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Contents

README

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AT32F423CBT7

ARTERY(雅特力) · Microcontrollers (MCU/MPU/SOC) · LQFP48

AT32F423CBT7 from ARTERY(雅特力), in a LQFP48. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VDD power_in Digital power supply, 2.4 V to 3.6 V (VDD is the supply for GPIO, ERTC, LEXT, BPR and LDO; VDDA must be at the same potential as VDD).
2 PC13 bidirectional 5 V-tolerant GPIO (FT) supplied through a power switch that can source only 3 mA, so it must not be used as a current source such as an LED driver; also ERTC_OUT, TAMP1 and WKUP2, with usage limits given in the errata.
3 PC14 bidirectional Standard-level GPIO (TC, not 5 V-tolerant) supplied through the same 3 mA-limited power switch as PC13, with LEXT_IN as its additional function.
4 PC15 bidirectional Standard-level GPIO (TC, not 5 V-tolerant) supplied through the same 3 mA-limited power switch as PC13, with LEXT_OUT as its additional function.
5 PF0 bidirectional Standard-level GPIO (TC) whose additional function is the HEXT crystal input HEXT_IN; alternate functions include TMR1_CH1 and I2C1_SDA.
6 PF1 bidirectional Standard-level GPIO (TC) whose additional function is the HEXT crystal output HEXT_OUT; alternate functions include TMR1_CH2C, I2C1_SCL, SPI2_CS and I2S2_WS.
7 NRST bidirectional Active-low device reset input and internal reset output with a built-in weak pull-up (RPU typ. 40 kΩ), with VIL max 0.8 V and VIH min 2 V.
8 VSSA power_in Analog ground for the ADC and DAC, which must be at the same potential as VSS.
9 VDDA power_in Analog supply for the ADC and DAC, which must be equal to VDD (2.4 V to 3.6 V).
10 PA0 bidirectional 5 V-tolerant GPIO with analog function (FTa): when in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN0 (fast channel), WKUP1 and TAMP2, plus TMR2_CH1 and USART2_RX/CTS.
11 PA1 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN1 (fast channel), TMR2_CH2, I2C2_SDA and SPI3_CS.
12 PA2 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN2, TMR2_CH3, USART2_TX and CAN2_RX.
13 PA3 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN3, TMR2_CH4, I2S2_MCK, USART2_RX and CAN2_TX.
14 PA4 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN4 and DAC1_OUT, with SPI1_CS, USART2_CK and OTGFS1_OE as alternate functions.
15 PA5 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN5 and DAC2_OUT, with SPI1_SCK, I2S1_CK and USART3_CK as alternate functions.
16 PA6 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN6, with TMR1_BRK, TMR3_CH1, SPI1_MISO and USART3_CTS as alternate functions.
17 PA7 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN7, with TMR1_CH1C, TMR3_CH2, SPI1_MOSI and USART3_TX as alternate functions.
18 PB0 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN8, with TMR1_CH2C, TMR3_CH3, SPI1_MISO and USART2_RX as alternate functions.
19 PB1 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN9, with TMR1_CH3C, TMR3_CH4, SPI1_MOSI and USART3_RTS_DE as alternate functions.
20 PB2 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN20, with TMR2_CH4, TMR3_EXT, I2C3_SMBA and SPI3_MOSI as alternate functions.
21 PB10 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN21, with TMR2_CH3, I2C2_SCL, SPI2_SCK, USART3_TX and XMC_NOE as alternate functions.
22 PB11 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN22, with TMR2_CH4, I2C2_SDA, USART3_RX and TMR13_BRK as alternate functions.
23 PF8 bidirectional 5 V-tolerant GPIO (FT) with TMR2_CH2, I2C2_SDA and USART7_TX as alternate functions.
24 VDD power_in Digital power supply, 2.4 V to 3.6 V.
25 PB12 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN23, with TMR1_BRK, SPI2_CS, USART3_CK and CAN2_RX as alternate functions.
26 PB13 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN24, with CLKOUT, TMR1_CH1C, SPI2_SCK, USART3_CTS and CAN2_TX as alternate functions.
27 PB14 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN25, with TMR1_CH2C, SPI2_MISO, USART3_RTS_DE and XMC_D0 as alternate functions.
28 PB15 bidirectional 5 V-tolerant GPIO with analog function (FTa): in analog mode the input must stay below VDD + 0.3 V; also ADC1_IN26 and WKUP7, with ERTC_REFIN, TMR1_CH3C, SPI2_MOSI and TMR12_CH2 as alternate functions.
29 PA8 bidirectional 5 V-tolerant GPIO (FT) with CLKOUT, TMR1_CH1, USART1_CK, USART2_TX and OTGFS1_SOF as alternate functions.
30 PA9 bidirectional 5 V-tolerant GPIO (FT) with CLKOUT, TMR1_CH2, USART1_TX, I2C1_SCL and OTGFS1_VBUS as alternate functions.
31 PA10 bidirectional 5 V-tolerant GPIO (FT) with ERTC_REFIN, TMR1_CH3, USART1_RX, I2C1_SDA and OTGFS1_ID as alternate functions.
32 PA11 bidirectional Standard-level GPIO (TC, not 5 V-tolerant) with TMR1_CH4, USART1_CTS, CAN1_RX and OTGFS1_D- as its functions.
33 PA12 bidirectional Standard-level GPIO (TC, not 5 V-tolerant) with TMR1_EXT, USART1_RTS_DE, CAN1_TX and OTGFS1_D+ as its functions.
34 PA13 bidirectional 5 V-tolerant GPIO (FT) that is shared with the SWDIO/JTMS debug function; also IR_OUT, I2C1_SDA and OTGFS1_OE.
35 PF6 bidirectional 5 V-tolerant GPIO (FT) with TMR2_CH1, I2C2_SCL and USART7_RX as alternate functions.
36 VDD power_in Digital power supply, 2.4 V to 3.6 V.
37 PA14 bidirectional 5 V-tolerant GPIO (FT) that is shared with the SWCLK/JTCK debug function; also I2C1_SMBA, SPI3_MOSI, I2S3_SD and USART2_TX.
38 PA15 bidirectional 5 V-tolerant GPIO (FT) that is shared with the JTDI debug function; also TMR2_CH1, TMR2_EXT, SPI1_CS, USART1_TX and XMC_NE2.
39 PB3 bidirectional 5 V-tolerant GPIO (FT) that is shared with the JTDO/SWO debug function; also TMR2_CH2, SPI1_SCK, USART1_RX and USART5_TX.
40 PB4 bidirectional 5 V-tolerant GPIO (FT) that is shared with the NJTRST debug function; also TMR3_CH1, TMR11_BRK, SPI1_MISO and USART1_CTS.
41 PB5 bidirectional 5 V-tolerant GPIO (FT) with TMR3_CH2, TMR10_BRK, I2C3_SMBA, SPI1_MOSI, USART1_CK and CAN2_RX as alternate functions, and WKUP6 as additional function.
42 PB6 bidirectional 5 V-tolerant GPIO (FT) with TMR4_CH1, TMR10_CH1C, I2C1_SCL, I2S1_MCK, USART1_TX and CAN2_TX as alternate functions.
43 PB7 bidirectional 5 V-tolerant GPIO (FT) with TMR4_CH2, TMR11_CH1C, I2C1_SDA, SPI3_SCK, USART1_RX and XMC_NADV as alternate functions.
44 BOOT0 input Dedicated boot mode selection pin 0 with a built-in weak pull-down that cannot be disabled.
45 PB8 bidirectional 5 V-tolerant GPIO (FT) with TMR2_CH1, TMR2_EXT, TMR4_CH3, TMR10_CH1, I2C1_SCL, USART1_TX and CAN1_RX as alternate functions.
46 PB9 bidirectional 5 V-tolerant GPIO (FT) with IR_OUT, TMR2_CH2, TMR4_CH4, TMR11_CH1, I2C1_SDA, SPI2_CS, USART5_TX and CAN1_TX as alternate functions.
47 VSS power_in Digital ground.
48 VDD power_in Digital power supply, 2.4 V to 3.6 V.

Key specifications

Parameter Value
Manufacturer ARTERY(雅特力)
Package LQFP48
Category Embedded Processors & Controllers
Pins 48

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
External main supply voltage VDDx-VSS VDDx-VSS -0.3 4 V 35
Input voltage on FTa pin, input floating / pull-up / pull-down mode VIN -0.3 6 V FTa pin set to input floating, input pull-up or input pull-down mode; min printed as VSS-0.3 35
Input voltage on TC pin VIN -0.3 4 V min printed as VSS-0.3 35
Voltage difference between different VDD supply pins /ΔVDDx/ 50 mV 35
Voltage difference between different VSS ground pins /VSSx-VSS/ 50 mV 35
Total current through VDD supply line (inflow) IVDD 150 mA 35
Total current through VSS ground line (outflow) IVSS 150 mA 35
Output sink current on any GPIO and control pin IIO 25 mA 35
Output source current on any GPIO and control pin IIO -25 mA 35
Storage temperature range TSTG -60 150 °C 35
Maximum junction temperature TJ 125 °C 35
Output current limit on PC13, PC14, PC15 (supplied via power switch) 3 mA when PC13, PC14, PC15 are used as output pins 33
OTGFS transceiver startup time tSTARTUP 1 μs 65
OTGFS operating voltage VDD 3 3.6 V 65
Differential input sensitivity (OTGFS_D+/D-) VDI 0.2 65
Differential common-mode range VCM 0.8 2.5 V includes VDI range 65
Single-ended receiver threshold VSE 1.3 2 65
Static output low level VOL 0.3 V 1.24 kΩ RL connected to 3.6 V 65
Static output high level VOH 2.8 3.6 V 15 kΩ RL connected to VSS 65
OTGFS_D+ internal pull-up resistance, idle state RPU 0.97 1.24 1.58 kΩ idle state, VIN = VSS 65
OTGFS_D+ internal pull-up resistance, receive state RPU 1.66 2.26 3.09 kΩ receive state, VIN = VSS 65
OTGFS_D+/D- internal pull-down resistance RPD 15 19 25 kΩ VIN = VDD 65
OTGFS rise time tr 4 20 ns CL ≤ 50 pF 65
OTGFS fall time tf 4 20 ns CL ≤ 50 pF 65
OTGFS rise/fall time matching trfm 90 110 % 65
OTGFS output signal crossover voltage VCRS 1.3 2 V 65
ADC supply voltage VDDA 2.4 3.6 V 66
ADC positive reference voltage VREF+ 2 V 66
Current into VDDA input pin IDDA 1000 1250 μA fADC = 80 MHz 66
Current into VREF+ input pin IVREF+ 470 510 μA fADC = 80 MHz 66
ADC clock frequency fADC 0.6 80 MHz VREF+ ≥ 3.0 V 66
ADC clock frequency fADC 0.6 30 MHz VREF+ < 3.0 V 66
ADC sampling rate, 12-bit resolution, fast channel fS 0.04 5.33 MSPS resolution 12-bit 66
ADC sampling rate, 12-bit resolution, slow channel fS 4.21 MSPS resolution 12-bit 66
ADC sampling rate, 10-bit resolution, fast channel fS 0.047 6.15 MSPS resolution 10-bit 66
ADC sampling rate, 10-bit resolution, slow channel fS 4.71 MSPS resolution 10-bit 66
ADC sampling rate, 8-bit resolution, fast channel fS 0.055 7.27 MSPS resolution 8-bit 66
ADC sampling rate, 8-bit resolution, slow channel fS 5.33 MSPS resolution 8-bit 66
ADC sampling rate, 6-bit resolution, fast channel fS 0.067 8.88 MSPS resolution 6-bit 66
ADC sampling rate, 6-bit resolution, slow channel fS 6.15 MSPS resolution 6-bit 66
ADC external trigger frequency fTRIG 4.44 MHz fADC = 80 MHz 66
ADC external trigger frequency fTRIG 18 1/fADC 66
ADC conversion voltage range VAIN 0 V VREF- internally connected to ground 66
ADC internal sample-and-hold capacitance CADC 10 pF 66
ADC preemption trigger conversion latency tlat 37.5 ns fADC = 80 MHz 66
ADC preemption trigger conversion latency tlat 3 1/fADC 66
ADC regular trigger conversion latency tlatr 25 ns fADC = 80 MHz 66
ADC regular trigger conversion latency tlatr 2 1/fADC 66
ADC sampling time tS 0.031 8.006 μs fADC = 80 MHz 66
ADC sampling time tS 2.5 640.5 1/fADC 66
ADC total conversion time (including sampling) tCONV 0.188 8.163 μs fADC = 80 MHz, 12-bit resolution 66
ADC total conversion time (including sampling) tCONV 15 653 1/fADC 12-bit resolution; sampling tS + successive approximation 12.5 66

CAD (KiCad official)

  • Symbol: AT32F423CBT7
  • Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
  • 3D model: LQFP48 (KiCad packages3D, STEP)
  • 3D model files: at32f423cbt7-etched.step / at32f423cbt7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at32f423cbt7.step / at32f423cbt7.glb are the bare package body.

Provenance

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

  • Datasheet: ARTERY(雅特力) datasheet (89 pp, sha256 6d4a423ff66fe757, retrieved 2026-10-20, 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: 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