2N, SPI1_NSS, USART3_CK, OCTOSPIM_P1_IO1, COMP1_OUT, SAI1_EXTCLK, EVENTOUT; additional functions OPAMP2_VOUT, ADC1_IN15.
47 PB1 bidirectional 5 V-tolerant I/O (FT_a: analog switch supplied by VDDA). Alternate functions: TIM1_CH3N, TIM3_CH4, TIM8_CH3N, DFSDM1_DATIN0, USART3_RTS_DE, LPUART1_RTS_DE, OCTOSPIM_P1_IO0, LPTIM2_IN1, EVENTOUT; additional functions COMP1_INM, ADC1_IN16.
48 PB2 bidirectional 5 V-tolerant I/O (FT_a: analog switch supplied by VDDA). Alternate functions: RTC_OUT, LPTIM1_OUT, I2C3_SMBA, DFSDM1_CKIN0, OCTOSPIM_P1_DQS, LCD_B1, EVENTOUT; additional function COMP1_INP.
49 PF11 bidirectional 5 V-tolerant I/O (FT). Alternate functions: LCD_DE, DCMI_D12, DSI_TE, EVENTOUT.
50 PF12 bidirectional 5 V-tolerant I/O (FT). Alternate functions: OCTOSPIM_P2_DQS, LCD_B0, FMC_A6, EVENTOUT.
51 VSS power_in Ground pin of the device; must be connected to the ground plane.
52 VDD power_in Main supply, 1.71 V to 3.6 V, for the I/Os, the internal regulator and the system analog blocks.
53 PF13 bidirectional 5 V-tolerant I/O (FT). Alternate functions: I2C4_SMBA, DFSDM1_DATIN6, LCD_B1, FMC_A7, EVENTOUT.
54 PF14 bidirectional 5 V-tolerant I/O, Fm+ capable (FT_f). Alternate functions: I2C4_SCL, DFSDM1_CKIN6, TSC_G8_IO1, LCD_G0, FMC_A8, EVENTOUT.
55 PF15 bidirectional 5 V-tolerant I/O, Fm+ capable (FT_f). Alternate functions: I2C4_SDA, TSC_G8_IO2, LCD_G1, FMC_A9, EVENTOUT.
56 PG0 bidirectional 5 V-tolerant I/O (FT). Alternate functions: OCTOSPIM_P2_IO4, TSC_G8_IO3, FMC_A10, EVENTOUT.
57 PG1 bidirectional 5 V-tolerant I/O (FT). Alternate functions: OCTOSPIM_P2_IO5, TSC_G8_IO4, FMC_A11, EVENTOUT.
58 PE7 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM1_ETR, DFSDM1_DATIN2, LCD_B6, FMC_D4, SAI1_SD_B, EVENTOUT.
59 PE8 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM1_CH1N, DFSDM1_CKIN2, LCD_B7, FMC_D5, SAI1_SCK_B, EVENTOUT.
60 PE9 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM1_CH1, DFSDM1_CKOUT, LCD_G2, FMC_D6, SAI1_FS_B, EVENTOUT.
61 VSS power_in Ground pin of the device; must be connected to the ground plane.
62 VDD power_in Main supply, 1.71 V to 3.6 V, for the I/Os, the internal regulator and the system analog blocks.
63 PE10 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM1_CH2N, DFSDM1_DATIN4, TSC_G5_IO1, OCTOSPIM_P1_CLK, LCD_G3, FMC_D7, SAI1_MCLK_B, EVENTOUT.
64 PE11 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM1_CH2, DFSDM1_CKIN4, TSC_G5_IO2, OCTOSPIM_P1_NCS, LCD_G4, FMC_D8, EVENTOUT.
65 PE12 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM1_CH3N, SPI1_NSS, DFSDM1_DATIN5, TSC_G5_IO3, OCTOSPIM_1_IO0 (as printed in Table 15), LCD_G5, FMC_D9, EVENTOUT.
66 PE13 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM1_CH3, SPI1_SCK, DFSDM1_CKIN5, TSC_G5_IO4, OCTOSPIM_P1_IO1, LCD_G6, FMC_D10, EVENTOUT.
67 PE14 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM1_CH4, TIM1_BKIN2, SPI1_MISO, OCTOSPIM_P1_IO2, LCD_G7, FMC_D11, EVENTOUT.
68 PE15 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM1_BKIN, SPI1_MOSI, OCTOSPIM_P1_IO3, LCD_R2, FMC_D12, EVENTOUT.
69 PB10 bidirectional 5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD). Alternate functions: TIM2_CH3, I2C4_SCL, I2C2_SCL, SPI2_SCK, DFSDM1_DATIN7, USART3_TX, LPUART1_RX, TSC_SYNC, OCTOSPIM_P1_CLK, COMP1_OUT, SAI1_SCK_A, EVENTOUT.
70 PB11 bidirectional 5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD). Alternate functions: TIM2_CH4, I2C4_SDA, I2C2_SDA, DFSDM1_CKIN7, USART3_RX, LPUART1_TX, OCTOSPIM_P1_NCS, DSI_TE, COMP2_OUT, EVENTOUT.
71 VSS power_in Ground pin of the device; must be connected to the ground plane.
72 VDD power_in Main supply, 1.71 V to 3.6 V, for the I/Os, the internal regulator and the system analog blocks.
73 PB12 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM1_BKIN, I2C2_SMBA, SPI2_NSS, DFSDM1_DATIN1, USART3_CK, LPUART1_RTS_DE, TSC_G1_IO1, SAI2_FS_A, TIM15_BKIN, EVENTOUT.
74 PB13 bidirectional 5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD). Alternate functions: TIM1_CH1N, I2C2_SCL, SPI2_SCK, DFSDM1_CKIN1, USART3_CTS_NSS, LPUART1_CTS, TSC_G1_IO2, SAI2_SCK_A, TIM15_CH1N, EVENTOUT.
75 PB14 bidirectional 5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD). Alternate functions: TIM1_CH2N, TIM8_CH2N, I2C2_SDA, SPI2_MISO, DFSDM1_DATIN2, USART3_RTS_DE, TSC_G1_IO3, SAI2_MCLK_A, TIM15_CH1, EVENTOUT.
76 PB15 bidirectional 5 V-tolerant I/O (FT). Alternate functions: RTC_REFIN, TIM1_CH3N, TIM8_CH3N, SPI2_MOSI, DFSDM1_CKIN2, TSC_G1_IO4, SAI2_SD_A, TIM15_CH2, EVENTOUT.
77 PD8 bidirectional 5 V-tolerant I/O (FT). Alternate functions: USART3_TX, DCMI_HSYNC, LCD_R3, FMC_D13, EVENTOUT.
78 PD9 bidirectional 5 V-tolerant I/O (FT). Alternate functions: USART3_RX, DCMI_PIXCLK, LCD_R4, FMC_D14, SAI2_MCLK_A, EVENTOUT.
79 PD10 bidirectional 5 V-tolerant I/O (FT). Alternate functions: USART3_CK, TSC_G6_IO1, LCD_R5, FMC_D15, SAI2_SCK_A, EVENTOUT.
80 PD11 bidirectional 5 V-tolerant I/O (FT). Alternate functions: I2C4_SMBA, USART3_CTS_NSS, TSC_G6_IO2, LCD_R6, FMC_A16, SAI2_SD_A, LPTIM2_ETR, EVENTOUT.
81 PD12 bidirectional 5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD). Alternate functions: TIM4_CH1, I2C4_SCL, USART3_RTS_DE, TSC_G6_IO3, LCD_R7, FMC_A17, SAI2_FS_A, LPTIM2_IN1, EVENTOUT.
82 PD13 bidirectional 5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD). Alternate functions: TIM4_CH2, I2C4_SDA, TSC_G6_IO4, FMC_A18, LPTIM2_OUT, EVENTOUT.
83 VSS power_in Ground pin of the device; must be connected to the ground plane.
84 VDD power_in Main supply, 1.71 V to 3.6 V, for the I/Os, the internal regulator and the system analog blocks.
85 PD14 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM4_CH3, LCD_B2, FMC_D0, EVENTOUT.
86 PD15 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM4_CH4, LCD_B3, FMC_D1, EVENTOUT.
87 PG2 bidirectional I/O supplied only by VDDIO2 (FT_s, 5 V-tolerant). Alternate functions: SPI1_SCK, FMC_A12, SAI2_SCK_B, EVENTOUT.
88 PG3 bidirectional I/O supplied only by VDDIO2 (FT_s, 5 V-tolerant). Alternate functions: SPI1_MISO, FMC_A13, SAI2_FS_B, EVENTOUT.
89 PG4 bidirectional I/O supplied only by VDDIO2 (FT_s, 5 V-tolerant). Alternate functions: SPI1_MOSI, FMC_A14, SAI2_MCLK_B, EVENTOUT.
90 PG5 bidirectional I/O supplied only by VDDIO2 (FT_s, 5 V-tolerant). Alternate functions: SPI1_NSS, LPUART1_CTS, FMC_A15, SAI2_SD_B, EVENTOUT.
91 PG6 bidirectional I/O supplied only by VDDIO2 (FT_s, 5 V-tolerant). Alternate functions: OCTOSPIM_P1_DQS, I2C3_SMBA, LPUART1_RTS_DE, LCD_R1, DSI_TE, EVENTOUT.
92 PG7 bidirectional 5 V-tolerant I/O supplied by VDDIO2 (FT_fs, Fm+ capable). Alternate functions: SAI1_CK1, I2C3_SCL, OCTOSPIM_P2_DQS, DFSDM1_CKOUT, LPUART1_TX, FMC_INT, SAI1_MCLK_A, EVENTOUT.
93 PG8 bidirectional 5 V-tolerant I/O supplied by VDDIO2 (FT_fs, Fm+ capable). Alternate functions: I2C3_SDA, LPUART1_RX, EVENTOUT.
94 VSS power_in Ground pin of the device; must be connected to the ground plane.
95 VDDIO2 power_in Supply for the 14 I/Os of port PG[15:2], 1.08 V to 3.6 V when at least one of them is used.
96 PC6 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM3_CH1, TIM8_CH1, DFSDM1_CKIN3, SDMMC1_D0DIR, TSC_G4_IO1, DCMI_D0, LCD_R0, SDMMC1_D6, SAI2_MCLK_A, EVENTOUT.
97 PC7 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM3_CH2, TIM8_CH2, DFSDM1_DATIN3, SDMMC1_D123DIR, TSC_G4_IO2, DCMI_D1, LCD_R1, SDMMC1_D7, SAI2_MCLK_B, EVENTOUT.
98 PC8 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM3_CH3, TIM8_CH3, TSC_G4_IO3, DCMI_D2, SDMMC1_D0, EVENTOUT.
99 PC9 bidirectional 5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD). Alternate functions: TRACED0, TIM8_BKIN2, TIM3_CH4, TIM8_CH4, DCMI_D3, I2C3_SDA, TSC_G4_IO4, OTG_FS_NOE, SDMMC1_D1, SAI2_EXTCLK, EVENTOUT.
100 PA8 bidirectional 5 V-tolerant I/O (FT_f: Fm+ capable). Alternate functions: MCO, TIM1_CH1, SAI1_CK2, USART1_CK, OTG_FS_SOF, SAI1_SCK_A, LPTIM2_OUT, EVENTOUT.
101 PA9 bidirectional 5 V-tolerant I/O (FT_flu: Fm+ capable, LCD function supplied by VLCD, USB function supplied by VDDUSB). Alternate functions: TIM1_CH2, SPI2_SCK, DCMI_D0, USART1_TX, SAI1_FS_A, TIM15_BKIN, EVENTOUT; additional function OTG_FS_VBUS.
102 PA10 bidirectional 5 V-tolerant I/O (FT_flu: Fm+ capable, LCD function supplied by VLCD, USB function supplied by VDDUSB). Alternate functions: TIM1_CH3, SAI1_D1, DCMI_D1, USART1_RX, OTG_FS_ID, SAI1_SD_A, TIM17_BKIN, EVENTOUT.
103 PA11 bidirectional 5 V-tolerant I/O (FT_u: USB function supplied by VDDUSB). Alternate functions: TIM1_CH4, TIM1_BKIN2, SPI1_MISO, USART1_CTS_NSS, CAN1_RX, OTG_FS_DM, EVENTOUT.
104 PA12 bidirectional 5 V-tolerant I/O (FT_u: USB function supplied by VDDUSB). Alternate functions: TIM1_ETR, SPI1_MOSI, USART1_RTS_DE, CAN1_TX, OTG_FS_DP, EVENTOUT.
105 PA13 bidirectional 5 V-tolerant I/O (FT), JTMS/SWDIO debug function after reset with internal pull-up enabled (note 4). Alternate functions: IR_OUT, OTG_FS_NOE, SAI1_SD_B, EVENTOUT.
106 VDDUSB power_in USB transceiver supply, 3.0 V to 3.6 V when USB is used.
107 VSS power_in Ground pin of the device; must be connected to the ground plane.
108 VDD power_in Main supply, 1.71 V to 3.6 V, for the I/Os, the internal regulator and the system analog blocks.
109 PA14 bidirectional 5 V-tolerant I/O (FT), JTCK/SWCLK debug function after reset with internal pull-down enabled (note 4). Alternate functions: JTCK/SWCLK, LPTIM1_OUT, I2C1_SMBA, I2C4_SMBA, OTG_FS_SOF, SAI1_FS_B, EVENTOUT.
110 PA15 (JTDI) bidirectional 5 V-tolerant I/O (FT), JTDI debug function after reset with internal pull-up enabled (note 4). Alternate functions: JTDI, TIM2_CH1, TIM2_ETR, USART2_RX, SPI1_NSS, SPI3_NSS, USART3_RTS_DE, UART4_RTS_DE, TSC_G3_IO1, SAI2_FS_B, EVENTOUT.
111 PC10 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TRACED1, SPI3_SCK, USART3_TX, UART4_TX, TSC_G3_IO2, DCMI_D8, SDMMC1_D2, SAI2_SCK_B, EVENTOUT.
112 PC11 bidirectional 5 V-tolerant I/O (FT). Alternate functions: DCMI_D2, OCTOSPIM_P1_NCS, SPI3_MISO, USART3_RX, UART4_RX, TSC_G3_IO3, DCMI_D4, SDMMC1_D3, SAI2_MCLK_B, EVENTOUT.
113 PC12 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TRACED3, SPI3_MOSI, USART3_CK, UART5_TX, TSC_G3_IO4, DCMI_D9, SDMMC1_CK, SAI2_SD_B, EVENTOUT.
114 PD0 bidirectional 5 V-tolerant I/O (FT). Alternate functions: SPI2_NSS, DFSDM1_DATIN7, CAN1_RX, LCD_B4, FMC_D2, EVENTOUT.
115 PD1 bidirectional 5 V-tolerant I/O (FT). Alternate functions: SPI2_SCK, DFSDM1_CKIN7, CAN1_TX, LCD_B5, FMC_D3, EVENTOUT.
116 PD2 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TRACED2, TIM3_ETR, USART3_RTS_DE, UART5_RX, TSC_SYNC, DCMI_D11, SDMMC1_CMD, EVENTOUT.
117 PD3 bidirectional 5 V-tolerant I/O (FT). Alternate functions: SPI2_SCK, DCMI_D5, SPI2_MISO, DFSDM1_DATIN0, USART2_CTS_NSS, OCTOSPIM_P2_NCS, LCD_CLK, FMC_CLK, EVENTOUT.
118 PD4 bidirectional 5 V-tolerant I/O (FT). Alternate functions: SPI2_MOSI, DFSDM1_CKIN0, USART2_RTS_DE, OCTOSPIM_P1_IO4, FMC_NOE, EVENTOUT.
119 PD5 bidirectional 5 V-tolerant I/O (FT). Alternate functions: USART2_TX, OCTOSPIM_P1_IO5, FMC_NWE, EVENTOUT.
120 VSS power_in Ground pin of the device; must be connected to the ground plane.
121 VDD power_in Main supply, 1.71 V to 3.6 V, for the I/Os, the internal regulator and the system analog blocks.
122 PD6 bidirectional 5 V-tolerant I/O (FT). Alternate functions: SAI1_D1, DCMI_D10, SPI3_MOSI, DFSDM1_DATIN1, USART2_RX, OCTOSPIM_P1_IO6, LCD_DE, FMC_NWAIT, SAI1_SD_A, EVENTOUT.
123 PD7 bidirectional 5 V-tolerant I/O (FT). Alternate functions: DFSDM1_CKIN1, USART2_CK, OCTOSPIM_P1_IO7, FMC_NCE/FMC_NE1, EVENTOUT.
124 PG9 bidirectional I/O supplied only by VDDIO2 (FT_s, 5 V-tolerant). Alternate functions: OCTOSPIM_P2_IO6, SPI3_SCK, USART1_TX, FMC_NCE/FMC_NE2, SAI2_SCK_A, TIM15_CH1N, EVENTOUT.
125 PG10 bidirectional I/O supplied only by VDDIO2 (FT_s, 5 V-tolerant). Alternate functions: LPTIM1_IN1, OCTOSPIM_P2_IO7, SPI3_MISO, USART1_RX, FMC_NE3, SAI2_FS_A, TIM15_CH1, EVENTOUT.
126 PG11 bidirectional I/O supplied only by VDDIO2 (FT_s, 5 V-tolerant). Alternate functions: LPTIM1_IN2, OCTOSPIM_P1_IO5, SPI3_MOSI, USART1_CTS_NSS, SAI2_MCLK_A, TIM15_CH2, EVENTOUT.
127 PG12 bidirectional I/O supplied only by VDDIO2 (FT_s, 5 V-tolerant). Alternate functions: LPTIM1_ETR, OCTOSPIM_P2_NCS, SPI3_NSS, USART1_RTS_DE, FMC_NE4, SAI2_SD_A, EVENTOUT.
128 PG13 bidirectional 5 V-tolerant I/O supplied by VDDIO2 (FT_fs, Fm+ capable). Alternate functions: I2C1_SDA, USART1_CK, LCD_R0, FMC_A24, EVENTOUT.
129 PG14 bidirectional 5 V-tolerant I/O supplied by VDDIO2 (FT_fs, Fm+ capable). Alternate functions: I2C1_SCL, LCD_R1, FMC_A25, EVENTOUT.
130 VSS power_in Ground pin of the device; must be connected to the ground plane.
131 VDDIO2 power_in Supply for the 14 I/Os of port PG[15:2], 1.08 V to 3.6 V when at least one of them is used.
132 PG15 bidirectional I/O supplied only by VDDIO2 (FT_s, 5 V-tolerant). Alternate functions: LPTIM1_OUT, I2C1_SMBA, OCTOSPIM_P2_DQS, DCMI_D13, EVENTOUT.
133 PB3 bidirectional 5 V-tolerant I/O (FT_la: LCD function supplied by VLCD, analog switch supplied by VDDA). Alternate functions: JTDO/TRACESWO, TIM2_CH2, SPI1_SCK, SPI3_SCK, USART1_RTS_DE, OTG_FS_CRS_SYNC, SAI1_SCK_B, EVENTOUT; additional function COMP2_INM.
134 PB4 bidirectional 5 V-tolerant I/O (FT_fa: Fm+ capable, analog switch supplied by VDDA), NJTRST debug function after reset with internal pull-up enabled (note 4). Alternate functions: NJTRST, TIM3_CH1, I2C3_SDA, SPI1_MISO, SPI3_MISO, USART1_CTS_NSS, UART5_RTS_DE, TSC_G2_IO1, DCMI_D12, SAI1_MCLK_B, TIM17_BKIN, EVENTOUT; additional function COMP2_INP.
135 PB5 bidirectional 5 V-tolerant I/O (FT_la: LCD function supplied by VLCD, analog switch supplied by VDDA). Alternate functions: LPTIM1_IN1, TIM3_CH2, I2C1_SMBA, SPI1_MOSI, SPI3_MOSI, USART1_CK, UART5_CTS, TSC_G2_IO2, DCMI_D10, COMP2_OUT, SAI1_SD_B, TIM16_BKIN, EVENTOUT.
136 PB6 bidirectional 5 V-tolerant I/O (FT_fa: Fm+ capable, analog switch supplied by VDDA). Alternate functions: LPTIM1_ETR, TIM4_CH1, TIM8_BKIN2, I2C1_SCL, I2C4_SCL, DFSDM1_DATIN5, USART1_TX, TSC_G2_IO3, DCMI_D5, SAI1_FS_B, TIM16_CH1N, EVENTOUT; additional function COMP2_INP.
137 PB7 bidirectional 5 V-tolerant I/O (FT_fla: Fm+ capable, LCD function supplied by VLCD, analog switch supplied by VDDA). Alternate functions: LPTIM1_IN2, TIM4_CH2, TIM8_BKIN, I2C1_SDA, I2C4_SDA, DFSDM1_CKIN5, USART1_RX, UART4_CTS, TSC_G2_IO4, DCMI_VSYNC, DSI_TE, FMC_NL, TIM17_CH1N, EVENTOUT; additional functions COMP2_INM, PVD_IN.
138 PH3-BOOT0 bidirectional 5 V-tolerant I/O (FT) used as the BOOT0 pin; BOOT0 input voltage range is VSS to 9.0 V (Table 18). Alternate function: EVENTOUT.
139 PB8 bidirectional 5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD). Alternate functions: TIM4_CH3, SAI1_CK1, I2C1_SCL, DFSDM1_CKOUT, DFSDM1_DATIN6, SDMMC1_CKIN, CAN1_RX, DCMI_D6, LCD_B1, SDMMC1_D4, SAI1_MCLK_A, TIM16_CH1, EVENTOUT.
140 PB9 bidirectional 5 V-tolerant I/O (FT_fl: Fm+ capable, LCD function supplied by VLCD). Alternate functions: IR_OUT, TIM4_CH4, SAI1_D2, I2C1_SDA, SPI2_NSS, DFSDM1_CKIN6, SDMMC1_CDIR, CAN1_TX, DCMI_D7, SDMMC1_D5, SAI1_FS_A, TIM17_CH1, EVENTOUT.
141 PE0 bidirectional 5 V-tolerant I/O (FT). Alternate functions: TIM4_ETR, DCMI_D2, LCD_HSYNC, FMC_NBL0, TIM16_CH1, EVENTOUT.
142 PE1 bidirectional 5 V-tolerant I/O (FT). Alternate functions: DCMI_D3, LCD_VSYNC, FMC_NBL1, TIM17_CH1, EVENTOUT.
143 VSS power_in Ground pin of the device; must be connected to the ground plane.
144 VDD power_in Main supply, 1.71 V to 3.6 V, for the I/Os, the internal regulator and the system analog blocks.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-144(20x20)
Category Embedded Processors & Controllers
Pins 144

CAD (KiCad official)

  • Symbol: STM32L4R5ZIT6
  • Footprint: Package_QFP:LQFP-144_20x20mm_P0.5mm
  • 3D model: LQFP-144(20x20) (KiCad packages3D, STEP)
  • 3D model files: stm32l4r5zit6-etched.step / stm32l4r5zit6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l4r5zit6.step / stm32l4r5zit6.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (307 pp, sha256 049cc34598b1e11a, retrieved 2026-10-10, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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