component
STM8L052R8T6TR
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, 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
markdownSTM8L052R8T6TR
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)
STM8L052R8T6TR from STMicroelectronics, in a LQFP-64(10x10). 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 | PA0 | bidirectional | Port A0 general-purpose I/O with alternate functions: USART1 synchronous clock, SWIM debug interface input/output, Beep output, Infrared Timer output |
| 2 | NRST/PA1 | input | NRST reset input pin (active low) with internal pull-up; can be configured as PA1 general-purpose output-only GPIO |
| 3 | PA2 | bidirectional | Port A2 GPIO with alternate functions: HSE oscillator input, USART1 transmit, SPI1 MISO |
| 4 | PA3 | bidirectional | Port A3 GPIO with alternate functions: HSE oscillator output, USART1 receive, SPI1 MOSI |
| 5 | PA4 | bidirectional | Port A4 GPIO with alternate functions: Timer 2 break input, LCD common 0, ADC1 input 2; five-volt tolerant |
| 6 | PA5 | bidirectional | Port A5 GPIO with alternate functions: Timer 3 break input, LCD common 1, ADC1 input 1; five-volt tolerant |
| 7 | PA6 | bidirectional | Port A6 GPIO with alternate functions: ADC1 trigger input, LCD common 2, ADC1 input 0; five-volt tolerant |
| 8 | PA7 | bidirectional | Port A7 GPIO with alternate functions: LCD segment 0, Timer 5 channel 1; five-volt tolerant |
| 9 | VSSA/VREF- | power_in | Analog ground and ADC1 negative voltage reference (must be connected to VSS) |
| 10 | VSS1 | power_in | I/O ground voltage supply connection |
| 11 | VDD1 | power_in | Digital power supply 1.8 V to 3.6 V for core and peripherals |
| 12 | VDDA | power_in | Analog power supply 1.8 V to 3.6 V; must be at same potential as VDD |
| 13 | VREF+ | power_in | ADC1 positive voltage reference 2.4 V to 3.6 V (or equal to VDDA) |
| 14 | PG0 | bidirectional | Port G0 GPIO with alternate functions: USART3 receive, Timer 2 break input; five-volt tolerant |
| 15 | PG1 | bidirectional | Port G1 GPIO with alternate functions: USART3 transmit, Timer 3 break input; five-volt tolerant |
| 16 | PG2 | bidirectional | Port G2 GPIO with alternate function: USART3 synchronous clock; five-volt tolerant |
| 17 | PG3 | bidirectional | Port G3 GPIO with alternate function: Timer 3 external trigger; five-volt tolerant |
| 18 | VLCD | passive | LCD booster external capacitor connection 0.1 µF to 2 µF recommended |
| 19 | PE0 | bidirectional | Port E0 GPIO with alternate functions: LCD segment 1, Timer 5 channel 2, RTC tamper 1 input; five-volt tolerant |
| 20 | PE1 | bidirectional | Port E1 GPIO with alternate functions: Timer 1 inverted channel 2, LCD segment 2, RTC tamper 2 input; five-volt tolerant |
| 21 | PE2 | bidirectional | Port E2 GPIO with alternate functions: Timer 1 inverted channel 3, LCD segment 3, RTC tamper 3 input, configurable clock output; five-volt tolerant |
| 22 | PE3 | bidirectional | Port E3 GPIO with alternate functions: LCD segment 4, USART2 receive; five-volt tolerant |
| 23 | PE4 | bidirectional | Port E4 GPIO with alternate functions: LCD segment 5, USART2 transmit; five-volt tolerant |
| 24 | PE5 | bidirectional | Port E5 GPIO with alternate functions: LCD segment 6, ADC1 input 23, USART2 synchronous clock; five-volt tolerant |
| 25 | PD0 | bidirectional | Port D0 GPIO with alternate functions: Timer 3 channel 2, ADC1 trigger, LCD segment 7, ADC1 input 22; five-volt tolerant |
| 26 | PD1 | bidirectional | Port D1 GPIO with alternate functions: Timer 3 external trigger, LCD common 3, ADC1 input 21; five-volt tolerant |
| 27 | PD2 | bidirectional | Port D2 GPIO with alternate functions: Timer 1 channel 1, LCD segment 8, ADC1 input 20; five-volt tolerant |
| 28 | PD3 | bidirectional | Port D3 GPIO with alternate functions: Timer 1 external trigger, LCD segment 9, ADC1 input 19; five-volt tolerant |
| 29 | VDD3 | power_in | I/O power supply 1.8 V to 3.6 V |
| 30 | VSS3 | power_in | I/O ground voltage |
| 31 | PB0 | bidirectional | Port B0 GPIO with alternate functions: Timer 2 channel 1, LCD segment 10, ADC1 input 18; five-volt tolerant; pull-up applied during reset phase |
| 32 | PB1 | bidirectional | Port B1 GPIO with alternate functions: Timer 3 channel 1, LCD segment 11, ADC1 input 17; five-volt tolerant |
| 33 | PB2 | bidirectional | Port B2 GPIO with alternate functions: Timer 2 channel 2, LCD segment 12, ADC1 input 16; five-volt tolerant |
| 34 | PB3 | bidirectional | Port B3 GPIO with alternate functions: Timer 2 external trigger, LCD segment 13, ADC1 input 15; five-volt tolerant |
| 35 | PB4 | bidirectional | Port B4 GPIO with alternate functions: SPI1 slave select, LCD segment 14, ADC1 input 14; five-volt tolerant; pull-up applied during reset phase |
| 36 | PB5 | bidirectional | Port B5 GPIO with alternate functions: SPI1 clock, LCD segment 15, ADC1 input 13; five-volt tolerant |
| 37 | PB6 | bidirectional | Port B6 GPIO with alternate functions: SPI1 MOSI, LCD segment 16, ADC1 input 12; five-volt tolerant |
| 38 | PB7 | bidirectional | Port B7 GPIO with alternate functions: SPI1 MISO, LCD segment 17, ADC1 input 11; five-volt tolerant |
| 39 | PF0 | bidirectional | Port F0 GPIO with alternate functions: ADC1 input 24, USART3 transmit |
| 40 | PF1 | bidirectional | Port F1 GPIO with alternate functions: ADC1 input 25, USART3 receive |
| 41 | PF4 | bidirectional | Port F4 GPIO with alternate functions: LCD segment 36, LCD common 4; five-volt tolerant |
| 42 | PF5 | bidirectional | Port F5 GPIO with alternate functions: LCD segment 37, LCD common 5; five-volt tolerant |
| 43 | PF6 | bidirectional | Port F6 GPIO with alternate functions: LCD segment 38, LCD common 6; five-volt tolerant |
| 44 | PF7 | bidirectional | Port F7 GPIO with alternate functions: LCD segment 39, LCD common 7; five-volt tolerant |
| 45 | PD4 | bidirectional | Port D4 GPIO with alternate functions: Timer 1 channel 2, LCD segment 18, ADC1 input 10; five-volt tolerant |
| 46 | PD5 | bidirectional | Port D5 GPIO with alternate functions: Timer 1 channel 3, LCD segment 19, ADC1 input 9; five-volt tolerant |
| 47 | PD6 | bidirectional | Port D6 GPIO with alternate functions: Timer 1 break input, LCD segment 20, ADC1 input 8, RTC calibration, internal voltage reference output; five-volt tolerant |
| 48 | PD7 | bidirectional | Port D7 GPIO with alternate functions: Timer 1 inverted channel 1, LCD segment 21, ADC1 input 7, RTC alarm, internal voltage reference output; five-volt tolerant |
| 49 | PG4 | bidirectional | Port G4 GPIO with alternate function: SPI2 slave select; five-volt tolerant |
| 50 | PG5 | bidirectional | Port G5 GPIO with alternate function: SPI2 clock; five-volt tolerant |
| 51 | PG6 | bidirectional | Port G6 GPIO with alternate function: SPI2 MOSI; five-volt tolerant |
| 52 | PG7 | bidirectional | Port G7 GPIO with alternate function: SPI2 MISO; five-volt tolerant |
| 53 | PC0 | bidirectional | Port C0 GPIO open-drain with alternate function: I2C1 SDA line; five-volt tolerant; no protection diode to VDD |
| 54 | PC1 | bidirectional | Port C1 GPIO open-drain with alternate function: I2C1 SCL line; five-volt tolerant; no protection diode to VDD |
| 55 | VDD2 | power_in | I/O power supply 1.8 V to 3.6 V |
| 56 | VSS2 | power_in | I/O ground voltage |
| 57 | PC2 | bidirectional | Port C2 GPIO with alternate functions: USART1 receive, LCD segment 22, ADC1 input 6, internal voltage reference output; five-volt tolerant |
| 58 | PC3 | bidirectional | Port C3 GPIO with alternate functions: USART1 transmit, LCD segment 23, ADC1 input 5; five-volt tolerant |
| 59 | PC4 | bidirectional | Port C4 GPIO with alternate functions: USART1 synchronous clock, I2C1 SMBus alert, configurable clock output, ADC1 input 4; five-volt tolerant |
| 60 | PC5 | bidirectional | Port C5 GPIO with alternate functions: LSE oscillator input, SPI1 slave select, USART1 transmit; five-volt tolerant |
| 61 | PC6 | bidirectional | Port C6 GPIO with alternate functions: LSE oscillator output, SPI1 clock, USART1 receive; five-volt tolerant |
| 62 | PC7 | bidirectional | Port C7 GPIO with alternate function: ADC1 input 3; five-volt tolerant |
| 63 | PE6 | bidirectional | Port E6 GPIO with alternate functions: Programmable voltage detector input, Timer 5 break input; five-volt tolerant |
| 64 | PE7 | bidirectional | Port E7 GPIO with alternate function: Timer 5 external trigger; five-volt tolerant |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-64(10x10) |
| Category | Embedded Processors & Controllers |
| Pins | 64 |
CAD (KiCad official)
- Symbol:
STM8L052R8T6TR - Footprint:
Package_QFP:LQFP-64_10x10mm_P0.5mm - 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files:
stm8l052r8t6tr-etched.step/stm8l052r8t6tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm8l052r8t6tr.step/stm8l052r8t6tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (112 pp, sha256
2292f03a7352bea4, retrieved 2026-09-23, 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).