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NUC505DS13Y

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by Ray

Nuvoton Tech Microcontrollers (MCU/MPU/SOC), LQFP-64(7x7). Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentembedded processors & controllersnuc505ds13y
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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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NUC505DS13Y

Nuvoton Tech · Microcontrollers (MCU/MPU/SOC) · LQFP-64(7x7)

NUC505DS13Y from Nuvoton Tech, in a LQFP-64(7x7). 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 nRESET input External reset input, active LOW, with internal pull-up. Drive low to reset the device to initial state.
2 PD.0/ICE_CLK/I2C0_SCL bidirectional Multi-function pin. MFP0: ICE_CLK serial-wired debugger clock (default in ICE mode). MFP0: PD.0 GPIO. MFP2: I2C0_SCL clock.
3 PD.1/ICE_DAT/I2C0_SDA bidirectional Multi-function pin. MFP0: ICE_DAT serial-wired debugger data (default in ICE mode). MFP0: PD.1 GPIO. MFP2: I2C0_SDA data.
4 PB.13/SPI1_MISO/USBH1_D-/UART2_nRTS/PWM_CH3 bidirectional GPIO PB.13. Alt: SPI1_MISO, USB host-lite 1 D-, UART2 nRTS, PWM channel 3.
5 PB.14/USBH1_D+/I2C1_SCL bidirectional GPIO PB.14. Alt: USB host-lite 1 D+, I2C1_SCL clock.
6 PB.15/USBH1_D-/I2C1_SDA bidirectional GPIO PB.15. Alt: USB host-lite 1 D-, I2C1_SDA data.
7 PC.0/SD_CMD bidirectional GPIO PC.0. Alt: SD/SDH mode command/response line.
8 VDD power_in Power supply for I/O ports, DC 3.3 V.
9 VSS power_in Ground.
10 XT1_IN input External 12 MHz (high-speed) crystal input pin.
11 XT1_OUT output External 12 MHz (high-speed) crystal output pin.
12 VDD12 power_in Digital core power supply, DC 1.2 V.
13 USB_D- bidirectional USB 2.0 HS device differential signal D-.
14 USB_D+ bidirectional USB 2.0 HS device differential signal D+.
15 AVDDUSB power_in Analog power supply for USB PHY, DC 3.3 V.
16 USB_REXT passive USB reference resistor pin; connect a 12.1 kΩ resistor to ground for USB PHY biasing.
17 VBAT power_in Battery backup supply for RTC, DC 3.3 V.
18 RTC_RPWR output Active-high enable output for external power control source (RTC-controlled power switch).
19 RTC_nRWAKE input Active-low system power enable trigger from RTC wake source.
20 PA.8/SPIM_SS/I2S_LRCLK/UART1_TXD bidirectional GPIO PA.8. Alt: SPIM slave-select, I2S LRCLK, UART1 TXD.
21 PA.9/SPIM_CLK/I2S_BCLK/UART1_RXD/SYSCFG[0] bidirectional GPIO PA.9. Alt: SPIM serial clock, I2S bit clock, UART1 RXD. Also sampled at reset as SYSCFG[0] system configuration bit.
22 PA.10/SPIM_MOSI/I2C1_SCL/SD_CLK/SYSCFG[1] bidirectional GPIO PA.10. Alt: SPIM MOSI (also QSPI D0), I2C1_SCL, SD_CLK. Also sampled at reset as SYSCFG[1].
23 PA.11/SPIM_MISO/I2C1_SDA/SD_CMD bidirectional GPIO PA.11. Alt: SPIM MISO (also QSPI D1), I2C1_SDA, SD command line.
24 PA.12/SPIM_D2/TM0_CNT_OUT bidirectional GPIO PA.12. Alt: SPIM/QSPI data 2, Timer0 event counter input / toggle output.
25 PA.13/SPIM_D3/TM0_EXT/SD_nCD bidirectional GPIO PA.13. Alt: SPIM/QSPI data 3, Timer0 external capture input, SD card-detect.
26 PA.14/I2C0_SCL/SD_DAT0 bidirectional GPIO PA.14. Alt: I2C0_SCL, SD data line 0.
27 PA.15/I2C0_SDA/SD_DAT1 bidirectional GPIO PA.15. Alt: I2C0_SDA, SD data line 1.
28 VDD power_in Power supply for I/O ports, DC 3.3 V.
29 PB.0/I2C0_SCL/UART0_TXD/SD_DAT2 bidirectional GPIO PB.0. Alt: I2C0_SCL, UART0 TXD, SD data line 2.
30 PB.1/I2C0_SDA/UART0_RXD/SD_DAT3 bidirectional GPIO PB.1. Alt: I2C0_SDA, UART0 RXD, SD data line 3.
31 PB.2/SPI0_SS/SD_CMD bidirectional GPIO PB.2. Alt: SPI0 slave-select, SD command line.
32 PB.3/SPI0_CLK/SD_CLK/SYSCFG[2] bidirectional GPIO PB.3. Alt: SPI0 serial clock, SD clock. Also sampled at reset as SYSCFG[2].
33 PB.4/SPI0_MOSI/SYSCFG[3] bidirectional GPIO PB.4. Alt: SPI0 MOSI. Also sampled at reset as SYSCFG[3].
34 PB.5/SPI0_MISO/SD_nCD bidirectional GPIO PB.5. Alt: SPI0 MISO, SD card-detect.
35 PB.6/UART1_TXD/SD_DAT0 bidirectional GPIO PB.6. Alt: UART1 TXD, SD data line 0.
36 PB.7/UART1_RXD/SD_DAT1 bidirectional GPIO PB.7. Alt: UART1 RXD, SD data line 1.
37 USB_VBUS33 input USB VBUS-detect input (3.3 V level); indicates presence of USB bus power.
38 PB.8/USBH_PWEN/TM1_CNT_OUT/UART1_nCTS/SD_DAT2 bidirectional GPIO PB.8. Alt: USB host external power enable, Timer1 event counter I/O, UART1 nCTS, SD data line 2.
39 PB.9/USBH_OVD/TM1_EXT/UART1_nRTS/SD_DAT3 bidirectional GPIO PB.9. Alt: USB host bus over-voltage detect, Timer1 external capture, UART1 nRTS, SD data line 3.
40 VSS power_in Ground.
41 AVDDHP power_in Analog power supply for CODEC headphone driver, DC 3.3 V.
42 LHPOUT output Headphone left-channel analog output from internal 24-bit CODEC.
43 RHPOUT output Headphone right-channel analog output from internal 24-bit CODEC.
44 AVSSHP power_in Analog ground for CODEC headphone driver.
45 VMID passive Headphone reference (mid-rail) power. Requires external decoupling capacitor to ground.
46 AVDDCODEC power_in Analog power supply for internal CODEC, DC 3.3 V.
47 AVDDADC power_in Analog power supply for the SAR ADC, DC 3.3 V.
48 AVSSADC power_in Analog ground for the SAR ADC.
49 PA.0/ADC_CH0 bidirectional GPIO PA.0. Alt: 12-bit ADC channel 0 analog input.
50 PA.1/ADC_CH1 bidirectional GPIO PA.1. Alt: 12-bit ADC channel 1 analog input.
51 PA.2/ADC_CH2/I2S_MCLK bidirectional GPIO PA.2. Alt: 12-bit ADC channel 2 analog input, I2S master clock output.
52 PA.3/ADC_CH3/I2S_DI bidirectional GPIO PA.3. Alt: 12-bit ADC channel 3 analog input, I2S data input.
53 PA.4/ADC_CH4/I2S_DO bidirectional GPIO PA.4. Alt: 12-bit ADC channel 4 analog input, I2S data output.
54 PA.5/ADC_CH5 bidirectional GPIO PA.5. Alt: 12-bit ADC channel 5 analog input.
55 PA.6/ADC_CH6 bidirectional GPIO PA.6. Alt: 12-bit ADC channel 6 analog input.
56 PA.7/ADC_CH7 bidirectional GPIO PA.7. Alt: 12-bit ADC channel 7 analog input.
57 VDD12 power_in Digital core power supply, DC 1.2 V.
58 PB.10/SPI1_SS/I2C1_SCL/UART2_TXD/PWM_CH0 bidirectional GPIO PB.10. Alt: SPI1 slave-select, I2C1_SCL, UART2 TXD, PWM channel 0.
59 PB.11/SPI1_CLK/I2C1_SDA/UART2_RXD/PWM_CH1 bidirectional GPIO PB.11. Alt: SPI1 serial clock, I2C1_SDA, UART2 RXD, PWM channel 1.
60 PB.12/SPI1_MOSI/USBH1_D+/UART2_nCTS/PWM_CH2 bidirectional GPIO PB.12. Alt: SPI1 MOSI, USB host-lite 1 D+, UART2 nCTS, PWM channel 2.
61 VDD power_in Power supply for I/O ports, DC 3.3 V.
62 VDD power_in Main 3.3 V power supply.
63 LDO_CAP passive Internal 1.2 V LDO output pin. Requires an external decoupling capacitor to VSS.
64 VSS power_in Ground.

Key specifications

Parameter Value
Manufacturer Nuvoton Tech
Package LQFP-64(7x7)
Category Embedded Processors & Controllers
Pins 64

Ordering variants

Same part, different packaging or reel option.

  • NUC505DS13Y
  • NUC505DS13YDSA
  • NUC505DS13YDLA
  • NUC505DS13YDL13Y
  • NUC505DS13YYLA
  • NUC505DS13YYLA2Y
  • NUC505DS13YYO13Y

CAD (KiCad official)

  • Symbol: NUC505DS13Y
  • Footprint: Package_QFP:LQFP-64_7x7mm_P0.4mm
  • 3D model: LQFP-64(7x7) (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Nuvoton Tech datasheet (None pp, sha256 27cb8319f351ab4c, retrieved 2026-08-17, tier: lcsc)
  • 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).

Datasheet PDF