Mechanical Dimensions & Land Pattern (QFN-64-EP(9x9))
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 QFN-64-EP(9x9) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — USB5734-I/MR (QFN-64-EP(9x9))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of USB5734-I/MR (QFN-64-EP(9x9))?
Manufactured by MICROCHIP, the USB5734-I/MR is housed in a QFN-64-EP(9x9) package with 65 pins and a 0.50 mm lead pitch, supporting a VCC supply range of 2.1V to 3.63V. Key pins include: 1 (ATEST: Multiplexed I/O & Peripheral Pin ATEST (General)), 2 (USB2DN DP1/PRT_DISP1__: Multiplexed I/O & Peripheral Pin USB2DN DP1/PRT_DISP1__ (USB)), 3 (USB2DN DM1/PRT_DISM1__: Multiplexed I/O & Peripheral Pin USB2DN DM1/PRT_DISM1__ (USB)), 4 (VDD33: Power Supply Input (VDD33 — 2.1V to 3.63V)), 5 (USB3DN_TXDM1: Multiplexed I/O & Peripheral Pin USB3DN_TXDM1 (USB, UART)), 6 (VDD12: Power Supply Input (VDD12 — 2.1V to 3.63V)).
What are the IPC-7351B PCB Footprint dimensions for USB5734-I/MR?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), USB5734-I/MR (QFN-64-EP(9x9)) has a nominal body envelope of 9.00 × 9.00 mm, pitch e = 0.50 mm, and 65 copper pads plus a central exposed thermal pad (EPAD) of 5.76 × 5.76 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 USB5734-I/MR?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for USB5734-I/MR (MICROCHIP, QFN-64-EP(9x9)) 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 (65 pins) & USB5734 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | ATEST | Digital_IO | Signal terminal ATEST (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: ATEST. Supported peripheral buses: General. |
| 2 | USB2DN DP1/PRT_DISP1__ | Digital_IO | Signal terminal USB2DN DP1/PRT_DISP1__ (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB2DN DP1/PRT_DISP1__. Supported peripheral buses: USB. |
| 3 | USB2DN DM1/PRT_DISM1__ | Digital_IO | Signal terminal USB2DN DM1/PRT_DISM1__ (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB2DN DM1/PRT_DISM1__. Supported peripheral buses: USB. |
| 4 | VDD33 | Power_In | Primary positive power supply input (VDD33) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 5 | USB3DN_TXDM1 | Digital_IO | Signal terminal USB3DN_TXDM1 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_TXDM1. Supported peripheral buses: USB, UART. |
| 6 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 7 | PROG FUNC[7:1]_ | Digital_IO | Signal terminal PROG FUNC[7:1]_ (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PROG FUNC[7:1]_. Supported peripheral buses: General. |
| 8 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 9 | USB2DN DP2/PRT_DISP2__ | Digital_IO | Signal terminal USB2DN DP2/PRT_DISP2__ (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB2DN DP2/PRT_DISP2__. Supported peripheral buses: USB. |
| 10 | USB2DN DM2/PRT_DISM2__ | Digital_IO | Signal terminal USB2DN DM2/PRT_DISM2__ (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB2DN DM2/PRT_DISM2__. Supported peripheral buses: USB. |
| 11 | USB3DN_TXDP2 | Digital_IO | Signal terminal USB3DN_TXDP2 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_TXDP2. Supported peripheral buses: USB, UART. |
| 12 | USB3DN_TXDM2 | Digital_IO | Signal terminal USB3DN_TXDM2 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_TXDM2. Supported peripheral buses: USB, UART. |
| 13 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 14 | USB3DN_RXDP2 | Digital_IO | Signal terminal USB3DN_RXDP2 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_RXDP2. Supported peripheral buses: USB, UART. |
| 15 | USB3DN_RXDM2 | Digital_IO | Signal terminal USB3DN_RXDM2 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_RXDM2. Supported peripheral buses: USB, UART. |
| 16 | PROG_FUNC7 | Digital_IO | Signal terminal PROG_FUNC7 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PROG_FUNC7. Supported peripheral buses: General. |
| 17 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 18 | VDD33 | Power_In | Primary positive power supply input (VDD33) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 19 | USB2DN DP3/PRT_DISP3__ | Digital_IO | Signal terminal USB2DN DP3/PRT_DISP3__ (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB2DN DP3/PRT_DISP3__. Supported peripheral buses: USB. |
| 20 | USB2DN DM3/PRT_DISM3__ | Digital_IO | Signal terminal USB2DN DM3/PRT_DISM3__ (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB2DN DM3/PRT_DISM3__. Supported peripheral buses: USB. |
| 21 | USB3DN_TXDP3 | Digital_IO | Signal terminal USB3DN_TXDP3 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_TXDP3. Supported peripheral buses: USB, UART. |
| 22 | USB3DN_TXDM3 | Digital_IO | Signal terminal USB3DN_TXDM3 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_TXDM3. Supported peripheral buses: USB, UART. |
| 23 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 24 | USB3DN_RXDP3 | Digital_IO | Signal terminal USB3DN_RXDP3 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_RXDP3. Supported peripheral buses: USB, UART. |
| 25 | USB3DN_RXDM3 | Digital_IO | Signal terminal USB3DN_RXDM3 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_RXDM3. Supported peripheral buses: USB, UART. |
| 26 | USB2DN DP4/PRT_DISP4__ | Digital_IO | Signal terminal USB2DN DP4/PRT_DISP4__ (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB2DN DP4/PRT_DISP4__. Supported peripheral buses: USB. |
| 27 | USB2DN DM4/PRT_DISM4__ | Digital_IO | Signal terminal USB2DN DM4/PRT_DISM4__ (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB2DN DM4/PRT_DISM4__. Supported peripheral buses: USB. |
| 28 | USB3DN_TXDP4 | Digital_IO | Signal terminal USB3DN_TXDP4 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_TXDP4. Supported peripheral buses: USB, UART. |
| 29 | USB3DN_TXDM4 | Digital_IO | Signal terminal USB3DN_TXDM4 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_TXDM4. Supported peripheral buses: USB, UART. |
| 30 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 31 | USB3DN_RXDP4 | Digital_IO | Signal terminal USB3DN_RXDP4 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_RXDP4. Supported peripheral buses: USB, UART. |
| 32 | USB3DN_RXDM4 | Digital_IO | Signal terminal USB3DN_RXDM4 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3DN_RXDM4. Supported peripheral buses: USB, UART. |
| 33 | VDD33 | Power_In | Primary positive power supply input (VDD33) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 34 | PRT_CTL4/GANG_PWR# | Digital_IO | Signal terminal PRT_CTL4/GANG_PWR# (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PRT_CTL4/GANG_PWR#. Supported peripheral buses: General. |
| 35 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 36 | PRT_CTL3 | Digital_IO | Signal terminal PRT_CTL3 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PRT_CTL3. Supported peripheral buses: General. |
| 37 | PRT_CTL2 | Digital_IO | Signal terminal PRT_CTL2 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PRT_CTL2. Supported peripheral buses: General. |
| 38 | PRT_CTL1 | Digital_IO | Signal terminal PRT_CTL1 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PRT_CTL1. Supported peripheral buses: General. |
| 39 | PROG_FUNC2 | Digital_IO | Signal terminal PROG_FUNC2 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PROG_FUNC2. Supported peripheral buses: General. |
| 40 | PROG_FUNC3 | Digital_IO | Signal terminal PROG_FUNC3 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PROG_FUNC3. Supported peripheral buses: General. |
| 41 | VBUS_DET/GPIO16 | Power_In | Primary positive power supply input (VBUS_DET/GPIO16) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 42 | IO42 | Digital_IO | General Purpose Digital I/O Pin IO42 |
| 43 | IO43 | Digital_IO | General Purpose Digital I/O Pin IO43 |
| 44 | IO44 | Digital_IO | General Purpose Digital I/O Pin IO44 |
| 45 | IO45 | Digital_IO | General Purpose Digital I/O Pin IO45 |
| 46 | PROG_FUNC4 | Digital_IO | Signal terminal PROG_FUNC4 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PROG_FUNC4. Supported peripheral buses: General. |
| 47 | PROG_FUNC5 | Digital_IO | Signal terminal PROG_FUNC5 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PROG_FUNC5. Supported peripheral buses: General. |
| 48 | RESET_N | Digital_IO | Active-low hardware reset terminal (RESET_N): pulling this pin Low resets the processor core and peripherals. |
| 49 | PROG_FUNC6 | Digital_IO | Signal terminal PROG_FUNC6 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PROG_FUNC6. Supported peripheral buses: General. |
| 50 | PROG_FUNC1 | Digital_IO | Signal terminal PROG_FUNC1 (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: PROG_FUNC1. Supported peripheral buses: General. |
| 51 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 52 | VDD33 | Power_In | Primary positive power supply input (VDD33) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 53 | USB2UP_DP | Digital_IO | Signal terminal USB2UP_DP (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB2UP_DP. Supported peripheral buses: USB. |
| 54 | USB2UP_DM | Digital_IO | Signal terminal USB2UP_DM (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB2UP_DM. Supported peripheral buses: USB. |
| 55 | USB3UP_TXDP | Digital_IO | Signal terminal USB3UP_TXDP (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3UP_TXDP. Supported peripheral buses: USB, UART. |
| 56 | USB3UP_TXDM | Digital_IO | Signal terminal USB3UP_TXDM (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3UP_TXDM. Supported peripheral buses: USB, UART. |
| 57 | VDD12 | Power_In | Primary positive power supply input (VDD12) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 58 | USB3UP_RXDP | Digital_IO | Signal terminal USB3UP_RXDP (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3UP_RXDP. Supported peripheral buses: USB, UART. |
| 59 | USB3UP_RXDM | Digital_IO | Signal terminal USB3UP_RXDM (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: USB3UP_RXDM. Supported peripheral buses: USB, UART. |
| 60 | ATEST | Digital_IO | Signal terminal ATEST (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: ATEST. Supported peripheral buses: General. |
| 61 | XTALO | Digital_IO | Signal terminal XTALO (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: XTALO. Supported peripheral buses: RTC/CLK. |
| 62 | XTALI/CLK_IN | Digital_IO | Signal terminal XTALI/CLK_IN (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: XTALI/CLK_IN. Supported peripheral buses: RTC/CLK. |
| 63 | VDD33 | Power_In | Primary positive power supply input (VDD33) operating in the 2.1V to 3.63V domain (Max rating: 3.63V). |
| 64 | RBIAS | Digital_IO | Signal terminal RBIAS (I/O, 2.1V to 3.63V domain). Multiplexed alternate functions: RBIAS. Supported peripheral buses: General. |






