Mechanical Dimensions & Land Pattern (VQFN-100-EP(12x12))
Extracted from Datasheet & IPC-7351B NormalizedRecommended Companion BOM & Drop-In Equivalents
Passive external components per reference schematic and 1:1 pin-compatible alternatives| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| N/A BOM | Per application circuit VQFN-100-EP(12x12) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — USB5826/KD (VQFN-100-EP(12x12))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of USB5826/KD (VQFN-100-EP(12x12))?
Manufactured by MICROCHIP, the USB5826/KD is housed in a VQFN-100-EP(12x12) package with 101 pins and a 0.40 mm lead pitch. Key pins include: 1 (RBIAS: Multiplexed I/O & Peripheral Pin RBIAS (General)), 2 (VDD33: Power Supply Input (VDD33 — 3.3V / 5.0V Standard Logic)), 3 (XTALI/CLKIN: Multiplexed I/O & Peripheral Pin XTALI/CLKIN (RTC/CLK)), 4 (XTALO: Multiplexed I/O & Peripheral Pin XTALO (RTC/CLK)), 5 (VDD33: Power Supply Input (VDD33 — 3.3V / 5.0V Standard Logic)), 6 (USB2DN DP1/PRT_DISP1__: Multiplexed I/O & Peripheral Pin USB2DN DP1/PRT_DISP1__ (USB)).
What are the IPC-7351B PCB Footprint dimensions for USB5826/KD?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), USB5826/KD (VQFN-100-EP(12x12)) has a nominal body envelope of 12.00 × 12.00 mm, pitch e = 0.40 mm, and 101 copper pads plus a central exposed thermal pad (EPAD) of 8.00 × 8.00 mm with a 60% IPC-7525 windowed solder paste grid.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for USB5826/KD?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for USB5826/KD (MICROCHIP, VQFN-100-EP(12x12)) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.
Static Reference Appendix: Pinout Table (101 pins) & USB5826 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | RBIAS | Digital_IO | Signal terminal RBIAS (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RBIAS. Supported peripheral buses: General. |
| 2 | VDD33 | Power_In | Primary positive power supply input (VDD33) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 3 | XTALI/CLKIN | Digital_IO | Signal terminal XTALI/CLKIN (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: XTALI/CLKIN. Supported peripheral buses: RTC/CLK. |
| 4 | XTALO | Digital_IO | Signal terminal XTALO (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: XTALO. Supported peripheral buses: RTC/CLK. |
| 5 | VDD33 | Power_In | Primary positive power supply input (VDD33) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 6 | USB2DN DP1/PRT_DISP1__ | Digital_IO | Signal terminal USB2DN DP1/PRT_DISP1__ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB2DN DP1/PRT_DISP1__. Supported peripheral buses: USB. |
| 7 | USB2DN DM1/PRT_DISM1__ | Digital_IO | Signal terminal USB2DN DM1/PRT_DISM1__ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB2DN DM1/PRT_DISM1__. Supported peripheral buses: USB. |
| 8 | USB3DN_TXDP1A | Digital_IO | Signal terminal USB3DN_TXDP1A (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_TXDP1A. Supported peripheral buses: USB, UART. |
| 9 | USB3DN_TXDM1A | Digital_IO | Signal terminal USB3DN_TXDM1A (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_TXDM1A. Supported peripheral buses: USB, UART. |
| 10 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 11 | USB3DN_RXDP1A | Digital_IO | Signal terminal USB3DN_RXDP1A (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_RXDP1A. Supported peripheral buses: USB, UART. |
| 12 | USB3DN_RXDM1A | Digital_IO | Signal terminal USB3DN_RXDM1A (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_RXDM1A. Supported peripheral buses: USB, UART. |
| 13 | USB2DN DP5/PRT_DISP5__ | Digital_IO | Signal terminal USB2DN DP5/PRT_DISP5__ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB2DN DP5/PRT_DISP5__. Supported peripheral buses: USB. |
