Mechanical Dimensions & Land Pattern (QFN-32-EP(5x5))
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-32-EP(5x5) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — KSZ8061RNBW-TR (QFN-32-EP(5x5))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of KSZ8061RNBW-TR (QFN-32-EP(5x5))?
Manufactured by MICROCHIP, the KSZ8061RNBW-TR is housed in a QFN-32-EP(5x5) package with 33 pins and a 0.50 mm lead pitch. Key pins include: 1 (XI: Multiplexed I/O & Peripheral Pin XI (RTC/CLK)), 2 (XO: Multiplexed I/O & Peripheral Pin XO (RTC/CLK)), 3 (AVDDH: Power Supply Input (AVDDH — 3.3V / 5.0V Standard Logic)), 4 (TXP: Multiplexed I/O & Peripheral Pin TXP (General)), 5 (TXM: Multiplexed I/O & Peripheral Pin TXM (General)), 6 (RXP: Multiplexed I/O & Peripheral Pin RXP (General)).
What are the IPC-7351B PCB Footprint dimensions for KSZ8061RNBW-TR?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), KSZ8061RNBW-TR (QFN-32-EP(5x5)) has a nominal body envelope of 5.00 × 5.00 mm, pitch e = 0.50 mm, and 33 copper pads plus a central exposed thermal pad (EPAD) of 3.10 × 3.10 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 KSZ8061RNBW-TR?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for KSZ8061RNBW-TR (MICROCHIP, QFN-32-EP(5x5)) 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 (33 pins) & KSZ8061 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | XI | Digital_IO | Signal terminal XI (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: XI. Supported peripheral buses: RTC/CLK. |
| 2 | XO | Digital_IO | Signal terminal XO (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: XO. Supported peripheral buses: RTC/CLK. |
| 3 | AVDDH | Power_In | Primary positive power supply input (AVDDH) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 4 | TXP | Digital_IO | Signal terminal TXP (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: TXP. Supported peripheral buses: General. |
| 5 | TXM | Digital_IO | Signal terminal TXM (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: TXM. Supported peripheral buses: General. |
| 6 | RXP | Digital_IO | Signal terminal RXP (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RXP. Supported peripheral buses: General. |
| 7 | RXM | Digital_IO | Signal terminal RXM (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RXM. Supported peripheral buses: General. |
| 8 | AVDDL | Power_In | Primary positive power supply input (AVDDL) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 9 | VDDL | Power_In | Primary positive power supply input (VDDL) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 10 | MDIO | Open_Drain | Signal terminal MDIO (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: MDIO. Supported peripheral buses: General. |
| 11 | MDC | Digital_IO | Signal terminal MDC (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: MDC. Supported peripheral buses: General. |
| 12 | RXER/QWF | Digital_IO | Signal terminal RXER/QWF (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RXER/QWF. Supported peripheral buses: General. |
| 13 | RXDV/ CONFIG2 | Digital_IO | Signal terminal RXDV/ CONFIG2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RXDV/ CONFIG2. Supported peripheral buses: UART. |
| 14 | RXD3/ PHYAD0 | Digital_IO | Signal terminal RXD3/ PHYAD0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RXD3/ PHYAD0. Supported peripheral buses: UART. |
| 15 | VDDIO | Power_In | Primary positive power supply input (VDDIO) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 16 | RXD2/ PHYAD1 | Digital_IO | Signal terminal RXD2/ PHYAD1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RXD2/ PHYAD1. Supported peripheral buses: UART. |
| 17 | RXD1/ PHYAD2 | Digital_IO | Signal terminal RXD1/ PHYAD2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RXD1/ PHYAD2. Supported peripheral buses: UART. |
| 18 | RXD0/ AUTONEG | Digital_IO | Signal terminal RXD0/ AUTONEG (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RXD0/ AUTONEG. Supported peripheral buses: UART. |
| 19 | RXC/ CONFIG0 | Digital_IO | Signal terminal RXC/ CONFIG0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RXC/ CONFIG0. Supported peripheral buses: General. |
| 20 | TXC | Digital_IO | Signal terminal TXC (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: TXC. Supported peripheral buses: General. |
| 21 | TXEN | Digital_IO | Signal terminal TXEN (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: TXEN. Supported peripheral buses: General. |
| 22 | TXD0 | Digital_IO | Signal terminal TXD0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: TXD0. Supported peripheral buses: UART. |
| 23 | TXD1 | Digital_IO | Signal terminal TXD1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: TXD1. Supported peripheral buses: UART. |
| 24 | LED0 | Digital_IO | Signal terminal LED0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: LED0. Supported peripheral buses: General. |
| 25 | TXD2 | Digital_IO | Signal terminal TXD2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: TXD2. Supported peripheral buses: UART. |
| 26 | TXD3 | Digital_IO | Signal terminal TXD3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: TXD3. Supported peripheral buses: UART. |
| 27 | CRS/ CONFIG1 | Digital_IO | Signal terminal CRS/ CONFIG1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: CRS/ CONFIG1. Supported peripheral buses: General. |
| 28 | RESET# | Digital_IO | Active-low hardware reset terminal (RESET#): pulling this pin Low resets the processor core and peripherals. |
| 29 | INTRP/ NAND Tree#_ | Open_Drain | Signal terminal INTRP/ NAND Tree#_ (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: INTRP/ NAND Tree#_. Supported peripheral buses: General. |
| 30 | VDDL | Power_In | Primary positive power supply input (VDDL) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 31 | REXT | Digital_IO | Signal terminal REXT (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: REXT. Supported peripheral buses: General. |
| 32 | SIGDET | Digital_IO | Signal terminal SIGDET (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: SIGDET. Supported peripheral buses: General. |
| 33 | EP | GND | Bottom exposed die attach pad (EP) providing primary thermal conduction path to the PCB and low-inductance 0V ground return. |









