# ATmega328P Minimal Board

## Description

ATmega328P microcontroller schematic with recommended power decoupling, reset circuit, 16 MHz crystal clock, and ISP/UART breakout support\.

## Project Details

- **Owner:** pcbcloner
- **Created:** 5/30/2026
- **Last Updated:** 6/1/2026
- **Visibility:** Public

## Key Components

### D1 — [ESD601DPYRQ1](https://flux.ai/adrian95/esd601dpyrq1~jxk.md)

- Role: Protection
- Manufacturer Part Number: ESD601DPYRQ1
- Part Type: Diode
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Low\-capacitance RF ESD diode from LTE antenna feed to ground\.
- Manufacturer Name: Texas Instruments
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/esd601\-q1\.pdf?ts=1731602930370

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### D2 — [SS34](https://flux.ai/collinsemasi/ss34~qf.md)

- Datasheet URL: https://mm\.digikey\.com/Volume0/opasdata/d220001/medias/docus/5335/SMASS340000S34\.pdf
- Part Type: Diode
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role: Protection
- Manufacturer Name: NextGen Components Inc
- Manufacturer Part Number: SS34
- Role Details: 3A Schottky input protection between USB VBUS and protected 5V rail\.

**Pins:**
- A [pin 2]
- C [pin 1]

### F1 — [0805L110WR](https://flux.ai/adrian95/0805l110wr~h3i.md)

- Role Details: 1\.1A hold PTC on USB\-C VBUS; note peak cellular bursts may require higher hold\-current production alternative\.
- Role: Protection
- Manufacturer Name: Littelfuse Inc\.
- Manufacturer Part Number: 0805L110WR
- Datasheet URL: https://www\.littelfuse\.com/media?resourcetype=datasheets&itemid=3b1fa5dc\-24aa\-4363\-b543\-edb057c2fffa&filename=littelfuse\_ptc\_0805l\_datasheet\.pdf
- Part Type: Fuse
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### J1 — [TSW\-103\-07\-G\-D](https://flux.ai/adrian95/tsw-103-07-g-d~6gs.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Connector
- Role Details: AVR ISP header carrying MISO, VCC, SCK, MOSI, RESET, and GND\.
- Role: Connector
- Manufacturer Part Number: TSW\-103\-07\-G\-D
- Datasheet URL: https://suddendocs\.samtec\.com/prints/tsw\-xxx\-xx\-x\-x\-xx\-xxx\-footprint\.pdf
- Manufacturer Name: Samtec Inc\.

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]
- 4 [pin 4]
- 5 [pin 5]
- 6 [pin 6]

### J2 — [TSW\-106\-07\-G\-S](https://flux.ai/adrian95/tsw-106-07-g-s~giw.md)

- Connector Type: Headers and Wire Housings
- Role Details: 6\-pin breakout for VCC, GND, RXD, TXD, RESET, and one spare GPIO\.
- Role: Connector
- Manufacturer Part Number: TSW\-106\-07\-G\-S
- Manufacturer Name: Samtec
- Connector Gender: Male
- Connector Rows: 1
- Datasheet URL: https://suddendocs\.samtec\.com/catalog\_english/tsw\_th\.pdf
- License: https://creativecommons\.org/licenses/by/4\.0/
- Connector Pitch: 2\.54mm
- Part Type: Connector
- Connector Positions: 6

**Pins:**
- 01 [pin 01]
- 02 [pin 02]
- 03 [pin 03]
- 04 [pin 04]
- 05 [pin 05]
- 06 [pin 06]

### J3 — [SMA\-J\-P\-H\-ST\-EM1](https://flux.ai/jecstronic/sma-j-p-h-st-em1~0a1.md)

- Part Type: Connector
- Role: Antenna Connector
- Datasheet URL: http://suddendocs\.samtec\.com/catalog\_english/sma\.pdf
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Board\-edge SMA connector for BG95 LTE main antenna, route as 50 ohm RF trace\.
- Manufacturer Name: Samtec Inc\.
- Manufacturer Part Number: SMA\-J\-P\-H\-ST\-EM1

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]

### J4 — [7111S2015X02LF](https://flux.ai/cherepanyadima/7111s2015x02lf~ky.md)

- Datasheet URL: https://www\.amphenol\-cs\.com/media/wysiwyg/files/documentation/datasheet/inputoutput/io\_smartcard\_ss06ss10series\.pdf
- Role Details: Nano\-SIM holder for BG95 1\.8V USIM interface\.
- Manufacturer Name: Amphenol ICC 
- Mount: Surface Mount
- Part Type: Connector
- Role: SIM Connector
- Manufacturer Part Number: 7111S2015X02LF
- Compliance: Lead Free

**Pins:**
- C1 [pin 1]
- C2 [pin 2]
- C3 [pin 3]
- C5 [pin 5]
- C6 [pin 6]
- C7 [pin 7]

### J5 — [USB4105\-GF\-A](https://flux.ai/adrian95/usb4105-gf-a~im9.md)

- Part Type: USB C
- Role Details: USB\-C sink power input; VBUS feeds protected 5V rail, CC pins use 5\.1k pull\-downs\.
- License: https://creativecommons\.org/licenses/by/4\.0/
- Symbol Style: parametric\-v1
- Role: Power Connector
- Manufacturer Name: GCT
- Manufacturer Name: GCT
- Datasheet URL: https://gct\.co/files/specs/usb4105\-spec\.pdf
- Manufacturer Part Number: USB4105\-GF\-A

**Pins:**
- CC1 [pin A5]
- CC2 [pin B5]
- DN1 [pin A7]
- DN2 [pin B7]
- DP1 [pin A6]
- DP2 [pin B6]
- GND [pin A1\_B12]
- GND\_\_1 [pin B1\_A12]
- SBU1 [pin A8]
- SBU2 [pin B8]
- SHELL\_GND [pin SH1]
- SHELL\_GND\_\_1 [pin SH2]
- SHELL\_GND\_\_2 [pin SH3]
- SHELL\_GND\_\_3 [pin SH4]
- VBUS [pin A4\_B9]
- VBUS\_\_1 [pin B4\_A9]

### J6 — [XY301V\-A\-5\.0\-2P](https://flux.ai/jharwinbarrozo/xy301v-a-50-2p~u6.md)

- Part Type: Connector
- Manufacturer Name: Ningbo Xinlaiya Elec\.
- Datasheet URL: https://www\.lcsc\.com/datasheet/C557651\.pdf?spm=wm\.sxq\.inf\.ggs&lcsc\_vid=E1BYV1AHFgUMXgFVQ1AMU1JVQFReXgIATwJfA10DFVkxVlNRT1dXXlVTQ1hbUjsOAxUeFF5JWBYZEEoBGA4JCwFIFA4DSA%3D%3D
- Manufacturer Part Number: XY301V\-A\-5\.0\-2P
- Role Details: Primary 5 V field supply input sized for LTE\-M peak current budget; recommended 5 V / 3 A adapter\.
- Role: Power Input

**Pins:**
- PIN1 [pin 1]
- PIN2 [pin 2]

### J7 — [TSW\-106\-07\-G\-S](https://flux.ai/adrian95/tsw-106-07-g-s~giw.md)

- Connector Type: Headers and Wire Housings
- Manufacturer Part Number: TSW\-106\-07\-G\-S
- Manufacturer Name: Samtec
- Connector Gender: Male
- Connector Rows: 1
- Datasheet URL: https://suddendocs\.samtec\.com/catalog\_english/tsw\_th\.pdf
- License: https://creativecommons\.org/licenses/by/4\.0/
- Connector Pitch: 2\.54mm
- Part Type: Connector
- Connector Positions: 6

**Pins:**
- 01 [pin 01]
- 02 [pin 02]
- 03 [pin 03]
- 04 [pin 04]
- 05 [pin 05]
- 06 [pin 06]

### J8 — [TSW\-106\-07\-G\-S](https://flux.ai/adrian95/tsw-106-07-g-s~giw.md)

- Connector Type: Headers and Wire Housings
- Manufacturer Part Number: TSW\-106\-07\-G\-S
- Manufacturer Name: Samtec
- Connector Gender: Male
- Connector Rows: 1
- Datasheet URL: https://suddendocs\.samtec\.com/catalog\_english/tsw\_th\.pdf
- License: https://creativecommons\.org/licenses/by/4\.0/
- Connector Pitch: 2\.54mm
- Part Type: Connector
- Connector Positions: 6

**Pins:**
- 01 [pin 01]
- 02 [pin 02]
- 03 [pin 03]
- 04 [pin 04]
- 05 [pin 05]
- 06 [pin 06]

### J9 — [HR911105A](https://flux.ai/jecstronic/hr911105a~ae9.md)

- Role: RJ45 MagJack
- Manufacturer Part Number: HR911105A
- Part Type: Connector
- Manufacturer Name: HANRUN
- Role Details: 10/100BASE\-T RJ45 connector with integrated magnetics for W5500 Ethernet PHY\.
- Datasheet URL: https://datasheet\.lcsc\.com/lcsc/1811141815\_HANRUN\-Zhongshan\-HanRun\-Elec\-HR911105A\_C12074\.pdf
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- \~ [pin 12]
- \~ [pin 3]
- \~ [pin 10]
- \~ [pin 2]
- \~ [pin 5]
- \~ [pin 8]
- \~ [pin 9]
- \~ [pin 1]
- \~ [pin 6]
- \~ [pin 4]
- \~ [pin 11]
- SHIELD [pin 15]
- SHIELD [pin 16]

### S1 — [PTS636 SM43J SMTR LFS](https://flux.ai/jharwinbarrozo/pts636-sm43j-smtr-lfs~6r0.md)

- Role: Switching
- Part Type: Switch
- Manufacturer Part Number: PTS636 SM43J SMTR LFS
- Datasheet URL: https://www\.ckswitches\.com/media/2779/pts636\.pdf
- Manufacturer Name: C&K
- Role Details: Momentary switch pulls RESET low for manual reset\.

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### U1 — [ATMEGA328P\-MU](https://flux.ai/vasy_skral/atmega328p-mu~wrm.md)

- Part Type: Microcontroller
- Role Details: Main 8\-bit AVR MCU with 16 MHz external crystal, ISP programming, and UART breakout\.
- License: https://creativecommons\.org/licenses/by/4\.0/
- Datasheet URL: https://ww1\.microchip\.com/downloads/en/DeviceDoc/ATmega48A\-PA\-88A\-PA\-168A\-PA\-328\-P\-DS\-DS40002061B\.pdf
- Symbol Style: Parametric
- Manufacturer Part Number: ATMEGA328P\-MU
- Role: Microcontroller
- Manufacturer Name: Microchip

**Pins:**
- \~RESET\~/PC6 [pin 29]
- ADC6 [pin 19]
- ADC7 [pin 22]
- AREF [pin 20]
- AVCC [pin 18]
- GND [pin 33]
- GND [pin 3]
- GND [pin 21]
- GND [pin 5]
- PB0 [pin 12]
- PB1 [pin 13]
- PB2 [pin 14]
- PB3 [pin 15]
- PB4 [pin 16]
- PB5 [pin 17]
- PC0 [pin 23]
- PC1 [pin 24]
- PC2 [pin 25]
- PC3 [pin 26]
- PC4 [pin 27]
- PC5 [pin 28]
- PD0 [pin 30]
- PD1 [pin 31]
- PD2 [pin 32]
- PD3 [pin 1]
- PD4 [pin 2]
- PD5 [pin 9]
- PD6 [pin 10]
- PD7 [pin 11]
- VCC [pin 6]
- VCC [pin 4]
- XTAL1/PB6 [pin 7]
- XTAL2/PB7 [pin 8]

### U2 — [BG95M3LA\-64\-SGNS](https://flux.ai/lcsc/bg95m3la-64-sgns~1znm.md)

- Role Details: Quectel BG95\-M3 LTE\-M/NB\-IoT modem; VBAT 3\.3\-4\.3V typ 3\.8V, UART to ATmega through level shifter, RF to SMA\.
- Datasheet URL: https://mm\.digikey\.com/Volume0/opasdata/d220001/medias/docus/7133/Quectel\_BG95\_Series\_LPWA\_Specification\_V2\.2\.pdf
- Package or Case Code: LPWA\-MODULE\-SMD\_L23\.6\-W19\.9\-P1\.10\-BG95\-M1
- Manufacturer Part Number: BG95M3LA\-64\-SGNS
- JLCPCB Part Class: Extended Part
- Part Type: 2G/3G/4G/5G Modules
- LCSC Part Number: C2960993
- Manufacturer Name: Quectel\(移远\)
- Symbol Style: parametric\-v1
- Role: Cellular Modem

**Pins:**
- ADC0 [pin 24]
- ADC1 [pin 2]
- ANT\_GNSS [pin 49]
- ANT\_MAIN [pin 60]
- ANT\_WIFI [pin 56]
- AP\_READY [pin 19]
- DBG\_RXD [pin 22]
- DBG\_TXD [pin 23]
- GND [pin 73]
- GND [pin 68]
- GND [pin 71]
- GND [pin 101]
- GND [pin 67]
- GND [pin 50]
- GND [pin 100]
- GND [pin 91]
- GND [pin 79]
- GND [pin 70]
- GND [pin 102]
- GND [pin 58]
- GND [pin 80]
- GND [pin 82]
- GND [pin 48]
- GND [pin 69]
- GND [pin 31]
- GND [pin 62]
- GND [pin 74]
- GND [pin 3]
- GND [pin 89]
- GND [pin 90]
- GND [pin 54]
- GND [pin 55]
- GND [pin 81]
- GND [pin 61]
- GND [pin 59]
- GND [pin 72]
- GNSS\_LAN\_EN [pin 51]
- GNSS\_RXD [pin 28]
- GNSS\_TXD [pin 27]
- GPIO1 [pin 25]
- GPIO2 [pin 26]
- GPIO3 [pin 64]
- GPIO4 [pin 65]
- GPIO5 [pin 66]
- GPIO6 [pin 85]
- GPIO7 [pin 86]
- GPIO8 [pin 87]
- GPIO9 [pin 88]
- GRFC1 [pin 83]
- GRFC2 [pin 84]
- I2C\_SCL [pin 40]
- I2C\_SDA [pin 41]
- MAIN\_CTS [pin 36]
- MAIN\_DCD [pin 38]
- MAIN\_DTR [pin 30]
- MAIN\_RI [pin 39]
- MAIN\_RTS [pin 37]
- MAIN\_RXD [pin 34]
- MAIN\_TXD [pin 35]
- NET\_STATUS [pin 21]
- PCM\_CLK [pin 4]
- PCM\_DIN [pin 6]
- PCM\_DOUT [pin 7]
- PCM\_SYNC [pin 5]
- PON\_TRIG [pin 96]
- PSM\_IND [pin 1]
- PWRKEY [pin 15]
- RESERVED [pin 63]
- RESERVED [pin 13]
- RESERVED [pin 11]
- RESERVED [pin 78]
- RESERVED [pin 98]
- RESERVED [pin 92]
- RESERVED [pin 93]
- RESERVED [pin 14]
- RESERVED [pin 12]
- RESERVED [pin 97]
- RESERVED [pin 16]
- RESERVED [pin 77]
- RESERVED [pin 76]
- RESERVED [pin 57]
- RESERVED [pin 94]
- RESERVED [pin 99]
- RESERVED [pin 95]
- RESET\_N [pin 17]
- STATUS [pin 20]
- USB\_BOOT [pin 75]
- USB\_DM [pin 10]
- USB\_DP [pin 9]
- USB\_VBUS [pin 8]
- USIM\_CLK [pin 46]
- USIM\_DATA [pin 45]
- USIM\_DET [pin 42]
- USIM\_GND [pin 47]
- USIM\_RST [pin 44]
- USIM\_VDD [pin 43]
- VBAT\_BB [pin 33]
- VBAT\_BB [pin 32]
- VBAT\_RF [pin 52]
- VBAT\_RF [pin 53]
- VDD\_EXT [pin 29]
- W\_DISABLE [pin 18]

### U3 — [LMR33630ADDA](https://flux.ai/cherepanyadima/lmr33630adda.md)

- Role Details: 5V to 3\.8V buck for BG95 VBAT rail; sized for cellular transmit burst current\.
- Role: Voltage Regulator
- Package or Case Code: TO
- Manufacturer Name: Texas Instruments
- Datasheet URL: http://www\.ti\.com/lit/ds/symlink/lmr33630\.pdf
- Part Type: Integrated Circuits
- Manufacturer Part Number: LMR33630ADDA

**Pins:**
- BOOT [pin 7]
- EN [pin 3]
- EP [pin 9]
- FB [pin 5]
- PG [pin 4]
- PGND [pin 1]
- SW [pin 8]
- VCC [pin 6]
- VIN [pin 2]

### U4 — [TXB0104D](https://flux.ai/kicad-part-library/txb0104d~t6j.md)

- Role Details: Four\-channel translator: A side at BG95 VDD\_EXT 1\.8V, B side at ATmega VCC 5V for UART/control\.
- Role: Level Shifter
- Manufacturer Part Number: TXB0104D
- Package or Case Code: SOIC\-14\_3\.9x8\.7mm\_P1\.27mm
- Manufacturer Name: Texas Instruments Inc\.
- Datasheet URL: http://www\.ti\.com/lit/ds/symlink/txb0104\.pdf

**Pins:**
- A1 [pin 2]
- A2 [pin 3]
- A3 [pin 4]
- A4 [pin 5]
- B1 [pin 13]
- B2 [pin 12]
- B3 [pin 11]
- B4 [pin 10]
- GND [pin 7]
- NC [pin 9]
- NC [pin 6]
- OE [pin 8]
- VCCA [pin 1]
- VCCB [pin 14]

### U5 — [MCP2515\-I\-ST](https://flux.ai/jecstronic/mcp2515-i-st~b5u.md)

- Manufacturer Name: Microchip
- Part Type: Integrated Circuit
- Datasheet URL: https://ww1\.microchip\.com/downloads/en/DeviceDoc/MCP2515\-Stand\-Alone\-CAN\-Controller\-with\-SPI\-20001801J\.pdf
- Role Details: SPI CAN controller connected to ATmega SPI; supports CAN 2\.0B up to 1 Mb/s\.
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Part Number: MCP2515\-I/ST
- Role: CAN Controller

**Pins:**
- \~CS [pin 18]
- \~INT [pin 13]
- \~RESET [pin 19]
- \~RX0BF [pin 12]
- \~RX1BF [pin 11]
- \~TX0RTS [pin 4]
- \~TX1RTS [pin 5]
- \~TX2RTS [pin 7]
- CLKOUT/SOF [pin 3]
- NC [pin 6]
- NC [pin 15]
- OSC1 [pin 9]
- OSC2 [pin 8]
- RXCAN [pin 2]
- SCK [pin 14]
- SI [pin 16]
- SO [pin 17]
- TXCAN [pin 1]
- VDD [pin 20]
- VSS [pin 10]

### U6 — [MCP2562\-E\-SN](https://flux.ai/jecstronic/mcp2562-e-sn~qto.md)

- Datasheet URL: http://www\.microchip\.com/mymicrochip/filehandler\.aspx?ddocname=en561044
- Part Type: Integrated Circuit
- Manufacturer Part Number: MCP2562\-E/SN
- Role: CAN Transceiver
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: Microchip
- Role Details: CANH/CANL physical layer for BMS/PCS CAN; VDD from 5 V, VIO from ATmega VCC\.

**Pins:**
- CANH [pin 7]
- CANL [pin 6]
- RXD [pin 4]
- STBY [pin 8]
- TXD [pin 1]
- VDD [pin 3]
- Vio [pin 5]
- VSS [pin 2]

### U7 — [MAX485CSA\+](https://flux.ai/adrian95/max485csaplus~p25.md)

- Manufacturer Part Number: MAX485CSA\+
- License: https://creativecommons\.org/licenses/by/4\.0/
- Role Details: Half\-duplex RS485/Modbus RTU transceiver connected to ATmega GPIO/software UART\.
- Part Type: Integrated Circuit
- Datasheet URL: https://www\.analog\.com/media/en/technical\-documentation/data\-sheets/max1487\-max491\.pdf
- Role: RS485 Transceiver
- Manufacturer Name: Analog Devices Inc\./Maxim Integrated

**Pins:**
- \~RE [pin 2]
- A [pin 6]
- B [pin 7]
- DE [pin 3]
- DI [pin 4]
- GND [pin 5]
- RO [pin 1]
- VCC [pin 8]

### U8 — [AP2112K\-3\.3TRG1](https://flux.ai/adrian95/ap2112k-33trg1~zlq.md)

- Role: 3\.3V Regulator
- Symbol Style: parametric\-v1
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: Diodes Incorporated
- Role Details: 3\.3 V rail for WIZ850io and level shifter A\-side; load budget approx 250 mA peak\.
- Manufacturer Part Number: AP2112K\-3\.3TRG1
- Part Type: Integrated Circuit
- Datasheet URL: https://www\.diodes\.com/assets/Datasheets/AP2112\.pdf

**Pins:**
- EN [pin 3]
- GND [pin 2]
- NC [pin 4]
- VIN [pin 1]
- VOUT [pin 5]

### U9 — [W5500](https://flux.ai/vasy_skral/w5500~9ux.md)

- Part Type: Integrated Circuit
- Manufacturer Name: WIZnet
- Datasheet URL: https://docs\.wiznet\.io/img/products/w5500/w5500\_ds\_v109e\.pdf
- Manufacturer Part Number: W5500
- Symbol Style: parametric\-v1
- Role Details: W5500 SPI Ethernet controller connected directly to ATmega SPI and RJ45 MagJack\.
- Role: Ethernet Controller
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- \~INT [pin 36]
- \~RST [pin 37]
- \~SCS [pin 32]
- 1V2O [pin 22]
- ACTLED [pin 27]
- AGND [pin 3]
- AGND [pin 16]
- AGND [pin 14]
- AGND [pin 48]
- AGND [pin 9]
- AGND [pin 19]
- AVDD [pin 21]
- AVDD [pin 15]
- AVDD [pin 8]
- AVDD [pin 11]
- AVDD [pin 4]
- AVDD [pin 17]
- DNC [pin 7]
- DUPLED [pin 26]
- EXRES1 [pin 10]
- GND [pin 29]
- LINKLED [pin 25]
- MISO [pin 34]
- MOSI [pin 35]
- NC [pin 46]
- NC [pin 12]
- NC [pin 47]
- NC [pin 13]
- PMODE0 [pin 45]
- PMODE1 [pin 44]
- PMODE2 [pin 43]
- RSVD [pin 23]
- RSVD [pin 42]
- RSVD [pin 38]
- RSVD [pin 39]
- RSVD [pin 40]
- RSVD [pin 41]
- RXN [pin 5]
- RXP [pin 6]
- SCLK [pin 33]
- SPDLED [pin 24]
- TOCAP [pin 20]
- TXN [pin 1]
- TXP [pin 2]
- VBG [pin 18]
- VDD [pin 28]
- XI/CLKIN [pin 30]
- XO [pin 31]

### X2 — [NX3225GA\-25MHZ\-STD\-CRG\-2](https://flux.ai/lcsc/nx3225ga-25mhz-std-crg-2~jt15.md)

- Package or Case Code: OSC\-SMD\_4P\-L3\.2\-W2\.5\-BL
- Manufacturer Part Number: NX3225GA\-25MHZ\-STD\-CRG\-2
- Manufacturer Name: NDK
- Part Type: Crystals
- Role: Clock
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_NDK\-NX3225GA\-25MHZ\-STD\-CRG\-2\_C438901\.pdf
- Role Details: 25 MHz W5500 crystal reference\.
- Product Info Url: https://lcsc\.com/product\-detail/SMD\-Crystal\-Resonators\_NDK\-NX3225GA\-STD\-CRG\-2\-25MHZ\_C438901\.html
- JLCPCB Part Class: Extended Part
- LCSC Part Number: C438901

**Pins:**
- 1 [pin 1]
- 3 [pin 3]
- GND [pin 4]
- GND [pin 2]

### Y1 — [NX5032GA\-16MHZ\-STD\-CSU\-2](https://flux.ai/lcsc/nx5032ga-16mhz-std-csu-2~64rh.md)

- Manufacturer Name: NDK
- Package or Case Code: CRYSTAL\-SMD\_L5\.0\-W3\.2\-1
- Manufacturer Part Number: NX5032GA\-16MHZ\-STD\-CSU\-2
- Part Type: Crystals
- Role: Signal Generation
- Product Info Url: https://lcsc\.com/product\-detail/SMD\-Crystal\-Resonators\_NDK\-NX5032GA\-16MHZ\-STD\-CSU\-2\_C485370\.html
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_NDK\-NX5032GA\-16MHZ\-STD\-CSU\-2\_C485370\.pdf
- JLCPCB Part Class: Extended Part
- Role Details: 16 MHz two\-pin crystal connected between XTAL1 and XTAL2\.
- LCSC Part Number: C485370

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### Y2 — [NX5032GA\-16MHZ\-STD\-CSU\-2](https://flux.ai/lcsc/nx5032ga-16mhz-std-csu-2~64rh.md)

- Manufacturer Name: NDK
- Package or Case Code: CRYSTAL\-SMD\_L5\.0\-W3\.2\-1
- Manufacturer Part Number: NX5032GA\-16MHZ\-STD\-CSU\-2
- Part Type: Crystals
- Product Info Url: https://lcsc\.com/product\-detail/SMD\-Crystal\-Resonators\_NDK\-NX5032GA\-16MHZ\-STD\-CSU\-2\_C485370\.html
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_NDK\-NX5032GA\-16MHZ\-STD\-CSU\-2\_C485370\.pdf
- JLCPCB Part Class: Extended Part
- LCSC Part Number: C485370

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/pcbcloner/atmega328p\-minimal\-board\~5i](https://flux.ai/pcbcloner/atmega328p-minimal-board~5i).*

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*Generated from [https://flux\.ai/pcbcloner/atmega328p\-minimal\-board\~5i](https://flux.ai/pcbcloner/atmega328p-minimal-board~5i)*