Editing: QFN-56-1EP (RP2040 / RP2350)

Field: AI Skill Technical Reference

# QFN-56-1EP (RP2040 / RP2350)

**Package:** QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm
**Library:** Package_DFN_QFN
**Category:** Microcontroller
**Pads:** 57
**Pitch:** 0.4mm
**Body Size:** 7.0 x 7.0mm
**Mounting:** Surface Mount

## Description

The QFN-56-1EP is a high-density 56-pin Quad Flat No-lead package with 0.4mm pitch and a 7 x 7mm body. This is the package for the Raspberry Pi RP2040 — the dual-core ARM Cortex-M0+ microcontroller that powers the Raspberry Pi Pico and hundreds of third-party boards. The RP2350 (dual Cortex-M33 / RISC-V) uses a nearly identical QFN footprint at the same 7x7mm body size. The 3.2 x 3.2mm exposed thermal pad provides excellent heat dissipation. At 0.4mm pitch, this package requires reflow soldering with a precision stencil.

## Usage Notes

- Designed for reflow soldering (paste stencil recommended)
- Pad size optimized for 0.4mm pitch components
- Follow IPC-7351 land pattern guidelines

## KiCad Library Reference

This footprint is from the official KiCad `Package_DFN_QFN` library.
Full identifier: `Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm`

To use in your project:
1. Open the Footprint Library Manager in KiCad
2. Search for `QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm`
3. Assign to your schematic symbol in the Symbol Properties dialog

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