2 layers53.5 × 26.5 mm
2 layers20.3 × 30.5 mm
Attiny1614
bassothebasso/tiny1614ATTiny1614 Breakout Board
- Size
- 20.3 × 30.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 23
- Pads
- 72
- Tracks, vias
- 105, 8
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 26 Oct 2026
- Updated
- 26 Oct 2026
Overview
Attiny1614 is an open-source printed circuit board by bassothebasso, from the bassothebasso/tiny1614 repository on GitHub. It is a 2-layer board of 20.3 × 30.5 mm with 13 parts on 23 nets, routed with 105 tracks and 8 vias.
It is built around the ATTINY1614-SSN and AP2112K-3.3. Its parts include 4 connectors, 3 capacitors, 3 resistors, 2 ICs and 1 diode. It belongs with the interfaces and adapters and microcontroller boards boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
2
ATTINY1614-SSN
SOIC-14-40℃~+105℃ 1.8V~5.5V 10bit 12 16KB 20MHz 256Byte 2KB 8 Bit 8bit AVR Built-in FLASH SOIC-14 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
README
README.mdATtiny1614 Breadboard friendly breakout board design. Not manufactured or tested (yet!)
Some features:
- Attiny1614 (20MHz, 16KB Flash) microcontroller
- USB-C Power supply w/ AP2112K LDO
- UPDI Header for programming
- 600mil DIP form factor
Pinout
The board pins are mapped 1:1 to the physical pins of the ATtiny1614 microcontroller
Left Header
| J3 Pin | Net / Label | ATtiny1614 Pin | Description |
|---|---|---|---|
| 1 | +3V3 | 1 (VCC) | LDO Out |
| 2 | PA4 | 2 | GPIO / Alt I2C SDA |
| 3 | PA5 | 3 | GPIO |
| 4 | PA6 | 4 | GPIO |
| 5 | PA7 | 5 | GPIO |
| 6 | PB3 | 6 | GPIO / Serial RX |
| 7 | PB2 | 7 | GPIO / Serial TX |
Right Header
| J4 Pin | Net / Label | ATtiny1614 Pin | Description |
|---|---|---|---|
| 1 | GND | 14 (GND) | |
| 2 | PA3 | 13 | GPIO / SPI SCK |
| 3 | PA2 | 12 | GPIO / SPI MISO |
| 4 | PA1 | 11 | GPIO / SPI MOSI / I2C SDA |
| 5 | UPDI | 10 (PA0) | UPDI Programming / Reset |
| 6 | PB0 | 9 | GPIO / I2C SCL |
| 7 | PB1 | 8 | GPIO / I2C SDA |
Programming Header
| J2 Pin | Function |
|---|---|
| 1 | UPDI (Connected to ATtiny Pin 10) |
| 2 | +3V3 (Target Power) |
| 3 | GND (Common Ground) |
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | Conn_01x07 | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | J3, J4 |
| 1 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 1 | 2.2u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U2 |
| 1 | ATtiny1614-SS | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | LED_PWR | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
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Questions
How big is the Attiny1614 PCB?
It measures 20.3 × 30.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Attiny1614 use?
13 parts, built around the ATTINY1614-SSN and AP2112K-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Attiny1614 KiCad files?
From the bassothebasso/tiny1614 repository on GitHub, at the commit this page was made from: the board is Hardware/attiny1614.kicad_pcb and its schematic Hardware/attiny1614.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Attiny1614 design in my own project?
Its repository states no licence, so its author keeps all rights: ask bassothebasso before reusing the design.