| 14 | USB2DN DM5/PRT_DISM5__ | Digital_IO | Signal terminal USB2DN DM5/PRT_DISM5__ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB2DN DM5/PRT_DISM5__. Supported peripheral buses: USB. |
| 15 | USB3DN_TXDP1B | Digital_IO | Signal terminal USB3DN_TXDP1B (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_TXDP1B. Supported peripheral buses: USB, UART. |
| 16 | USB3DN_TXDM1B | Digital_IO | Signal terminal USB3DN_TXDM1B (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_TXDM1B. Supported peripheral buses: USB, UART. |
| 17 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 18 | USB3DN_RXDP1B | Digital_IO | Signal terminal USB3DN_RXDP1B (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_RXDP1B. Supported peripheral buses: USB, UART. |
| 19 | USB3DN_RXDM1B | Digital_IO | Signal terminal USB3DN_RXDM1B (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_RXDM1B. Supported peripheral buses: USB, UART. |
| 20 | GPIO12/CFG_STRAP | Digital_IO | Signal terminal GPIO12/CFG_STRAP (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO12/CFG_STRAP. Supported peripheral buses: General. |
| 21 | NC | NC | Signal terminal NC (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 22 | NC | NC | Signal terminal NC (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: NC. Supported peripheral buses: General. |
| 23 | TESTEN | Digital_IO | Signal terminal TESTEN (I, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: TESTEN. Supported peripheral buses: General. |
| 24 | VBUS_DET | Power_In | Primary positive power supply input (VBUS_DET) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 25 | RESET_N | Digital_IO | Active-low hardware reset terminal (RESET_N): pulling this pin Low resets the processor core and peripherals. |
| 26 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 27 | VDD33 | Power_In | Primary positive power supply input (VDD33) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 28 | USB2DN DP2/PRT_DISP2__ | Digital_IO | Signal terminal USB2DN DP2/PRT_DISP2__ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB2DN DP2/PRT_DISP2__. Supported peripheral buses: USB. |
| 29 | USB2DN DM2/PRT_DISM2__ | Digital_IO | Signal terminal USB2DN DM2/PRT_DISM2__ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB2DN DM2/PRT_DISM2__. Supported peripheral buses: USB. |
| 30 | USB3DN_TXDP2A | Digital_IO | Signal terminal USB3DN_TXDP2A (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_TXDP2A. Supported peripheral buses: USB, UART. |
| 31 | USB3DN_TXDM2A | Digital_IO | Signal terminal USB3DN_TXDM2A (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_TXDM2A. Supported peripheral buses: USB, UART. |
| 32 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 33 | USB3DN_RXDP2A | Digital_IO | Signal terminal USB3DN_RXDP2A (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_RXDP2A. Supported peripheral buses: USB, UART. |
| 34 | USB3DN_RXDM2A | Digital_IO | Signal terminal USB3DN_RXDM2A (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_RXDM2A. Supported peripheral buses: USB, UART. |
| 35 | USB2DN DP6/PRT_DISP6__ | Digital_IO | Signal terminal USB2DN DP6/PRT_DISP6__ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB2DN DP6/PRT_DISP6__. Supported peripheral buses: USB. |
| 36 | USB2DN DM6/PRT_DISM6__ | Digital_IO | Signal terminal USB2DN DM6/PRT_DISM6__ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB2DN DM6/PRT_DISM6__. Supported peripheral buses: USB. |
| 37 | USB3DN_TXDP2B | Digital_IO | Signal terminal USB3DN_TXDP2B (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_TXDP2B. Supported peripheral buses: USB, UART. |
| 38 | USB3DN_TXDM2B | Digital_IO | Signal terminal USB3DN_TXDM2B (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_TXDM2B. Supported peripheral buses: USB, UART. |
| 39 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 40 | USB3DN_RXDP2B | Digital_IO | Signal terminal USB3DN_RXDP2B (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_RXDP2B. Supported peripheral buses: USB, UART. |
| 41 | USB3DN_RXDM2B | Digital_IO | Signal terminal USB3DN_RXDM2B (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_RXDM2B. Supported peripheral buses: USB, UART. |
| 42 | VDD33 | Power_In | Primary positive power supply input (VDD33) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 43 | USB2DN DP3/PRT_DISP3__ | Digital_IO | Signal terminal USB2DN DP3/PRT_DISP3__ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB2DN DP3/PRT_DISP3__. Supported peripheral buses: USB. |
| 44 | USB2DN DM3/PRT_DISM3__ | Digital_IO | Signal terminal USB2DN DM3/PRT_DISM3__ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB2DN DM3/PRT_DISM3__. Supported peripheral buses: USB. |
| 45 | USB3DN_TXDP3 | Digital_IO | Signal terminal USB3DN_TXDP3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_TXDP3. Supported peripheral buses: USB, UART. |
| 46 | USB3DN_TXDM3 | Digital_IO | Signal terminal USB3DN_TXDM3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_TXDM3. Supported peripheral buses: USB, UART. |
| 47 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 48 | USB3DN_RXDP3 | Digital_IO | Signal terminal USB3DN_RXDP3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_RXDP3. Supported peripheral buses: USB, UART. |
| 49 | USB3DN_RXDM3 | Digital_IO | Signal terminal USB3DN_RXDM3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: USB3DN_RXDM3. Supported peripheral buses: USB, UART. |
| 50 | AB1/ATTACHMUX1B/GPIO65 | Digital_IO | Signal terminal AB1/ATTACHMUX1B/GPIO65 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: AB1/ATTACHMUX1B/GPIO65. Supported peripheral buses: General. |
| 51 | PRT_CTL4/GPIO22 | Digital_IO | Signal terminal PRT_CTL4/GPIO22 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PRT_CTL4/GPIO22. Supported peripheral buses: General. |
| 52 | PRT_CTL3/GPIO21 | Digital_IO | Signal terminal PRT_CTL3/GPIO21 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PRT_CTL3/GPIO21. Supported peripheral buses: General. |
| 53 | HOST_TYPE0/GPIO23 | Digital_IO | Signal terminal HOST_TYPE0/GPIO23 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: HOST_TYPE0/GPIO23. Supported peripheral buses: General. |
| 54 | VDD33 | Power_In | Primary positive power supply input (VDD33) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 55 | HOST_TYPE1/GPIO67 | Digital_IO | Signal terminal HOST_TYPE1/GPIO67 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: HOST_TYPE1/GPIO67. Supported peripheral buses: General. |
| 56 | IO56 | Digital_IO | General Purpose Digital I/O Pin IO56 |
| 57 | IO57 | Digital_IO | General Purpose Digital I/O Pin IO57 |
| 58 | PRT_CTL2/GPIO19 | Digital_IO | Signal terminal PRT_CTL2/GPIO19 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PRT_CTL2/GPIO19. Supported peripheral buses: General. |
| 59 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 60 | GPIO3 | Digital_IO | Signal terminal GPIO3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO3. Supported peripheral buses: General. |
| 61 | CC_POL/GPIO71 | Digital_IO | Signal terminal CC_POL/GPIO71 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: CC_POL/GPIO71. Supported peripheral buses: General. |
| 62 | PRT_CTL5/GPIO18 | Digital_IO | Signal terminal PRT_CTL5/GPIO18 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PRT_CTL5/GPIO18. Supported peripheral buses: General. |
| 63 | ALT_MUX_EN/GPIO70 | Digital_IO | Signal terminal ALT_MUX_EN/GPIO70 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: ALT_MUX_EN/GPIO70. Supported peripheral buses: General. |
| 64 | VDD33 | Power_In | Primary positive power supply input (VDD33) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |






