feat: add PDIP-8, SPDIP-28 aliases and UTDFN-4-EP(1x1) footprint support#649
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sagarmaurya64-ai wants to merge 4 commits into
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feat: add PDIP-8, SPDIP-28 aliases and UTDFN-4-EP(1x1) footprint support#649sagarmaurya64-ai wants to merge 4 commits into
sagarmaurya64-ai wants to merge 4 commits into
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…sion - Extended dfn_def schema to accept ep (bool), epw, eph parameters - dfn generator now places an exposed/thermal center pad (pin N+1) when ep=true - Added UTDFN-4-EP(1x1) normalisation in normalizeDefinition() mapping to dfn4_w1.00mm_h1.00mm_p0.65mm_pl0.30mm_pw0.25mm_ep_epw0.50mm_eph0.50mm - Added generic utdfn -> dfn fallback for other UTDFN sizes - Added test cases in tests/dfn.test.ts verifying pad count, EP position, and alias parity Closes tscircuit#183
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Resolves #371, #180, #183
Summary
This PR adds support for multiple missing footprint packages:
1. PDIP-8 alias (#371 - $10)
PDIP-<N>as a string alias that normalizes to standarddip<N>PDIP-8→dip82. SPDIP-28 alias (#180 - $10)
SPDIP-<N>as a string alias for Shrink DIP (70 mil / 1.778mm pitch)SPDIP-28→dip28_p1.778mm3. UTDFN-4-EP(1x1) footprint (#183 - $10)
Adds support for the Ultra-Thin Dual Flat No-Lead with Exposed Pad (1×1 mm body) package.
Implementation:
src/fn/dfn.ts— Addedep,epw, andephparameters. Whenep=true, a rectangular exposed thermal pad is placed at center (pinN+1).UTDFN-4-EP(1x1)normalization innormalizeDefinition()mapping to:dfn4_w1.00mm_h1.00mm_p0.65mm_pl0.30mm_pw0.25mm_ep_epw0.50mm_eph0.50mmutdfn<N>aliases also now map todfn<N>.Dimensions (from SGM2036/UTDFN-1×1-4L datasheet):
Tests Added
tests/dip.test.ts— PDIP-8 and SPDIP-28 alias parity teststests/dfn.test.ts— UTDFN-4-EP(1x1) pad count, EP position, and alias parity testsAll local format checks pass cleanly.