Mechanical Dimensions & Land Pattern (UFQFPN-32_L5.0-W5.0-P0.50-TL-EP3.5)
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 UFQFPN-32_L5.0-W5.0-P0.50-TL-EP3.5 | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — C1338386 (UFQFPN-32_L5.0-W5.0-P0.50-TL-EP3.5)
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of C1338386 (UFQFPN-32_L5.0-W5.0-P0.50-TL-EP3.5)?
Manufactured by Semiconductor, the C1338386 is housed in a UFQFPN-32_L5.0-W5.0-P0.50-TL-EP3.5 package with 33 pins and a 0.50 mm lead pitch. Key pins include: 1 (VDD: Power Supply Input (VDD — 3.3V / 5.0V Standard Logic)), 2 (PC14-OSC32_IN: Multiplexed I/O & Peripheral Pin PC14-OSC32_IN (RTC/CLK)), 3 (PC15-OSC32_OUT: Multiplexed I/O & Peripheral Pin PC15-OSC32_OUT (RTC/CLK)), 4 (NRST: System Enable & Hardware Reset (NRST)), 5 (VDDA: Power Supply Input (VDDA — 3.3V / 5.0V Standard Logic)), 6 (PA0: Multiplexed I/O & Peripheral Pin PA0 (General)).
What are the IPC-7351B PCB Footprint dimensions for C1338386?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), C1338386 (UFQFPN-32_L5.0-W5.0-P0.50-TL-EP3.5) 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 3.50 × 3.50 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 C1338386?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for C1338386 (Semiconductor, UFQFPN-32_L5.0-W5.0-P0.50-TL-EP3.5) 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) & STM32L062 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 2 | PC14-OSC32_IN | Digital_IO | Signal terminal PC14-OSC32_IN (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PC14-OSC32_IN. Supported peripheral buses: RTC/CLK. |
| 3 | PC15-OSC32_OUT | Digital_IO | Signal terminal PC15-OSC32_OUT (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PC15-OSC32_OUT. Supported peripheral buses: RTC/CLK. |
| 4 | NRST | Digital_IO | Active-low hardware reset terminal (NRST): pulling this pin Low resets the processor core and peripherals. |
| 5 | VDDA | Power_In | Primary positive power supply input (VDDA) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 6 | PA0 | Digital_IO | Signal terminal PA0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA0. Supported peripheral buses: General. |
| 7 | PA1 | Digital_IO | Signal terminal PA1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA1. Supported peripheral buses: General. |
| 8 | PA2 | Digital_IO | Signal terminal PA2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA2. Supported peripheral buses: General. |
| 9 | PA3 | Digital_IO | Signal terminal PA3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA3. Supported peripheral buses: General. |
| 10 | PA4 | Digital_IO | Signal terminal PA4 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA4. Supported peripheral buses: General. |
| 11 | PA5 | Digital_IO | Signal terminal PA5 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA5. Supported peripheral buses: General. |
| 12 | PA6 | Digital_IO | Signal terminal PA6 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA6. Supported peripheral buses: General. |
| 13 | PA7 | Digital_IO | Signal terminal PA7 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA7. Supported peripheral buses: General. |
| 14 | PB0 | Digital_IO | Signal terminal PB0 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PB0. Supported peripheral buses: General. |
| 15 | PB1 | Digital_IO | Signal terminal PB1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PB1. Supported peripheral buses: General. |
| 16 | PB2 | Digital_IO | Signal terminal PB2 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PB2. Supported peripheral buses: General. |
| 17 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 18 | PA8 | Digital_IO | Signal terminal PA8 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA8. Supported peripheral buses: General. |
| 19 | PA9 | Digital_IO | Signal terminal PA9 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA9. Supported peripheral buses: General. |
| 20 | PA10 | Digital_IO | Signal terminal PA10 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA10. Supported peripheral buses: General. |
| 21 | PA11 | Digital_IO | Signal terminal PA11 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA11. Supported peripheral buses: General. |
| 22 | PA12 | Digital_IO | Signal terminal PA12 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA12. Supported peripheral buses: General. |
| 23 | PA13 | Digital_IO | Signal terminal PA13 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA13. Supported peripheral buses: General. |
| 24 | PA14 | Digital_IO | Signal terminal PA14 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA14. Supported peripheral buses: General. |
| 25 | PA15 | Digital_IO | Signal terminal PA15 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PA15. Supported peripheral buses: General. |
| 26 | PB3 | Digital_IO | Signal terminal PB3 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PB3. Supported peripheral buses: General. |
| 27 | PB4 | Digital_IO | Signal terminal PB4 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PB4. Supported peripheral buses: General. |
| 28 | PB5 | Digital_IO | Signal terminal PB5 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PB5. Supported peripheral buses: General. |
| 29 | PB6 | Digital_IO | Signal terminal PB6 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PB6. Supported peripheral buses: General. |
| 30 | PB7 | Digital_IO | Signal terminal PB7 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PB7. Supported peripheral buses: General. |
| 31 | BOOT0 | Digital_IO | Signal terminal BOOT0 (I, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: BOOT0. Supported peripheral buses: General. |
| 32 | PB8 | Digital_IO | Signal terminal PB8 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PB8. 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. |
