Mechanical Dimensions & Land Pattern (QFN-32_L5.0-W5.0-P0.50-TL-EP3.7)
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_L5.0-W5.0-P0.50-TL-EP3.7 | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — C6244718 (QFN-32_L5.0-W5.0-P0.50-TL-EP3.7)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of C6244718 (QFN-32_L5.0-W5.0-P0.50-TL-EP3.7)?
Manufactured by Semiconductor, the C6244718 is housed in a QFN-32_L5.0-W5.0-P0.50-TL-EP3.7 package with 33 pins and a 0.50 mm lead pitch. Key pins include: 1 (VDDA: Power Supply Input (VDDA — 3.3V / 5.0V Standard Logic)), 2 (LNA: Multiplexed I/O & Peripheral Pin LNA (General)), 3 (VDD3P3: Power Supply Input (VDD3P3 — 3.3V / 5.0V Standard Logic)), 4 (VDD3P3: Power Supply Input (VDD3P3 — 3.3V / 5.0V Standard Logic)), 5 (VDD_RTC: Power Supply Input (VDD_RTC — 3.3V / 5.0V Standard Logic)), 6 (TOUT: Multiplexed I/O & Peripheral Pin TOUT (General)).
What are the IPC-7351B PCB Footprint dimensions for C6244718?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), C6244718 (QFN-32_L5.0-W5.0-P0.50-TL-EP3.7) 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 3.70 × 3.70 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 C6244718?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for C6244718 (Semiconductor, QFN-32_L5.0-W5.0-P0.50-TL-EP3.7) 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) & ESP8285 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | VDDA | Power_In | Primary positive power supply input (VDDA) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 2 | LNA | Digital_IO | Signal terminal LNA (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: LNA. Supported peripheral buses: General. |
| 3 | VDD3P3 | Power_In | Primary positive power supply input (VDD3P3) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 4 | VDD3P3 | Power_In | Primary positive power supply input (VDD3P3) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 5 | VDD_RTC | Power_In | Primary positive power supply input (VDD_RTC) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 6 | TOUT | Digital_IO | Signal terminal TOUT (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: TOUT. Supported peripheral buses: General. |
| 7 | CHIP_EN | Digital_IO | Signal terminal CHIP_EN (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: CHIP_EN. Supported peripheral buses: General. |
| 8 | XPD_DCDC | Digital_IO | Signal terminal XPD_DCDC (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: XPD_DCDC. Supported peripheral buses: General. |
| 9 | MTMS | Digital_IO | Signal terminal MTMS (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: MTMS. Supported peripheral buses: SWD/JTAG. |
| 10 | MTDI | Digital_IO | Signal terminal MTDI (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: MTDI. Supported peripheral buses: SWD/JTAG. |
| 11 | VDDPST | Power_In | Primary positive power supply input (VDDPST) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 12 | MTCK | Digital_IO | Signal terminal MTCK (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: MTCK. Supported peripheral buses: SWD/JTAG. |
| 13 | MTDO | Digital_IO | Signal terminal MTDO (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: MTDO. Supported peripheral buses: SWD/JTAG. |
| 14 | GPIO2 | Digital_IO | Signal terminal GPIO2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO2. Supported peripheral buses: General. |
| 15 | GPIO0 | Digital_IO | Signal terminal GPIO0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO0. Supported peripheral buses: General. |
| 16 | GPIO4 | Digital_IO | Signal terminal GPIO4 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO4. Supported peripheral buses: General. |
| 17 | VDDPST | Power_In | Primary positive power supply input (VDDPST) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 18 | SDIO_DATA_2 | Digital_IO | Signal terminal SDIO_DATA_2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: SDIO_DATA_2. Supported peripheral buses: General. |
| 19 | SDIO_DATA_3 | Digital_IO | Signal terminal SDIO_DATA_3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: SDIO_DATA_3. Supported peripheral buses: General. |
| 20 | SDIO_CMD | Digital_IO | Signal terminal SDIO_CMD (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: SDIO_CMD. Supported peripheral buses: General. |
| 21 | SDIO_CLK | Digital_IO | Signal terminal SDIO_CLK (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: SDIO_CLK. Supported peripheral buses: General. |
| 22 | SDIO_DATA_0 | Digital_IO | Signal terminal SDIO_DATA_0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: SDIO_DATA_0. Supported peripheral buses: General. |
| 23 | SDIO_DATA_1 | Digital_IO | Signal terminal SDIO_DATA_1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: SDIO_DATA_1. Supported peripheral buses: General. |
| 24 | GPIO5 | Digital_IO | Signal terminal GPIO5 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GPIO5. Supported peripheral buses: General. |
| 25 | U0RXD | Digital_IO | Signal terminal U0RXD (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: U0RXD. Supported peripheral buses: UART. |
| 26 | U0TXD | Digital_IO | Signal terminal U0TXD (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: U0TXD. Supported peripheral buses: UART. |
| 27 | XTAL_OUT | Digital_IO | Signal terminal XTAL_OUT (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: XTAL_OUT. Supported peripheral buses: RTC/CLK. |
| 28 | XTAL_IN | Digital_IO | Signal terminal XTAL_IN (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: XTAL_IN. Supported peripheral buses: RTC/CLK. |
| 29 | VDDD | Power_In | Primary positive power supply input (VDDD) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 30 | VDDA | Power_In | Primary positive power supply input (VDDA) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 31 | RES12K | Digital_IO | Signal terminal RES12K (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: RES12K. Supported peripheral buses: General. |
| 32 | EXT_RSTB | Digital_IO | Signal terminal EXT_RSTB (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: EXT_RSTB. Supported peripheral buses: General. |
| 33 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |
