

Avrisp mkII
Atmel AVRISP MKII
- Size
- 51.3 × 17 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 38
- Pads
- 175
- Tracks, vias
- 430, 50
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 24 May 2020
- Updated
- 20 Nov 2020
Overview
Avrisp mkII is an open-source printed circuit board by joshajohnson, from the joshajohnson/avrisp-mkII repository on GitHub. It is a 2-layer board of 51.3 × 17 mm with 47 parts on 38 nets, routed with 430 tracks and 50 vias.
It is built around the AT90USB162-16AU, AP2112K-3.3 and USBLC6-2SC6, with the BAT54C among its other parts. Its parts include 12 capacitors, 8 resistors, 6 diodes, 4 ICs and 4 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4AT90USB162-16AU
TQFP-32-40℃~+85℃ 16KB 16MHz 2.7V~5.5V 22 512Byte 512Byte 8 Bit AVR Built-in FLASH TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorisedUSBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)BAT54C
SOT-231 Pair Common Cathode 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-23 Schottky Diodes ROHSNexperiaSchottky Diodes
README
README.mdAVRISP-MKII
AVRISP-MKII clone, in a small form factor with USB Type C connector.

BUGS
- HWB does not appear to put the board into DFU.
- To flash the board, RST on the ISP header needs to be connected to RST on the MCU, and disconnected after.
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100n | Capacitor_SMD:C_0603_1608Metric | C3, C8, C9, C10, C12 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C1, C2, C7 |
| 2 | 1K | Resistor_SMD:R_Array_Convex_4x0603 | RN1, RN2 |
| 2 | 2.54 THT | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2, J3 |
| 2 | 22P | Capacitor_SMD:C_0603_1608Metric | C5, C6 |
| 2 | 22R | Resistor_SMD:R_0603_1608Metric | R5, R6 |
| 2 | 5K1 | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | 600R | josh-passives-smt:Ferrite_Bead_0603 | FB1, FB2 |
| 2 | BAT54C | Package_TO_SOT_SMD:SOT-23 | D4, D6 |
| 1 | 100R | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 100mA | josh-passives-smt:Fuse_0805_2012Metric | F1 |
| 1 | 100u | Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I | C4 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C11 |
| 1 | 16MHz | josh-oscillators:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 1M | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 1N4148 | Diode_SMD:D_SOD-323 | D1 |
| 1 | 200R | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | ACT | LED_SMD:LED_0603_1608Metric | D5 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | AT90USB162-16AU | Package_QFP:TQFP-32_7x7mm_P0.8mm | U4 |
| 1 | AVR ISP | Connector_IDC:IDC-Header_2x03_P2.54mm_Vertical | J4 |
| 1 | Board-Title | josh-logos:board-title | LOGO1 |
| 1 | Josh-Details | josh-logos:josh-details | LOGO3 |
| 1 | Josh-Logo | josh-logos:josh-johnson-logo-8_6x1_5 | LOGO2 |
| 1 | MCP130-xxxxTT | Package_TO_SOT_SMD:SOT-23 | U3 |
| 1 | OSHW_FMask | josh-logos:OSHW_Logo_3.6x3.6_F.Mask | LOGO4 |
| 1 | PWR | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | RST | josh-buttons-switches:Panasonic_EVQPUL_EVQPUC | SW1 |
| 1 | STAT | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | SW_Push | josh-buttons-switches:Panasonic_EVQPUL_EVQPUC | SW2 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | USB_C_Receptacle_USB2.0 | josh-connectors:USB_C_U262-161N-4BVC11 | J1 |
| 1 | VCC_SEL | Jumper:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm | JP1 |
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Questions
How big is the Avrisp mkII PCB?
It measures 51.3 × 17 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Avrisp mkII use?
47 parts, built around the AT90USB162-16AU, AP2112K-3.3, USBLC6-2SC6 and BAT54C. 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 Avrisp mkII KiCad files?
From the joshajohnson/avrisp-mkII repository on GitHub, at the commit this page was made from: the board is hardware/0.1/avrisp-mkII.kicad_pcb and its schematic hardware/0.2/avrisp-mkII.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Avrisp mkII design in my own project?
Its repository states no licence, so its author keeps all rights: ask joshajohnson before reusing the design.