Mechanical Dimensions & Land Pattern (TQFP-32(7x7))
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 TQFP-32(7x7) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — AT42QT1110-AUR (TQFP-32(7x7))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of AT42QT1110-AUR (TQFP-32(7x7))?
Manufactured by MICROCHIP, the AT42QT1110-AUR is housed in a TQFP-32(7x7) package with 32 pins and a 0.80 mm lead pitch, supporting a VCC supply range of 3 V – 5.5 V. Key pins include: 1 (SNS0K: Multiplexed I/O & Peripheral Pin SNS0K (General)), 2 (SNS1: Multiplexed I/O & Peripheral Pin SNS1 (General)), 3 (SNS1K: Multiplexed I/O & Peripheral Pin SNS1K (General)), 4 (Vdd: Power Supply Input (Vdd — 3 V – 5.5 V)), 5 (Vss: Ground Reference Pin (Vss)), 6 (SNS2K: Multiplexed I/O & Peripheral Pin SNS2K (General)).
What are the IPC-7351B PCB Footprint dimensions for AT42QT1110-AUR?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), AT42QT1110-AUR (TQFP-32(7x7)) has a nominal body envelope of 7.00 × 7.00 mm, pitch e = 0.80 mm, and 32 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for AT42QT1110-AUR?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for AT42QT1110-AUR (MICROCHIP, TQFP-32(7x7)) 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 (32 pins) & AT42QT1110 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | SNS0K | Digital_IO | Signal terminal SNS0K (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS0K. Supported peripheral buses: General. |
| 2 | SNS1 | Digital_IO | Signal terminal SNS1 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS1. Supported peripheral buses: General. |
| 3 | SNS1K | Digital_IO | Signal terminal SNS1K (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS1K. Supported peripheral buses: General. |
| 4 | Vdd | Power_In | Primary positive power supply input (Vdd) operating in the 3 V – 5.5 V domain (Max rating: 5.5V). |
| 5 | Vss | GND | 0V electrical ground return terminal (Vss) for internal core logic, I/O drivers, and analog sub-blocks. |
| 6 | SNS2K | Digital_IO | Signal terminal SNS2K (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS2K. Supported peripheral buses: General. |
| 7 | SNS2 | Digital_IO | Signal terminal SNS2 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS2. Supported peripheral buses: General. |
| 8 | SNS3 | Digital_IO | Signal terminal SNS3 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS3. Supported peripheral buses: General. |
| 9 | SNS3K | Digital_IO | Signal terminal SNS3K (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS3K. Supported peripheral buses: General. |
| 10 | SNS4 | Digital_IO | Signal terminal SNS4 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS4. Supported peripheral buses: General. |
| 11 | SNS4K | Digital_IO | Signal terminal SNS4K (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS4K. Supported peripheral buses: General. |
| 12 | SNS5 | Digital_IO | Signal terminal SNS5 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS5. Supported peripheral buses: General. |
| 13 | SNS5K | Digital_IO | Signal terminal SNS5K (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS5K. Supported peripheral buses: General. |
| 14 | SS | Digital_IO | Signal terminal SS (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SS. Supported peripheral buses: General. |
| 15 | MOSI | Digital_IO | Signal terminal MOSI (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: MOSI. Supported peripheral buses: SPI. |
| 16 | MISO | Digital_IO | Signal terminal MISO (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: MISO. Supported peripheral buses: SPI. |
| 17 | SCK | Digital_IO | Signal terminal SCK (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SCK. Supported peripheral buses: SPI. |
| 18 | Vdd | Power_In | Primary positive power supply input (Vdd) operating in the 3 V – 5.5 V domain (Max rating: 5.5V). |
| 19 | SNS6K | Digital_IO | Signal terminal SNS6K (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS6K. Supported peripheral buses: General. |
| 20 | SNS6 | Digital_IO | Signal terminal SNS6 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS6. Supported peripheral buses: General. |
| 21 | Vss | GND | 0V electrical ground return terminal (Vss) for internal core logic, I/O drivers, and analog sub-blocks. |
| 22 | SNS7K/DETECT0 | Digital_IO | Signal terminal SNS7K/DETECT0 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS7K/DETECT0. Supported peripheral buses: General. |
| 23 | SNS7/DETECT1 | Digital_IO | Signal terminal SNS7/DETECT1 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS7/DETECT1. Supported peripheral buses: General. |
| 24 | SNS8/DETECT2 | Digital_IO | Signal terminal SNS8/DETECT2 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS8/DETECT2. Supported peripheral buses: General. |
| 25 | SNS8K/DETECT3 | Digital_IO | Signal terminal SNS8K/DETECT3 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS8K/DETECT3. Supported peripheral buses: General. |
| 26 | SNS9/DETECT4 | Digital_IO | Signal terminal SNS9/DETECT4 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS9/DETECT4. Supported peripheral buses: General. |
| 27 | SNS9K/DETECT5 | Digital_IO | Signal terminal SNS9K/DETECT5 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS9K/DETECT5. Supported peripheral buses: General. |
| 28 | CHANGE | Digital_IO | Signal terminal CHANGE (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: CHANGE. Supported peripheral buses: General. |
| 29 | RESET | Digital_IO | Active-low hardware reset terminal (RESET): pulling this pin Low resets the processor core and peripherals. |
| 30 | SNS10/DETECT6 | Digital_IO | Signal terminal SNS10/DETECT6 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS10/DETECT6. Supported peripheral buses: General. |
| 31 | SNS10K/SYNC | Digital_IO | Signal terminal SNS10K/SYNC (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS10K/SYNC. Supported peripheral buses: General. |
| 32 | SNS0 | Digital_IO | Signal terminal SNS0 (I/O, 3 V – 5.5 V domain). Multiplexed alternate functions: SNS0. Supported peripheral buses: General. |




