component
STM32L073RZT6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownSTM32L073RZT6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)
STM32L073RZT6 from STMicroelectronics, in a LQFP-64(10x10). 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 | VLCD | power_in | LCD voltage supply/reference pin; connect an external decoupling capacitor for the built-in LCD step-up converter. |
| 2 | PC13 | bidirectional | 5V-tolerant (FT) general-purpose I/O; additional functions RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2. |
| 3 | PC14-OSC32_IN | bidirectional | 5V-tolerant (FT) I/O, default/additional function OSC32_IN (32.768 kHz LSE crystal input). |
| 4 | PC15-OSC32_OUT | bidirectional | Standard 3.3V I/O (TC), default/additional function OSC32_OUT (32.768 kHz LSE crystal output). |
| 5 | PH0-OSC_IN | bidirectional | Standard 3.3V I/O (TC); alternate function USB_CRS_SYNC, additional function OSC_IN (HSE crystal input). |
| 6 | PH1-OSC_OUT | bidirectional | Standard 3.3V I/O (TC), additional function OSC_OUT (HSE crystal output). |
| 7 | NRST | bidirectional | Bidirectional reset pin with embedded weak pull-up resistor; driving it low resets the device. |
| 8 | PC0 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions LPTIM1_IN1, LCD_SEG18, EVENTOUT, TSC_G7_IO1, LPUART1_RX, I2C3_SCL; additional function ADC_IN10. |
| 9 | PC1 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions LPTIM1_OUT, LCD_SEG19, EVENTOUT, TSC_G7_IO2, LPUART1_TX, I2C3_SDA; additional function ADC_IN11. |
| 10 | PC2 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions LPTIM1_IN2, LCD_SEG20, SPI2_MISO/I2S2_MCK, TSC_G7_IO3; additional function ADC_IN12. |
| 11 | PC3 | bidirectional | 5V-tolerant I/O (FT); alternate functions LPTIM1_ETR, LCD_SEG21, SPI2_MOSI/I2S2_SD, TSC_G7_IO4; additional function ADC_IN13. |
| 12 | VSSA | power_in | Analog ground supply for ADC, RC oscillators and PLL. |
| 13 | VDDA | power_in | Analog power supply, 1.65 V to 3.6 V, for ADC, RC oscillators and PLL; must be tied to VDD. |
| 14 | PA0 | bidirectional | Standard 3.3V I/O (TC); alternate functions TIM2_CH1, TSC_G1_IO1, USART2_CTS, TIM2_ETR, USART4_TX, COMP1_OUT; additional functions COMP1_INM, ADC_IN0, RTC_TAMP2/WKUP1. |
| 15 | PA1 | bidirectional | 5V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG0, TIM2_CH2, TSC_G1_IO2, USART2_RTS_DE, TIM21_ETR, USART4_RX; additional functions COMP1_INP, ADC_IN1. |
| 16 | PA2 | bidirectional | 5V-tolerant I/O (FT); alternate functions TIM21_CH1, LCD_SEG1, TIM2_CH3, TSC_G1_IO3, USART2_TX, LPUART1_TX, COMP2_OUT; additional functions COMP2_INM, ADC_IN2. |
| 17 | PA3 | bidirectional | 5V-tolerant I/O (FT); alternate functions TIM21_CH2, LCD_SEG2, TIM2_CH4, TSC_G1_IO4, USART2_RX, LPUART1_RX; additional functions COMP2_INP, ADC_IN3. |
| 18 | VSS | power_in | Ground supply pin. |
| 19 | VDD | power_in | External digital power supply, 1.65 V to 3.6 V, for I/Os and internal regulator. |
| 20 | PA4 | bidirectional | Standard 3.3V I/O (TC), reduced touch-sensing sensitivity (note 1); alternate functions SPI1_NSS, TSC_G2_IO1, USART2_CK, TIM22_ETR; additional functions COMP1_INM, COMP2_INM, ADC_IN4, DAC_OUT1. |
| 21 | PA5 | bidirectional | Standard 3.3V I/O (TC); alternate functions SPI1_SCK, TIM2_ETR, TSC_G2_IO2, TIM2_CH1; additional functions COMP1_INM, COMP2_INM, ADC_IN5, DAC_OUT2. |
| 22 | PA6 | bidirectional | 5V-tolerant I/O (FT); alternate functions SPI1_MISO, LCD_SEG3, TIM3_CH1, TSC_G2_IO3, LPUART1_CTS, TIM22_CH1, EVENTOUT, COMP1_OUT; additional function ADC_IN6. |
| 23 | PA7 | bidirectional | 5V-tolerant I/O (FT); alternate functions SPI1_MOSI, LCD_SEG4, TIM3_CH2, TSC_G2_IO4, TIM22_CH2, EVENTOUT, COMP2_OUT; additional function ADC_IN7. |
| 24 | PC4 | bidirectional | 5V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG22, LPUART1_TX; additional function ADC_IN14. |
| 25 | PC5 | bidirectional | 5V-tolerant I/O (FT); alternate functions LCD_SEG23, LPUART1_RX, TSC_G3_IO1; additional function ADC_IN15. |
| 26 | PB0 | bidirectional | 5V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG5, TIM3_CH3, TSC_G3_IO2; additional functions LCD_VLCD3, ADC_IN8, VREF_OUT. |
| 27 | PB1 | bidirectional | 5V-tolerant I/O (FT); alternate functions LCD_SEG6, TIM3_CH4, TSC_G3_IO3, LPUART1_RTS_DE; additional functions ADC_IN9, VREF_OUT. |
| 28 | PB2 | bidirectional | 5V-tolerant I/O (FT); alternate functions LPTIM1_OUT, TSC_G3_IO4, I2C3_SMBA; additional function LCD_VLCD1. |
| 29 | PB10 | bidirectional | 5V-tolerant I/O (FT); alternate functions LCD_SEG10, TIM2_CH3, TSC_SYNC, LPUART1_TX, SPI2_SCK, I2C2_SCL, LPUART1_RX. |
| 30 | PB11 | bidirectional | 5V-tolerant I/O (FT); alternate functions EVENTOUT, LCD_SEG11, TIM2_CH4, TSC_G6_IO1, LPUART1_RX, I2C2_SDA, LPUART1_TX. |
| 31 | VSS | power_in | Ground supply pin. |
| 32 | VDD | power_in | External digital power supply, 1.65 V to 3.6 V, for I/Os and internal regulator. |
| 33 | PB12 | bidirectional | 5V-tolerant I/O (FT); alternate functions SPI2_NSS/I2S2_WS, LCD_SEG12, LPUART1_RTS_DE, TSC_G6_IO2, I2C2_SMBA, EVENTOUT; additional function LCD_VLCD2. |
| 34 | PB13 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions SPI2_SCK/I2S2_CK, LCD_SEG13, MCO, TSC_G6_IO3, LPUART1_CTS, I2C2_SCL, TIM21_CH1. |
| 35 | PB14 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions SPI2_MISO/I2S2_MCK, LCD_SEG14, RTC_OUT, TSC_G6_IO4, LPUART1_RTS_DE, I2C2_SDA, TIM21_CH2. |
| 36 | PB15 | bidirectional | 5V-tolerant I/O (FT); alternate functions SPI2_MOSI/I2S2_SD, LCD_SEG15, RTC_REFIN. |
| 37 | PC6 | bidirectional | 5V-tolerant I/O (FT); alternate functions TIM22_CH1, LCD_SEG24, TIM3_CH1, TSC_G8_IO1. |
| 38 | PC7 | bidirectional | 5V-tolerant I/O (FT); alternate functions TIM22_CH2, LCD_SEG25, TIM3_CH2, TSC_G8_IO2. |
| 39 | PC8 | bidirectional | 5V-tolerant I/O (FT); alternate functions TIM22_ETR, LCD_SEG26, TIM3_CH3, TSC_G8_IO3. |
| 40 | PC9 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions TIM21_ETR, LCD_SEG27, USB_OE/TIM3_CH4, TSC_G8_IO4, I2C3_SDA. |
| 41 | PA8 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions MCO, LCD_COM0, USB_CRS_SYNC, EVENTOUT, USART1_CK, I2C3_SCL. |
| 42 | PA9 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions MCO, LCD_COM1, TSC_G4_IO1, USART1_TX, I2C1_SCL, I2C3_SMBA. |
| 43 | PA10 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions LCD_COM2, TSC_G4_IO2, USART1_RX, I2C1_SDA. |
| 44 | PA11 | bidirectional | 5V-tolerant I/O (FT) powered by VDD_USB; alternate functions SPI1_MISO, EVENTOUT, TSC_G4_IO3, USART1_CTS, COMP1_OUT; additional function USB_DM. |
| 45 | PA12 | bidirectional | 5V-tolerant I/O (FT) powered by VDD_USB; alternate functions SPI1_MOSI, EVENTOUT, TSC_G4_IO4, USART1_RTS_DE, COMP2_OUT; additional function USB_DP. |
| 46 | PA13 | bidirectional | 5V-tolerant I/O (FT); alternate functions SWDIO, USB_OE, LPUART1_RX. |
| 47 | VSS | power_in | Ground supply pin. |
| 48 | VDD_USB | power_in | External power supply, 1.65 V to 3.6 V (≥3.0 V required for USB compliance), for the USB transceiver and USB_DM/USB_DP pins; tie to VDD if USB unused. |
| 49 | PA14 | bidirectional | 5V-tolerant I/O (FT); alternate functions SWCLK, USART2_TX, LPUART1_TX. |
| 50 | PA15 | bidirectional | 5V-tolerant I/O (FT); alternate functions SPI1_NSS, LCD_SEG17, TIM2_ETR, EVENTOUT, USART2_RX, TIM2_CH1, USART4_RTS_DE. |
| 51 | PC10 | bidirectional | 5V-tolerant I/O (FT); alternate functions LPUART1_TX, LCD_COM4/LCD_SEG28/LCD_SEG48, USART4_TX. |
| 52 | PC11 | bidirectional | 5V-tolerant I/O (FT); alternate functions LPUART1_RX, LCD_COM5/LCD_SEG29/LCD_SEG49, USART4_RX. |
| 53 | PC12 | bidirectional | 5V-tolerant I/O (FT); alternate functions LCD_COM6/LCD_SEG30/LCD_SEG50, USART5_TX, USART4_CK. |
| 54 | PD2 | bidirectional | 5V-tolerant I/O (FT); alternate functions LPUART1_RTS_DE, LCD_COM7/LCD_SEG31/LCD_SEG51, TIM3_ETR, USART5_RX. |
| 55 | PB3 | bidirectional | 5V-tolerant I/O (FT); alternate functions SPI1_SCK, LCD_SEG7, TIM2_CH2, TSC_G5_IO1, EVENTOUT, USART1_RTS_DE, USART5_TX; additional function COMP2_INM. |
| 56 | PB4 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions SPI1_MISO, LCD_SEG8, TIM3_CH1, TSC_G5_IO2, TIM22_CH1, USART1_CTS, USART5_RX, I2C3_SDA; additional function COMP2_INP. |
| 57 | PB5 | bidirectional | 5V-tolerant I/O (FT); alternate functions SPI1_MOSI, LCD_SEG9, LPTIM1_IN1, I2C1_SMBA, TIM3_CH2/TIM22_CH2, USART1_CK, USART5_CK/USART5_RTS_DE; additional function COMP2_INP. |
| 58 | PB6 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions USART1_TX, I2C1_SCL, LPTIM1_ETR, TSC_G5_IO3; additional function COMP2_INP. |
| 59 | PB7 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions USART1_RX, I2C1_SDA, LPTIM1_IN2, TSC_G5_IO4, USART4_CTS; additional functions COMP2_INP, PVD_IN. |
| 60 | BOOT0 | input | Dedicated boot-mode select input; sampled at reset with nBOOT1 option bit to choose boot from Flash, System memory (bootloader) or embedded RAM. |
| 61 | PB8 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions LCD_SEG16, TSC_SYNC, I2C1_SCL. |
| 62 | PB9 | bidirectional | 5V-tolerant Fm+ capable I/O (FTf); alternate functions LCD_COM3, EVENTOUT, I2C1_SDA, SPI2_NSS/I2S2_WS. |
| 63 | VSS | power_in | Ground supply pin. |
| 64 | VDD | power_in | External digital power supply, 1.65 V to 3.6 V, for I/Os and internal regulator. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-64(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 64 |
CAD (KiCad official)
- Symbol:
STM32L073RZT6 - Footprint:
Package_QFP:LQFP-64_10x10mm_P0.5mm - 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
stm32l073rzt6-etched.step/stm32l073rzt6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32l073rzt6.step/stm32l073rzt6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (139 pp, sha256
2decb0d22d902a40, retrieved 2026-09-24, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).