Mechanical Dimensions & Land Pattern (TQFP-44(10x10))
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-44(10x10) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Technical Frequently Asked Questions (FAQ) — ATF1502AS-7AX44 (TQFP-44(10x10))
Quick answers covering Pinout, IPC-7351B Land Pattern dimensions, and CAD export formatsWhat is the Pinout and operating voltage specification of ATF1502AS-7AX44 (TQFP-44(10x10))?
Manufactured by MICROCHIP, the ATF1502AS-7AX44 is housed in a TQFP-44(10x10) package with 44 pins and a 0.80 mm lead pitch. Key pins include: 1 (I/O/TDI: Multiplexed I/O & Peripheral Pin I/O/TDI (General)), 2 (I/O: Multiplexed I/O & Peripheral Pin I/O (General)), 3 (I/O: Multiplexed I/O & Peripheral Pin I/O (General)), 4 (GND: Ground Reference Pin (GND)), 5 (PD1/I/O: Multiplexed I/O & Peripheral Pin PD1/I/O (General)), 6 (I/O: Multiplexed I/O & Peripheral Pin I/O (General)).
What are the IPC-7351B PCB Footprint dimensions for ATF1502AS-7AX44?
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), ATF1502AS-7AX44 (TQFP-44(10x10)) has a nominal body envelope of 10.00 × 10.00 mm, pitch e = 0.80 mm, and 44 copper pads.
Where can I download KiCad (.kicad_mod, .kicad_sym), Fusion 360 (.lbr), and 3D STEP models for ATF1502AS-7AX44?
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for ATF1502AS-7AX44 (MICROCHIP, TQFP-44(10x10)) 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 (44 pins) & ATF1502 Family VariantsExpand static table
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| 1 | I/O/TDI | Digital_IO | Signal terminal I/O/TDI (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O/TDI. Supported peripheral buses: General. |
| 2 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 3 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 4 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 5 | PD1/I/O | Digital_IO | Signal terminal PD1/I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PD1/I/O. Supported peripheral buses: General. |
| 6 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 7 | TMS/I/O | Digital_IO | Signal terminal TMS/I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: TMS/I/O. Supported peripheral buses: General. |
| 8 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 9 | VCC | Power_In | Primary positive power supply input (VCC) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 10 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 11 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 12 | /O | Digital_IO | Signal terminal /O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: /O. Supported peripheral buses: General. |
| 13 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 14 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 15 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 16 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 17 | VCC | Power_In | Primary positive power supply input (VCC) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 18 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 19 | PD2/I/O | Digital_IO | Signal terminal PD2/I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: PD2/I/O. Supported peripheral buses: General. |
| 20 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 21 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 22 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 23 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 24 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 25 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 26 | I/O/TCK | Digital_IO | Signal terminal I/O/TCK (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O/TCK. Supported peripheral buses: General. |
| 27 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 28 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 29 | VCC | Power_In | Primary positive power supply input (VCC) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 30 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 31 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 32 | I/O/TDO | Digital_IO | Signal terminal I/O/TDO (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O/TDO. Supported peripheral buses: General. |
| 33 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 34 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 35 | GCLK3/I/O | Digital_IO | Signal terminal GCLK3/I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GCLK3/I/O. Supported peripheral buses: General. |
| 36 | GND | GND | 0V electrical ground return terminal (GND) for internal core logic, I/O drivers, and analog sub-blocks. |
| 37 | GCLK1/I | Digital_IO | Signal terminal GCLK1/I (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GCLK1/I. Supported peripheral buses: General. |
| 38 | I/OE1 | Digital_IO | Signal terminal I/OE1 (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/OE1. Supported peripheral buses: General. |
| 39 | GCLR/I | Digital_IO | Signal terminal GCLR/I (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GCLR/I. Supported peripheral buses: General. |
| 40 | GCLK2/OE2/I | Digital_IO | Signal terminal GCLK2/OE2/I (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: GCLK2/OE2/I. Supported peripheral buses: General. |
| 41 | VCC | Power_In | Primary positive power supply input (VCC) operating in the 3.3V / 5.0V Standard Logic domain (Max rating: 5.5V). |
| 42 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 43 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |
| 44 | I/O | Digital_IO | Signal terminal I/O (I/O, 3.3V / 5.0V Standard Logic domain). Multiplexed alternate functions: I/O. Supported peripheral buses: General. |





![ATF1502AS-7AX44 (TQFP-44(10x10)) — 27 ATF1502AS(L) [DATASHEET]](/api/v1/assets/C461611/extracted/figures/p27_fig01.png)