Mechanical Dimensions & Land Pattern (QFN-16(3x3))
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-16(3x3) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — CH282P (QFN-16(3x3))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of CH282P (QFN-16(3x3))?
Manufactured by WCH, the CH282P is housed in a QFN-16(3x3) package with 17 pins and a 0.50 mm lead pitch. Key pins include: 1 (HIN1: Multiplexed I/O & Peripheral Pin HIN1 (General)), 2 (LIN3: Multiplexed I/O & Peripheral Pin LIN3 (General)), 3 (LIN2: Multiplexed I/O & Peripheral Pin LIN2 (General)), 4 (LIN1: Multiplexed I/O & Peripheral Pin LIN1 (General)), 5 (VDD5/3V3: Power Supply Input (VDD5/3V3 — 3.3V / 5.0V Standard Logic)), 6 (VHREG: Multiplexed I/O & Peripheral Pin VHREG (General)).
What are the IPC-7351B PCB Footprint dimensions for CH282P?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), CH282P (QFN-16(3x3)) has a nominal body envelope of 3.00 × 3.00 mm, pitch e = 0.50 mm, and 17 copper pads plus a central exposed thermal pad (EPAD) of 1.60 × 1.60 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 CH282P?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for CH282P (WCH, QFN-16(3x3)) 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 (17 pins) & CH282 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | HIN1 | Digital_IO | Signal terminal HIN1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: HIN1. Supported peripheral buses: General. |
| 2 | LIN3 | Digital_IO | Signal terminal LIN3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: LIN3. Supported peripheral buses: General. |
| 3 | LIN2 | Digital_IO | Signal terminal LIN2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: LIN2. Supported peripheral buses: General. |
| 4 | LIN1 | Digital_IO | Signal terminal LIN1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: LIN1. Supported peripheral buses: General. |
| 5 | VDD5/3V3 | Power_In | Primary positive power supply input (VDD5/3V3) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 6 | VHREG | Digital_IO | Signal terminal VHREG (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VHREG. Supported peripheral buses: General. |
| 7 | VHV | Digital_IO | Signal terminal VHV (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: VHV. Supported peripheral buses: General. |
| 8 | HO1 | Digital_IO | Signal terminal HO1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: HO1. Supported peripheral buses: General. |
| 9 | LO1 | Digital_IO | Signal terminal LO1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: LO1. Supported peripheral buses: General. |
| 10 | HO2 | Digital_IO | Signal terminal HO2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: HO2. Supported peripheral buses: General. |
| 11 | LO2 | Digital_IO | Signal terminal LO2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: LO2. Supported peripheral buses: General. |
| 12 | HO3 | Digital_IO | Signal terminal HO3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: HO3. Supported peripheral buses: General. |
| 13 | LO3 | Digital_IO | Signal terminal LO3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: LO3. Supported peripheral buses: General. |
| 14 | PU5L3 | Digital_IO | Signal terminal PU5L3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PU5L3. Supported peripheral buses: General. |
| 15 | HIN3 | Digital_IO | Signal terminal HIN3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: HIN3. Supported peripheral buses: General. |
| 16 | HIN2 | Digital_IO | Signal terminal HIN2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: HIN2. Supported peripheral buses: General. |
| 17 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |
